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Antique French 18 Karat/ Platinum Diamond and Ruby Heart Pin/ Brooch/ Pendant
Located in San Francisco, CA
I LOVE this Gorgeous Antique 18K Yellow Gold/ Platinum Diamond and Ruby Heart Pin/ Brooch/ Pendant
Category

Antique Late 19th Century French Belle Époque Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, Platinum

Lovely Ruby Brilliant Ring 5 Hearts 1.20 ct and 0.40 ct beautiful Quality
Located in Viena, Viena
each heart for a special occasion or just beautiful to look at 5 raspberry colored ruby hearts
Category

2010s European Modern Band Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

1916 Nordic Ring Garnet solid 18K Gold Ø7.25US /1.25gr
Located in SE
A Ring with the band in solid 18K Orange Gold with engraved shoulders. Bezel set heart shaped rose
Category

Vintage 1910s Swedish Art Deco Solitaire Rings

Materials

Ruby, 18k Gold

Roberto Coin Elephant Skin Heart Pendant
By Roberto Coin
Located in Boca Raton, FL
Material: 18k yellow gold Gemstone Details: Round ruby gemstone measuring approximately 2mm in
Category

21st Century and Contemporary Pendant Necklaces

Materials

Ruby, 18k Gold, Yellow Gold

Leo Pizzo Multi-Gemstone Heart Pendant
By Leo Pizzo
Located in Mayfair, London, London
A beautiful 18k yellow gold multi-gemstone Leo Pizzo heart pendant. The pendant comprises of a
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Emerald, Multi-gemstone, Ruby, Sapphire, 18k Gold, Yellow Gold

Victorian "REGARD" Gemstone Floral Heart Necklace
Located in Narberth, PA
is crafted in vibrant 18kt gold and has a very feminine heart-shaped design. Set around the heart
Category

Antique 1880s French Pendant Necklaces

Materials

Amethyst, Diamond, Emerald, Garnet, Ruby, 18k Gold

Antique Victorian Gemset Repousse Heart Padlock Locket
Located in New York, NY
A charming Victorian repousse heart locket with padlock top set with emeralds and rubies, circa
Category

Antique 1880s Unknown High Victorian Pendant Necklaces

Materials

Emerald, Ruby, 18k Gold

GIA Certified "Toi Et Moi" Bypass Ruby and Diamond Ring
Located in Beverly Hills, CA
, no-heat ruby. The ring is hand crafted in 18K yellow and white gold. GIA grades the 1.57 carat heart
Category

Late 20th Century Unknown Retro Cocktail Rings

Materials

Diamond, White Diamond, Ruby, 18k Gold, White Gold, Yellow Gold

Cartier Diamond and Multi-Gem Two Heart Necklace
By Cartier
Located in Mayfair, London, London
An 18k yellow gold diamond and multi-gem necklace by Cartier. The necklace features a 3 row brick
Category

21st Century and Contemporary Chain Necklaces

Materials

Diamond, Emerald, Ruby, 18k Gold, Yellow Gold

TIffany Ruby Diamond 18K Heart Necklace
Located in New York , NY
Ruby and diamond 18K yellow gold Tiffany heart necklace. The rubies are blood red, beautiful
Category

Late 20th Century American Drop Necklaces

Materials

Ruby, Diamond, 18k Gold

Buccellati Ruby Gold Heart Ring
By Buccellati
Located in Lambertville, NJ
Delicate 18k gold heart ring, crafted by Buccellati, set with ruby gemstones. Retail $5900. Comes
Category

21st Century and Contemporary Italian More Rings

Materials

Ruby, 18k Gold

Ruby Diamond Gold Heart Brooch
Located in Portland, ME
18K Yellow gold ruby and diamond heart brooch. The dome shaped heart is pave set with 50 round
Category

Vintage 1980s Unknown Modern Brooches

Materials

Diamond, Ruby, 18k Gold

Ruby Diamond Heart Gold Pendant
Located in ALTRINCHAM, GB
Pretty and romantic French ruby and diamond heart gold pendant. The vivid pinkish red pear shaped
Category

Late 20th Century French Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold

Ruby Diamond Gold Heart Earclips
Located in Atlanta, GA
A pair of 18 karat yellow gold, ruby and diamond heart earclips, of bombe form set in the center
Category

20th Century Clip-on Earrings

Materials

Diamond, Ruby, 18k Gold

Diamond Ruby Heart Gold Pendant
Located in New York, NY
A petite heart pendant. Comprised of alternating rubies and diamonds set at a jaunty angle. 18K
Category

Vintage 1930s American Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold

Ruby Heart Blason Ring in 18k Yellow Gold by Elie Top
By Elie Top
Located in Paris, France
Ruby Heart Blason Ring in 18k yellow gold by Elie Top. Blason Heart Ruby Ring in Distressed Silver
Category

21st Century and Contemporary French Neoclassical Fashion Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold, Silver

Tiffany Co. Ruby Gold Latticework Heart Brooch
By Tiffany Co.
Located in New York, NY
Lovely Tiffany& Co. heart shape brooch, 18K gold, flowers with faceted ruby centers set in fine
Category

Vintage 1980s Italian Brooches

Materials

Ruby, 18k Gold

Heart Shaped 18k White Gold Ring with Center Ruby
Located in Surfside, FL
Heart shaped ring in 18k white gold with center 1.10 carat ruby and surrounded by 0.86 carats in
Category

20th Century Fashion Rings

Materials

White Gold

18 Karat Yellow Gold Ruby Heart Necklace
Located in Gainesville, FL
You are viewing a Beautiful Ruby Heart Pendant. The pendant is crafted from 18k yellow gold. It
Category

21st Century and Contemporary Unknown Contemporary Pendant Necklaces

Materials

Ruby, 14k Gold, 18k Gold, Yellow Gold

Modern Gold Floating Diamond and Ruby Heart Ring
Located in Lambertville, NJ
Modern 18k gold heart shape ring with floating 0.20ctw diamonds and 2.50ctw rubies. Ring top is
Category

21st Century and Contemporary More Rings

Materials

Diamond, Ruby, 18k Gold

TIFFANY CO Gold and Ruby Heart Pin/Pendant
By Tiffany Co.
Located in New York, NY
Beautiful puffy Tiffany &CO heart,that could be worn as a pin or pendant. 18K gold, fine lattice
Category

Vintage 1960s American Brooches

Materials

Ruby, 18k Gold

​Ruby Diamond Heart Brooch
Located in Greenwich, CT
Ruby and diamond heart brooch, set with 88 circular-cut rubies weighing approximately 7.42 total
Category

20th Century American Brooches

Materials

Diamond, Ruby, 18k Gold, Platinum, Yellow Gold

Ruby Diamond Gold Heart Shaped Drop Earrings
Located in Vail, CO
rubies and diamond accents, suspended from diamond-set bow-shaped tops, mounted in 18k yellow gold. Six
Category

21st Century and Contemporary American Drop Earrings

Materials

Diamond, Ruby, White Diamond, 18k Gold, Yellow Gold

Long Faceted Ruby Bead and Gold Heart Necklace
Located in New York, NY
Long raw ruby bead necklace. 85 Ruby beads in total. Heart charm is set in 18K yellow gold with two
Category

Vintage 1970s Italian Beaded Necklaces

Materials

Diamond, Ruby, Sapphire, 18k Gold

Mozafarian Spinning Marguerite Pendant with Ruby Heart
Located in London, England
heart, 0.22 ct white diamonds, 0.08 ct VVS white diamond, and 5.48 g of 18k yellow and white gold
Category

21st Century and Contemporary European Artisan Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Contemporary Ruby Diamond Heart Pendant Rose Gold Chain 18 Carat
Located in Hamilton, AU
diamonds, is a stunning piece of 18-carat gold jewellery. The intense red of the ruby, emblematic of
Category

21st Century and Contemporary Australian Contemporary Pendant Necklaces

Materials

Diamond, Ruby, Gold, 18k Gold, Rose Gold, White Gold

Diamond Heart with Ruby Cross
Located in Los Angeles, CA
Pave diamond heart with ruby cross.
Category

Unknown Drop Necklaces

Materials

Diamond, Ruby, Platinum, 18k Gold

Stambolian Heart Shape Ruby Diamonds 18 Karat White Gold Band Ring
By Stambolian
Located in Boca Raton, FL
Stambolian Heart Shape Ruby Diamonds 18K White Gold Band Ring This gorgeous band is set 3/4 of the
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

1780s Georgian Ruby Diamond Gold Crowned Heart Ring
Located in Boston, Lincolnshire
A Special Georgian c.1780s 18 carat Gold and Dutch Rose cut Diamond "Burning with Passion"
Category

Antique 1780s British Georgian Engagement Rings

Materials

Diamond, Ruby, 18k Gold, Silver

Classic Charles Krypell Ruby Diamond Gold Heart Pendant Brooch
By Charles Krypell
Located in Lambertville, NJ
18k gold heart brooch pendant, crafted by Charles Krypell, set with approx. 1.20ctw in diamonds and
Category

20th Century American Brooches

Materials

Diamond, Ruby, 18k Gold

Heart Ruby Ring GRS Certified
Located in Knightsbridge, GB
WHITE GOLD HEART RUBY RING - 4.45 CT Set in 18Kt White Gold Total ruby weight: 4.03 ct [ 1 stone
Category

2010s British Modern Stud Earrings

Materials

White Diamond, Ruby, 18k Gold

GIA Certified 2.01 Carat Heart Shape Ruby and Diamond Heart Pendant with Chain
Located in Boca Raton, FL
18K Yellow Gold and Diamond Heart Pendant with GIA Certified 2.01 Carat Heart Shape Ruby center
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Antique Victorian Ruby Heart 18 Carat Gold Pendant, circa 1880
Located in Lancaster, Lancashire
This adorable Victorian 18ct Yellow Gold Ruby heart is, Circa 1880. The pendant is set with a
Category

Antique 1880s Unknown Victorian Pendant Necklaces

Materials

Ruby, 18k Gold

Tiffany Co. Ruby Heart Brooch/Pendant
By Tiffany Co.
Located in Beverly Hills, CA
This 18k roped gold Tiffany & Co. heart with juicy rubies beats only for you.
Category

Vintage 1960s American Drop Necklaces

Materials

Ruby, 18k Gold

Antique Victorian Ruby Heart Pendant 18 Carat Gold, circa 1900
Located in Lancaster, Lancashire
a star in the centre of the heart which is all modelled in 18ct Yellow Gold. This would look
Category

Antique Early 1900s British Victorian Pendant Necklaces

Materials

Ruby, 18k Gold, Yellow Gold

1.22ct Ruby Pendant with 0.31tct Diamonds Set in 18k Two Tone Gold
Located in New York, NY
Diamonds to form this pendant. 1.22ct Ruby Pendant 0.31Tct Diamond Set 18k Two Tone Gold
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Ruby, 18k Gold

Antique Ruby Diamond Double Heart Ring
Located in Austin, TX
form of interlocking hearts. Set in 18k rose gold. Unidentified european hallmarks. Size 6.5, easily
Category

20th Century Unknown Edwardian Fashion Rings

Materials

Diamond, Ruby, 18k Gold

Antique Victorian Ruby Sapphire Opal Heart 18 Carat Gold Brooch
Located in Lancaster , GB
pretty 6ct heart shaped Opal in the centre and surrounded by Rubies and Diamonds The brooch stems out
Category

Antique Early 1900s British Victorian Brooches

Materials

Diamond, Opal, Ruby, Blue Sapphire, 18k Gold, Yellow Gold

Inflated Heart Pavé Ruby Blue Sapphire Double Sided Pendant Gold Beaded Chain
By BOON
Located in Bangkok, TH
Heart-Shaped Pavé Ruby and Blue Sapphire Double Sided Pendant in 18K Gold and 18K Gold Beaded Chain
Category

2010s Thai Pendant Necklaces

Materials

Ruby, Blue Sapphire, Gold, 18k Gold

Edwardian Heart Diamond Ruby Pendant Necklace
Located in Paris, IDF
calibré cut rubies set in yellow gold. Above the heart, a bow set with a ruby and diamonds. Pendant
Category

20th Century French Edwardian Drop Necklaces

Materials

Ruby, White Diamond, 18k Gold, Platinum

Contemporary 18ct Gold Heart Sapphire, Ruby and Diamond Curb Link Necklace
Located in Lancashire, Oldham
A stunning contemporary 18ct yellow gold heart shaped blue sapphire, cabochon ruby and round
Category

1990s Unknown Contemporary Link Necklaces

Materials

Diamond, Ruby, Sapphire, Gold, 18k Gold, Yellow Gold

Roberto Coin Heart Shaped Ring 2 Carat Diamond Rose Gold with Ruby
By Roberto Coin
Located in Miami, FL
: Rose Gold Metal Purity: 18k Stones: Round Brilliant Cut Diamonds 1 Round Ruby
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Ruby, 18k Gold, Rose Gold

Antique Georgian Diamond Ruby Enamel 18ct Gold Heart Locket Pendant, circa 1830
Located in Lancaster, Lancashire
This fabulous Georgian 18ct Yellow Gold heart locket pendant is Circa 1830. Set with a central
Category

Antique 1830s Unknown Georgian Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold

Heart Shaped Ruby Black White Diamond Vertical Drop White Gold Earrings
Located in Bangkok, TH
Metal: 18K Gold Ruby: 4.45 ct White Diamond: 2.16 ct Black Diamond: 1.24ct
Category

21st Century and Contemporary Thai Drop Earrings

Materials

White Diamond, Black Diamond, Ruby, 18k Gold, White Gold

Antique Victorian Heart Locket 18 Carat Gold Diamond Sapphire Ruby, circa 1880
Located in Lancaster, Lancashire
This beautiful Victorian 18ct Gold heart locket is, Circa 1880. The locket is fabulous, it
Category

Antique 1880s Unknown Victorian Necklace Enhancers

Materials

Diamond, Ruby, Sapphire, 18k Gold

Antique Victorian Ruby Diamond Enamel Heart Pendant Necklace
Located in Sale, Cheshire
original diamond-set bail. Modelled in 18k gold with silver settings. STONES Natural Ruby cabochon - 4.4mm
Category

Antique 19th Century English Victorian Pendant Necklaces

Materials

White Diamond, Ruby, 18k Gold, Silver

18 Karat Yellow Gold English Ruby Sapphire and Diamond Double Heart Ring
Located in QLD , AU
down the shoulders, the rich buttery 18k yellow gold mounting and the 0.75cts of glistening old
Category

Antique 19th Century British Victorian Engagement Rings

Materials

Diamond, Ruby, Sapphire, 18k Gold, Yellow Gold

French Gold Heart Charm
Located in New York, NY
Lovely figural heart charm. 18K yellow gold, set with a diamond and two rubies. Applied plus and
Category

Vintage 1930s French More Jewelry

Materials

Diamond, Ruby, 18k Gold

Regal Diamond Heart Necklace with Ruby and Diamonds in 18 Karat Gold
Located in New Orleans, LA
pavè diamonds that have I color and SI clarity. The necklace is 18k yellow gold measures 18" long and
Category

1990s Unknown Contemporary Multi-Strand Necklaces

Materials

Diamond, Yellow Diamond, Ruby, 18k Gold, Yellow Gold

Ruby Faceted Beads with Puffed Heart and Diamond Bees
Located in New York, NY
Raw Faceted Ruby Necklace Long with Yellow Gold Puffed Heart. Details on the heart are diamond
Category

Late 20th Century Italian Beaded Necklaces

Materials

Ruby, Diamond, 18k Gold

Antique Victorian Sapphire Ruby Diamond Double Heart Ring
Located in Sale, Cheshire
heart - each on set with a halo of diamonds around either a blue sapphire or a ruby. Double heart rings
Category

Antique 19th Century English Victorian Engagement Rings

Materials

White Diamond, Ruby, Blue Sapphire, 18k Gold, Yellow Gold

Stunning 18 Carat Gold Natural Diamond and Ruby Heart Pendant and Earrings Suite
Located in St Helens, GB
A superb ladies suite of jewellery consisting of Earrings and Pendant. Solid 18 carat yellow gold
Category

20th Century British Retro Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold

French Gold Heart Beat Charm
Located in New York, NY
ruby heart surrounded by two cherubs. An applied banner on top says "IL BAT POUR TOI"
Category

Vintage 1930s French More Jewelry

Materials

Ruby, 18k Gold

Victorian Ruby Sapphire and Diamond Bowed Double Heart Ring
Located in Sale, Cheshire
modelled in 18k gold, with clear English hallmarks from the year 1899. STONES Ruby, Blue Sapphire, Old
Category

Antique 19th Century English Victorian Cluster Rings

Materials

White Diamond, Ruby, Blue Sapphire, 18k Gold

Chopard Happy Diamonds White Gold Diamond and Rubies Heart Pendant Necklace New
By Chopard
Located in New York, NY
Karat White Gold (25.35gr) 56 Diamonds on the pendant (.99 Carats) 34 Rubies on the pendant (.64
Category

Early 2000s Swiss Pendant Necklaces

Materials

18k Gold

Alex Soldier Sapphire Ruby Diamond Gold Heart Ring as seen on Samantha Mathis
By Alex Soldier
Located in New York, NY
Alex Soldier Gold Open Heart Ring: made in 18 karat yellow gold with diamonds, rubies and sapphires
Category

2010s American Contemporary Band Rings

Materials

Diamond, White Diamond, Ruby, Sapphire, Blue Sapphire, Yellow Sapphire, ...

18 Karat White Gold Diamond and Ruby Ring
By Gianni Lazzaro
Located in Duesseldorf, DE
18 Karat White Gold Diamond and Ruby Ring 35 Diamonds 0.61 Carat 1 Ruby African 10.24 carat
Category

21st Century and Contemporary German Fashion Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

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Ruby 18k Gold Heart For Sale on 1stDibs

On 1stDibs, you can find the most appropriate piece of ruby 18k gold heart for your needs in our varied inventory. Frequently made of Gold, 18k Gold and Yellow Gold, this item was constructed with great care. Our collection of these items for sale includes 201 vintage editions and 179 modern creations to choose from as well. If you’re looking for an item from our selection of ruby 18k gold heart from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced as recently as the 21st Century. As it relates to this specific piece, our collection includes designs that are universally popular, but .5 Carat and 1 Carat carat weights, specifically, are sought with frequency. A choice in our collection of ruby 18k gold heart from La Fleur Jewels, Tiffany Co. and Bulgari — each of whom created a beautiful version of this treasured accessory — is worth considering. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes heart cut and princess cut alternatives. When shopping for an object in our assortment of ruby 18k gold heart, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Ruby 18k Gold Heart?

The price for a piece of ruby 18k gold heart starts at $302 and tops out at $450,000 with these necklaces, on average, selling for $4,888.

Why Gold Shines in Jewelry Craftsmanship

Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself. 

Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.

Since its founding, in 1837, Tiffany Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.

For the woman who prefers a minimalist look, the Tiffany Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.

Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.

In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so. 

Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.

Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle. 

BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.

A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in

Since Van Cleef Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.

Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.

Find a stunning collection of vintage and antique gold jewelry on 1stDibs.

The Legacy of Ruby in Jewelry Design

This deep red gem is the color of heat and passion — vintage and antique ruby jewelry is perfect for those born in the middle of summer.

Rubies are one of the few gemstones that can give diamonds a run for their money. Just consider the Van Cleef Arpels “scarf” necklace the Duke of Windsor presented to the Duchess on her 40th birthday, in 1936 — set with diamonds and dripping with rubies, a testament to the deep-red gemstone’s power — or the slippers encrusted with 4,600 rubies that Harry Winston made to commemorate The Wizard of Oz’s golden anniversary. July babies have permission to adorn themselves with this beautiful red stone even when it’s not their birthday.

Rubies are considered precious stones — along with diamonds, sapphires and emeralds — and have a hardness of 9.0 on the Mohs Scale, surpassed only by Moissanite and diamonds. They are composed of corundum, a colorless mineral that is also the basic material of sapphires. In the July birthstone, the red of the gemstone — and the various hues seen in sapphires — are produced by the presence of trace elements. In the case of a ruby, this element is chromium. Rubies range in color from vermilion to a violet red. They are also pleochroic, which means that a stone’s hue can vary depending on the direction of viewing. The most sought-after color is pigeon’s blood: pure red with a hint of blue.

Rubies that are hosted in dolomite marble are the most prized: Because the marble is low in iron, so are the rubies, resulting in a more intense color. Rubies found in basalt, which has a higher iron content, are generally darker and less intense.

When shopping for antique and vintage ruby jewelry, remember that the 4Cs of selecting the perfect diamond — color, clarity, cut and carat — also apply to rubies.

According to the Gemological Institute of America, the color of the July birthstone should be a vibrant to slightly purplish red, and the stone should be clear and inclusion-free. Accordingly, the cut should show off its color and clarity. As for the last criterion, fine rubies more than a carat in weight are rare. Often, large rubies are more expensive than diamonds of comparable weights.

Find a collection of ruby necklaces, ruby rings and other accessories on 1stDibs.

Questions About Ruby 18k Gold Heart
  • 1stDibs ExpertApril 5, 2022
    18K green gold is an alloy created by mixing silver, copper and zinc with normal gold. 18K green gold is greener than 14K green gold. On 1stDibs, shop a wide collection of genuine 18K green gold from some of the world's top sellers.
  • 1stDibs ExpertFebruary 22, 2021
    Yes, 18k is the perfect karatage for jewelry. While 24k is more prized and typically more expensive, it is also less dense and durable than 18k gold.
  • 1stDibs ExpertApril 5, 2022
    Yes, 18K gold is real gold. However, it is not pure gold. Something marked 18K is 75 percent genuine gold and 25 percent metal alloy. On 1stDibs, shop a range of expertly vetted gold jewelry from some of the world’s top sellers.
  • 1stDibs ExpertApril 5, 2022
    Whether or not 18K gold wears off depends on how it's made. The finish will not wear off of a piece of jewelry or another object made entirely out of 18K gold. However, wear can occur on pieces that feature 18K gold plating, a thin layer of gold applied over another type of metal. You'll find a large selection of gold jewelry and decorative objects on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    An 18K gold watch is a timepiece made from gold precious metal of a specific purity. The term 18K means 18-karat, a precious metal that is 75 percent pure gold and 25 percent alloy. Shop a large collection of gold watches on 1stDibs.
  • 1stDibs ExpertMarch 22, 2022
    18K Italy gold is 18-karat gold produced in Italy. Karats tell you how much of a piece of metal is genuine gold. In the case of 18-karat gold, 18 parts are pure gold, and six parts are other metals. This makes 18-karat pieces 75 percent gold. You'll find a large collection of gold jewelry on 1stDibs.
  • 1stDibs ExpertAugust 26, 2024
    The difference between 24K gold and 18K gold is how much pure gold the metals contain. Something made of 24-karat gold is 99.9% pure gold, while 18-karat gold items are 75% gold and 25% alloy metals. Generally, 18-karat gold is more durable and scratch-resistant due to the presence of alloy metals. On the other hand, 24-karat gold tends to be more richly colored and expensive. On 1stDibs, find a wide range of gold jewelry.
  • 1stDibs ExpertApril 5, 2022
    Yes, gold dipped, also known as gold plated, pieces are considered real gold. The process coats a piece of metal or alloy with a layer of gold for a gold finish. Shop a collection of 18 karat gold jewelry, solid and dipped, on 1stDibs.
  • 1stDibs ExpertAugust 29, 2024
    Yes, 18K 750 is real gold. Gold pieces that bear this hallmark are 18-karat gold, a 75% pure gold alloy and 25% base metal. One of the most popular materials for fine jewelry, 18-karat gold shows off a rich yellow, white or rose color and resists scratching more readily than pure gold. Explore a wide variety of 18-karat gold jewelry on 1stDibs.
  • 1stDibs ExpertNovember 14, 2023
    Yes, 18-karat gold can be good for earrings. Because it is an alloy, 18-karat gold is more durable and scratch-resistant than pure 24-karat gold. You can find 18-karat gold in rich warm yellow, cooler white with warm undertones and light pink rose. On 1stDibs, explore a large collection of gold earrings.
  • 1stDibs ExpertFebruary 22, 2021
    Yes, 18k gold can tarnish, but it is uncommon. Pure gold does not combine easily with oxygen and therefore does not tarnish. The higher the karat, the less likely a piece of gold will tarnish.
  • 1stDibs ExpertMarch 22, 2022
    Yes, 18-karat gold can turn green in some circumstances. This type of gold is about 75 percent genuine gold and 25 percent alloy, and the other metal or metals used to produce it may react negatively to acidic substances. When this occurs, 18-karat gold may take on a greenish hue. On 1stDibs, shop a large selection of gold jewelry.
  • 1stDibs ExpertSeptember 16, 2024
    Yes, many people believe that 18k gold is worth buying. Due to the metal's durability, jewelry produced from 18-karat gold is often resistant to scratching and damage. In addition, the large amount of pure gold in the alloy gives white, rose and yellow 18-karat gold a vibrant color. However, whether or not it’s worth investing in 18-karat gold is totally subjective! At 1stDibs, we believe in buying what you love. Our shopping experience enables discovery and learning, whether you are a seasoned connoisseur or just beginning your collection. Find a diverse range of gold jewelry on 1stDibs.
  • 1stDibs ExpertNovember 26, 2024
    On a watch, 18K gold means that the watch features genuine gold. An alloy, 18-karat gold is 75% pure gold and 25% other metals. The high gold content gives the metal an attractive color, while the alloy metals add strength to increase its durability. An 18-karat gold watch may be solid gold or gold-filled, which means it is primarily another metal that the watchmaker finished with a thin layer of 18-karat gold. On 1stDibs, find a large selection of gold watches.
  • 1stDibs ExpertDecember 5, 2024
    Many watch lovers believe that 18K gold is good for watches. An alloy, 18-karat gold is 75% pure gold and 25% other metals. The amount of gold makes the color of the alloy, whether it's white, yellow or rose, rich and visually appealing. At the same time, the addition of alloy metals increases the strength of the gold material. Explore a large selection of watches on 1stDibs.
  • 1stDibs ExpertOctober 12, 2021
    The difference between 14k and 18k rose gold metal is that the 14k rose gold is less pure than 18k. 14k rose gold has a deeper pink color because of greater amounts of copper, whereas 18k rose gold has 75% gold and appears yellow. 14k rose gold is increasingly popular due to its brighter pink hue and resistance to scratches. On 1stDibs, shop a range of vintage rose gold jewelry.
  • 1stDibs ExpertApril 5, 2022
    A piece of jewelry or a decorative object marked 18K gold plated does likely contain real gold. The marking indicates that the item is metal under a layer of gold alloy that contains 75 percent gold and 25 percent other metal. On 1stDibs, shop a collection of expertly vetted gold jewelry.
  • 1stDibs ExpertOctober 30, 2024
    How much your 18K gold chain is worth depends on several factors. As a material, 18-karat gold typically fetches a higher price than 14-karat and 10-karat gold on the scrap market because it contains more pure gold. When selling a piece for scrap, the length, thickness and weight of your chain will determine how much you can expect to receive for it. It's also possible that your chain may be worth more than the going scrap rate due to its style, maker, age and other characteristics. Consequently, you may wish to have a certified appraiser or knowledgeable jeweler evaluate your jewelry before you sell it. On 1stDibs, shop a wide range of gold chains.
  • 1stDibs ExpertNovember 1, 2023
    The difference between 14K and 18K white gold stud earrings comes down to the content of the precious metal alloy. Stud earrings made of 14-karat white gold are 58.3% gold and 41.7% base metal, while 18-karat gold is 75% pure gold and 25% other metals. As a result, 14-karat white gold tends to be stronger and more resistant to scratching, and 18-karat gold will have a more noticeable warm-glowing yellow tinge. On 1stDibs, shop a range of white gold stud earrings.
  • 1stDibs ExpertFebruary 22, 2021
    The price of gold per gram fluctuates with the market for gold. Today, 18k gold is worth roughly $44 per gram.