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Antique Victorian 18K Yellow Gold Old Mine Diamond and Ruby Navette Ring
Located in Great Neck, NY
Rubies: Approximately 1 ct Measurements: Top of the ring measures 21.87 mm wide and band measures 2.1 mm
Category

Antique 1890s Victorian Engagement Rings

Materials

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

Antique Art Deco Platinum White Gold Diamond and Ruby Three Stone Ring
Located in Great Neck, NY
: Approximately 1 ct Color: H Clarity: SI1 Rubies: Approximately 1.20 cts No Heat Weight: 3.8 Grams Ring Size
Category

Vintage 1920s Unknown Art Deco Cluster Rings

Materials

Diamond, Ruby, White Gold, Platinum

Antique Art Deco Platinum White Gold Diamond and Ruby Three Stone Ring
Located in Great Neck, NY
: Approximately 1 ct Color: H Clarity: SI1 Rubies: Approximately 1.20 cts No Heat Weight: 3.8 Grams Ring Size
Category

Vintage 1920s Unknown Art Deco Cluster Rings

Materials

Diamond, Ruby, White Gold, Platinum

Jockey Necklace with Diamonds, Rubies, Emeralds Sapphires in 18K Yellow Gold
Located in Lucerne, CH
: 750 26 diamonds, F-G color, vs-si clarity, various cuts, tot. 1.20 ct. 1 ruby, trilliant cut, 0.80 ct
Category

21st Century and Contemporary European Modern Pendant Necklaces

Materials

Diamond, Emerald, Ruby, Blue Sapphire, Pink Sapphire, Sapphire, Gold, 18...

Antique Art Deco Bailey Banks and Biddle 18K Rose Gold Diamond and Ruby Band
By Bailey, Banks Biddle
Located in Great Neck, NY
Diamonds: Approximately .75 cts Color: H Clarity: VS2 Ruby: Approximately 1 ct Size: 6 Measurements
Category

Vintage 1920s Unknown Art Deco Cocktail Rings

Materials

Ruby, Rose Gold

1800 Ct 7 Layer Natural Aquamarine Bead Necklace 18/22 Kt Gold Designer Necklace
Located in New York, NY
aquamarine is approximately 4 ct There is one ruby approximately 1 ct CONDITION: Pre-owned METAL: 18/22 K
Category

Early 2000s Beaded Necklaces

Materials

Aquamarine, Diamond, Gold, 22k Gold

Italian multi gem Gold Flower Brooch
Located in Napoli, NA
approximately: emeralds 0.80 ct. ruby 1 ct sapphire 0.80 ct Gross weight: 11.2 gr. Measures: 1.42 in x 1.42
Category

Vintage 1970s Italian Brooches

Materials

Emerald, Ruby, Sapphire, 18k Gold

Art Deco Style 18kt Diamond Gemstones Pendant/Brooch
Located in Miami, FL
with 130 diamonds weighing approximately 1 ct & 53 gemstones, natural Sapphires, Ruby’s & Emeralds
Category

Vintage 1970s American Art Deco Brooches

Materials

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

Rosior one-off Aquamarine, Sapphire, Amethyst, Topaz and Diamond Cocktail Ring
By Rosior
Located in Porto, PT
; - 1 Amethyst with 4,03 ct; - 1 Yellow Beryl with 1,25 ct; - 1 Ruby with 0,16 ct; - 2 Sapphires with
Category

21st Century and Contemporary Portuguese Contemporary Cocktail Rings

Materials

Amethyst, Aquamarine, Diamond, Brown Diamond, Ruby, Sapphire, Topaz, Tou...

Retro Citrine 14K Rose Gold Cocktail Ring, circa 1940s
Located in Beverly Hills, CA
: Citrine = 60 ct. Gemstone: Burmese rubies totaling 1 ct. -- Diamonds totaling 0.35 ct. Circa: Retro, 1940s
Category

20th Century Cocktail Rings

Materials

Citrine, Rose Gold, Gold, 14k Gold

Antique Edwardian pendant with tourmalines, diamonds and pearls
Located in Chorzów, PL
by 32 diamonds (0.20 ct, colour: G-J, purity SI-I1) and 7 saltwater cultured pearls and 1 red ruby
Category

Vintage 1910s British Edwardian Pendant Necklaces

Materials

Diamond, Pearl, Tourmaline, Gold, 14k Gold

U Boat Stainless Steel White Diamonds Classico 40 Wristwatch
Located in Miami, FL
mm diameter - 0,14 ct.). Visible ruby. Bâton perforated indexes. Perforated bent hands, shiny
Category

2010s Italian Wrist Watches

Materials

Diamond, Stainless Steel

Dangle Earrings with ct 1, 76 Diamonds, Emeralds, ct 6, 58 Sapphires and Rubies
Located in Marcianise, Marcianise (CE)
Dangle Earrings in 14kt Rose Goldwith Diamonds, Emeralds, Blue Sapphires and Rubies Diamonds ct
Category

Vintage 1950s Italian Dangle Earrings

Materials

Diamond, Emerald, Ruby, Sapphire, 14k Gold

1 Ct Each Cushion Shape Treated Ruby 11 Ct Anniversary Eternity Band/Ring 14KWG
Located in New York, NY
Hand Made ring 1 Ct Each Cushion Shape Treated Ruby 11 Ct Anniversary Eternity Band/Ring 18KYG
Category

2010s Band Rings

Materials

Ruby, Gold, 14k Gold

1 Ct Each Cushion Shape Treated Ruby 13 Ct Anniversary Eternity Band/Ring 18KYG
Located in New York, NY
Hand Made ring 1 Ct Each Cushion Shape Treated Ruby 13 Ct Anniversary Eternity Band/Ring 18KYG
Category

2010s Band Rings

Materials

Ruby, Gold, 18k Gold, Yellow Gold

15 Carat Emerald Cut Treated Ruby 1 Ct Diamond Stud Earrings 14 Kt White Gold
Located in New York, NY
. Weight of 14 K gold 8.5 Grams Ruby pair 15 ct , Rubies are treated Emerald Cut Rubies weighing
Category

2010s Stud Earrings

Materials

Ruby, 14k Gold, White Gold

2.5 Carat Oval Treated Ruby 1 ct Diamond Ring 14 Karat White Gold Size 2.75
Located in New York, NY
Introducing a truly stunning piece, behold the 2.5 Carat Oval Treated Ruby & 1 ct Diamond Ring in
Category

2010s Cocktail Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

Diamond Ruby Statement Ring18k Gold 2.93 Ct Women Certified
Located in Brooklyn, NY
SIZABLE DIAMONDS: 22 ROUND BRILLIANT DIAMONDS (0.85 CT) COLOR: RED 1 COMPOSITE RUBY GEMSTONE (2.08 CT
Category

2010s American Modern Fashion Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

3.5 Carat Ruby 1 Carat Diamond Hanging / Dangling Earrings 14 Karat White Gold
Located in New York, NY
Approximately 3.5 Carats of two Emerald cut Ruby and 1 Ct Diamond Hanging Earrings 14 K
Category

2010s Dangle Earrings

Materials

Diamond, Ruby, 14k Gold

19 Carat Ruby 1 Carat Diamond Affordable Tennis Bracelet 14 Karat Yellow Gold
Located in New York, NY
Treated. The weight of the Ruby is 19 Carat , Each ruby is approximately 1 ct , measuring 5X7 MM Each Ruby
Category

2010s Tennis Bracelets

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Emerald Cut 5 Carat Treated Ruby and 1 Carat Diamond 14 Karat Yellow Gold Ring
Located in New York, NY
Diamond Baguettes approximately 1 ct Its a treated ruby prong set 14 Karat Yellow Gold: 6 gram Ring Size
Category

2010s Solitaire Rings

Materials

Ruby, Diamond, Yellow Gold, 14k Gold

Oval 8 Carat Treated Ruby and 1 Carat Diamond 14 Karat Two Tone Gold Ring
Located in New York, NY
Size 7.5 Diamond Brilliant cut approximately 1 ct , Its a treated ruby prong set 14 Karat Rose Gold
Category

2010s Solitaire Rings

Materials

Diamond, Ruby, 14k Gold

Ruby and Gold Well Made Band-Ring
Located in Aspen, CO
weighing an approximate amount of slightly less than 1 ct. The natural rubies are all clean, bright and
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Ruby, Gold, 14k Gold

Antique Peridot, Ruby and Diamond Pendant, circa 1870
Located in Aspen, CO
Rose cut and old mine cut diamonds are set with rubies (approximately 1 ct.) and centers two fine
Category

Antique 19th Century Unknown Victorian Drop Necklaces

Materials

Diamond, Peridot, Ruby, 14k Gold, Sterling Silver

Sapphire, Diamond and Ruby Bangle in 18k Yellow Gold, circa 1970s
Located in Beverly Hills, CA
totaling 6 ct. Gemstone: Diamonds totaling 1 ct., G / VS-2 / Rubies totaling 1.25 ct. Circa: 1970s Stamp
Category

20th Century Bangles

Materials

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

Antique Art Deco Platinum Square Cut Ruby Eternity Wedding Band
Located in Great Neck, NY
: Approximately 1 ct Measurements: Top of the ring measures 2.6 mm wide and band measures 2.6 mm wide
Category

Antique Early 19th Century Unknown Art Deco Band Rings

Materials

Ruby, Platinum

Vintage Circa 1970s 14k Gold Natural Rose Cut Diamond And Ruby Drop Earring
Located in Fatih/İstanbul, 34
color and s1 clarity. Totally is ruby 1 ct. The box is not included. Please contact for any questions.
Category

Vintage 1980s European Retro Drop Earrings

Materials

Diamond, Ruby, 14k Gold

Ring with Aquamarine, Rubies Diamonds in 18 Karat White Gold by Gübelin
By Gubelin
Located in Lucerne, CH
beauty. Makers Mark: Gübelin GEM: 1 aquamarine, 3.00 ct. GEM: 14 rubies, 1.50 ct. DIA: 12 cut 8/8
Category

20th Century Swiss Art Deco Cocktail Rings

Materials

Aquamarine, Diamond, Ruby, Gold, 18k Gold, White Gold

18 Karat Blackened White Gold Serpent Pin Pendant with Emerald, Diamonds Ruby
By Campanelli Pear
Located in Troy, MI
ruby = 0.01 ct. This piece can be worn on a chain as a pendant as a single earring or as a pin for
Category

21st Century and Contemporary American Contemporary Brooches

Materials

Diamond, Emerald, Ruby, 18k Gold, White Gold

1.0 Carat, 7 Stone Ruby Diamond Traditional Men s Ring 14 Karat Y Gold Ring
Located in New York, NY
Diamonds : Approximately 0.15, meaning one 15 pointer in the middle 6 ruby approximately 1 ct Origin Burma
Category

Early 2000s Engagement Rings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

18K Rose Gold Hummingbird Colored Diamond Pendant Necklace with Blue Sapphires
By Althoff Jewelry
Located in Hong Kong, HK
Sapphires - 0.11 CT 1 Ruby - 0.06 CT 18K Rose Gold - 8.99 GM Our hummingbird pendant is lively and unique
Category

21st Century and Contemporary Hong Kong Modern Pendant Necklaces

Materials

Diamond, Garnet, Ruby, Blue Sapphire, Pink Sapphire, 18k Gold, Rose Gold

Horse Pendant Diamonds, Emeralds 18 Karat Gold
Located in Bad Kissingen, DE
18k yellow gold Hallmarked with fine content 750 0,70 ct emeralds 0,19 ct diamonds 1 Ruby eye
Category

2010s Unknown Pendant Necklaces

Materials

Diamond, Emerald, 18k Gold

18K Rose Gold Multi-Color Sapphire Bird Garden Ring with Diamonds
By Althoff Jewelry
Located in Hong Kong, HK
158 Diamonds - 0.78 CT 13 Green Garnets - 0.17 CT 14 Pink Sapphires - 0.32 CT 1 Rubies - 0.02 CT 18K
Category

21st Century and Contemporary Hong Kong Modern Fashion Rings

Materials

Diamond, Sapphire, Rose Gold

Mozafarian Spinning Marguerite Pendant with Ruby Heart
Located in London, England
A collaboration between Mozafarian and Katarina Tarazi, the Marguerite Pendant features a 1 ct ruby
Category

21st Century and Contemporary European Artisan Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Bracelet Yellow Gold Ruby
Located in PARIS, FR
diamonds of approximately 0.01 ct each. 1 ruby 0.48 ct. width of the bracelet: 0.52 cm. interior diameter
Category

20th Century French More Bracelets

Materials

Ruby, Yellow Gold

Ruby and Diamond Ring
Located in New York City, NY
Magnificent Ruby and diamond ring. The main stone weighing 16.13 cts set in 14kt gold with appx 1
Category

20th Century American Cluster Rings

Materials

Ruby, Diamond, 14k Gold

Ruby Diamond Tassel Drop Earrings
By Knauf Jewels
Located in Wiesbaden, DE
Ruby and Diamond Tassel Earrings 154 diamonds ca 1 ct 30 strings with ruby beads ca 80ct 18 karat
Category

2010s German Contemporary Dangle Earrings

Materials

Diamond, Ruby, 18k Gold

White Gold Yellow Gold Diamonds Round Rubies Pear Cut Ruby Pendant "Scull"
Located in Moscow, RU
ct, 4 pear cut diamonds, 0,59 ct, 43 round rubies 0,23 ct, 1 pear cut ruby, 0,51 ct, pigeon blood
Category

2010s Russian High Victorian More Jewelry

Materials

Diamond, Ruby, 18k Gold, White Gold

14K Ruby Diamond Cocktail Ring Size 7 Square Step Cut Ruby 0.19ct Single
Located in Holtsville, NY
: Square Step Cut Ruby (0.19 ct) * Stone Count: 1 Ruby, 20 Diamonds * Diamond Carat Weight: 0.08 ct * Ruby
Category

2010s American Artist Cocktail Rings

Materials

Diamond, Ruby, 14k Gold

Art Deco Ruby and Diamond Ring
Located in New York, NY
18kt shank with approximately 1/2 ct of caliber cut rubies and approximately 1 ct of diamonds set
Category

Early 20th Century American Art Deco Cocktail Rings

Materials

Ruby, Platinum

18 Karat Yelöow Gold Diamonds, Ruby, Emeralds Necklace
By Gianni Lazzaro
Located in Duesseldorf, DE
18 Karat Yelow Gold Diamonds, Ruby, Emeralds Neclas Diamonds 1.50 ct. 1 Emerald Cab. 7.03 ct
Category

21st Century and Contemporary German Pendant Necklaces

Materials

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

Van Cleef Arpels Pear Shape Ruby and Diamond 18 Karat Yellow Gold Ring
By Van Cleef Arpels
Located in Miami, FL
. 1.50 ct, 1 Pear Shape Ruby = 7.3 x 5 x 1.6 mm = 0.75 ct Ring Size: 5.75 (US) Total Item Weight (grams
Category

1990s Cocktail Rings

Materials

Diamond, Ruby, Yellow Gold

1950s Pink Cabochon Coral, Rubys, Enamel 14 Karat Gold Cocktail Fashion Ring
Located in Pamplona, Navarra
, magnificent oval shaped ring is artful adorned with 12 rubys ( 1 ct) displayed on blue enamel leaves (3 of
Category

Vintage 1950s Unknown Retro Cocktail Rings

Materials

Coral, Ruby, 14k Gold, Yellow Gold, Enamel

Antique 0.25 Carat Diamond Ruby and Sapphire Three Stone Gold Ring, circa 1890
Located in Goettingen, DE
), 1 oval sapphire 0.59 ct & 1 ruby ​​0.47 ct 10 Diamond roses Size ring head 19.25 mm long Ring size
Category

Antique 1890s French Victorian Three-Stone Rings

Materials

Diamond, Ruby, Sapphire, Gold, 18k Gold, Silver

Cartier-style art deco aquamarine, diamond, ruby ring
Located in New York, NY
1.65 ct total) and natural rubies (approx 1 ct total).
Category

French Cocktail Rings

Sterling silver dragon pendant w/ rubies diamond on sterling silver rope chain
Located in Surfside, FL
Dragon Pendant in sterling silver with approx 1 ct of rubies and 2.5 cts of diamonds on a sterling
Category

20th Century Pendant Necklaces

Materials

Sterling Silver

Outstanding Van Cleef Arpels Brooch and Earring Suite
By Van Cleef Arpels
Located in Lambertville, NJ
cts. The pair of opposing earrings are set with an additional 1.25 cts.of diamonds and 1 ct. of rubies
Category

Vintage 1950s French Brooches

Materials

Diamond, Ruby, 18k Gold

For Winning Republicans
Located in Atlanta, GA
headress. The diamonds in the headdress are large for pave', mostly 1/5 ct to 1/4 ct rounds, and the rubies
Category

20th Century American Brooches

Materials

Diamond, Emerald, Ruby, 18k Gold

Mandarin Garnet Diamond Rose Gold Coronaria Ring Necklace Cuff Bracelet Brooch
By Alex Soldier
Located in New York, NY
carat weight: 16 ct. Black Diamonds: 48 stones, total carat weight: 6 ct. Ruby: 1 stone, total carat
Category

2010s American Cocktail Rings

Materials

Diamond, White Diamond, Black Diamond, Brown Diamond, Garnet, Ruby, Gold...

Monseo Rose Gold Sapphire, Ruby, Emerald and Diamonds Band
By Monseo
Located in Porto, PT
19.2K pink gold ring with 98 brilliant cut diamonds with 0.27 ct. 1 emerald with 0.21 ct. 3 rubies
Category

21st Century and Contemporary Portuguese Contemporary Band Rings

Materials

White Diamond, Emerald, Ruby, Blue Sapphire, Tsavorite, Gold, 18k Gold, ...

French Ruby Diamond Gold Pendant Qu Hier Que Demain by A. Augis Large Size
By A. Augis
Located in Dallas, TX
bezel, body and in the bail. Bail has fine edge detail. 18K yellow gold. Four diamonds 0.04 ct. VS-1
Category

Vintage 1960s French Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold

Friedrich Flexible Chain-Link Diamond Ring with Gem Hearts
By Friedrich Boutique
Located in Frankfurt, DE
, G/vs1, with three heart-shaped pendants: 1 Diamond heart 0.34 ct., G/vs2, 1 Ruby heart, 0.63 ct
Category

21st Century and Contemporary German Fashion Rings

Materials

Diamond, Garnet, Ruby, 18k Gold

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1 Ct Ruby For Sale on 1stDibs

Surely you’ll find the exact 1 ct ruby you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Every item for sale was constructed with extraordinary care, often using Gold, Yellow Gold and 18k Gold. Our collection of these items for sale includes 339 vintage editions and 416 modern creations to choose from as well. Making the right choice when shopping for a 1 ct ruby may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 19th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. 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. There have been many well-made iterations of the classic 1 ct ruby over the years, but those made by LB Exclusive, Cellini and Van Cleef Arpels are often thought to be among the most beautiful. 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 oval cut and cushion cut alternatives. Most of our 1 ct ruby for sale are for women, but there are 233 pieces available to browse for men.

How Much is a 1 Ct Ruby?

The price for a 1 ct ruby starts at $154 and tops out at $960,000 with these rings, on average, selling for $4,578.

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 1 Ct Ruby
  • 1stDibs ExpertOctober 12, 2021
    What a 1-carat ruby is worth mostly depends on the color of the ruby. It is the most important factor in determining the ruby's value. The price of a pure brilliant red to slightly purple-red color is considerable. Depending on the color, purity, origin, and size, rubies can cost anywhere from $100 to $15,000 per carat. Shop a range of antique and vintage ruby jewelry on 1stDibs.