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French Late 19th Century Gem-Set Fly Locket
Located in London, GB
A French late 19th century gem-set fly locket, the thorax an old cushion-cut diamond estimated to
Category

Antique 1890s French Art Nouveau Pendant Necklaces

Materials

Diamond, Emerald, Rock Crystal, Ruby, 18k Gold

Melie Jewelry Sword Snake Locket Necklace In 14K Gold With Diamond Ruby
By Melie Jewelry
Located in Levent, 34
Cognac Diamond, 0.03 ct Ruby Locket Necklace comes with a gold 50 cm chain. The Story Behind The shield
Category

2010s Turkish Modern Pendant Necklaces

Materials

Diamond, Ruby, Yellow Gold

Burmese Ruby and Diamond Locket
Located in Houston, TX
Beautiful Victorian Ruby and Diamond clear case back locket. Certified no heat Burma ruby
Category

Antique 1880s English Victorian Pendant Necklaces

Materials

Diamond, Ruby, 14k Gold, Silver

1867 Victorian English Ruby Diamond Gold Locket
Located in Beverly Hills, CA
five old cut Diamonds and six small cut Burma Rubies. The locket opens up to two frames with class
Category

Antique 1860s British Victorian Rope Necklaces

Materials

Diamond, Ruby, 15k Gold

La Cloche Emerald Ruby Diamond Gold Double Locket
Located in London, GB
A regal double locket with oval frame set with ruby and diamond and cabochon thumb piece emerald
Category

Antique Early 1900s French Edwardian Frames

Materials

Diamond, Emerald, Ruby, 18k Gold

Ruby and Diamond Gold Heart with Stars Locket
Located in Houston, TX
. The pear shaped ruby bale is trimmed in old European cut diamonds. The locket hangs from a 18kt yellow
Category

Antique 1890s French Victorian Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, Sterling Silver

19th Century French Gold Ruby Diamond Heart Locket Pendant
Located in Saint-Ouen, FR
18k yellow gold Heart locket pendant set with ruby and diamonds rose cut, with 18k yellow gold
Category

Antique Late 19th Century French Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold

Deakin Francis 9 Karat Yellow Gold Ruby Set Locket
By Deakin Francis
Located in Birmingham, West Midlands
DEAKIN & FRANCIS, Piccadilly Arcade, London This stunning 9ct gold locket features a ruby set
Category

Early 2000s British Contemporary Pendant Necklaces

Materials

Ruby, Gold, 9k Gold, Yellow Gold

Ruby and 18 Karat Gold Locket Pendant and Necklace
By Thesis Gems and Jewelry
Located in Berkeley, CA
Locket pendant - 18 karat reclaimed gold with a fine Mozambique ruby; and a diamond surprise on the
Category

2010s American Artisan Pendant Necklaces

Materials

Ruby, 18k Gold

Fabergé Essence Rose Gold Ruby Heart Surprise Locket
By Fabergé
Located in London, GB
product is available to ship to all 1stDibs destination countries. The Rose Gold Heart Surprise Locket is
Category

2010s British Pendant Necklaces

Materials

Diamond, Rose Gold

Antique Locket with a Mirror Set with Diamonds and Rubies, 19th Century
Located in Paris, FR
Ct) and rubies (total weight apx 0,35 Ct). Mirror inside the locket. Work from the 19th century
Category

Antique 19th Century Unknown Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold

Aida Bergsen 18 Karat Gold Diamond Garnet and Ruby Sunset Lumen Locket
Located in Istanbul, TR
universe is created.. The excuisite Sunset Lumen Locket is from Aida Bergsen's Umbra Collection. A fine
Category

2010s Chain Necklaces

Materials

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

Matsuzaki Pear-shaped Ruby Diamond Locket Pill Box Gold Pendant Beads Necklace
By Tsutomu Matsuzaki
Located in Tokyo, JP
for details. Ruby : 0.67ct / Diamonds : 0.27ct Beads Necklace : Ruby 48ct / K18WG with magnetic clasp
Category

2010s Japanese Artist Pendant Necklaces

Materials

Ruby, 18k Gold

Aida Bergsen 18 Karat Gold Diamond Ruby and Vitreous Enamel Dove s Nest Locket
Located in Istanbul, TR
The entirety of this locket has been hand carved in lost wax, set in 18k yellow gold with 0,33ct
Category

2010s Turkish Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, 22k Gold

Regency Regard Locket
Located in London, GB
15ct Gold heart' shaped Regard Locket on Prince of Wales chain 17inches long
Category

Antique Early 1800s British Regency Pendant Necklaces

Materials

Amethyst, Diamond, Emerald, Garnet, Ruby, 15k Gold

Antique Oval Locket Bee Design Comprised of Turquoise, Ruby and Pearl in 14kt
Located in New Orleans, LA
Antique oval locket with bee design. The bee is designed with a cabochon turquoise, two rubies for
Category

Antique Late 19th Century Unknown Victorian Pendant Necklaces

Materials

Pearl, Ruby, Turquoise, 14k Gold, Yellow Gold

Fabergé Essence Rose Gold Ruby Heart Surprise Locket, US Clients
By Fabergé
Located in London, GB
reveal a heart shaped ruby surprise inside. The bale of the locket contains 14 round brilliant cut
Category

2010s British Pendant Necklaces

Materials

Diamond, Rose Gold

Heart Locket Turquoise Ruby Forget Me Not in 18 Carat Gold, circa 1880-1910
Located in Kendal, GB
topped with four turquoise petals and a cabochon ruby in the centre. Turquoise is considered a stone of
Category

Antique 19th Century European Victorian Pendant Necklaces

Materials

Ruby, Turquoise, Gold

Fabergé Essence Rose Gold Red Lacquer Ruby Set Shoe Surprise Locket
By Fabergé
Located in London, GB
Surprise Locket opens to reveal a red lacquer and ruby set shoe surprise, set in 18 karat rose gold. The
Category

2010s British Pendant Necklaces

Materials

White Diamond, Rose Gold

French Enamel Multi Gem Locket
Located in New York, NY
French Heart & Anchor Shaped Locket Featuring Rubies, Diamonds & Sapphires. Reverse Features Black
Category

Antique Late 19th Century French Victorian Drop Necklaces

Materials

Diamond, Sapphire, Ruby, 18k Gold

Fabergé Essence Rose Gold Red Lacquer Ruby Set Shoe Surprise Locket US Clients
By Fabergé
Located in London, GB
and ruby set shoe surprise, set in 18 karat rose gold. The locket is 18mm and contains a diamond set
Category

2010s British Pendant Necklaces

Materials

White Diamond, Rose Gold

Jumbo Gemset Gold Calendar Locket
Located in New York, NY
Best ever calendar locket: Jumbo size, with names of months engraved. Each month is set with its
Category

Vintage 1930s American Pendant Necklaces

Materials

Alexandrite, Amethyst, Aquamarine, Diamond, Emerald, Garnet, Peridot, Ru...

Antique 18 Karat Yellow Gold Brooch/Locket Ruby, Diamond and Rose Cut Diamond
Located in Bangkok, TH
Ruby 7 pcs 1.07ct Center Diamond 1 pc .265ct Rosecut Diamond 7pccs .46ct
Category

Antique Early 19th Century British Art Nouveau Boxes and Cases

Gold Gemset Dear Purse Four-Picture Locket
Located in New York, NY
Fine figural "purse" locket. 14K yellow gold, with a "DEAR" (Diamond, Emerald
Category

Vintage 1940s American More Jewelry

Materials

Amethyst, Diamond, Emerald, Ruby, 14k Gold

Fabergé 18k Rose Gold Locket w/ Diamond Set Bail Ruby Set Shoe, US Clients
By Fabergé
Located in London, GB
availability in your region. The Rose Gold Locket is set in 18 karat gold and opens to reveal a ruby shoe
Category

2010s British Pendant Necklaces

Materials

Diamond, Rose Gold

Melie Jewelry Golden Compass Locket Necklace 14K Gold Diamond Gemstones
By Melie Jewelry
Located in Levent, 34
Blue Sapphire, 0.16 ct Ruby, 0.07 ct Emerald, Onyx. Locket Necklace comes with a gold 46 cm chain. The
Category

2010s Turkish Romantic Pendant Necklaces

Materials

Diamond, Emerald, Onyx, Ruby, Blue Sapphire, Rose Gold

Victorian French Rock Crystal Diamond Pearl Rare Locket Chain
Located in Napoli, IT
Victorian Marvel A very rare Victorian period locket pendant plus chain – French origin 1860/1880
Category

Antique 1860s French Victorian Pendant Necklaces

Materials

Diamond, Natural Pearl, Rock Crystal, Ruby, 14k Gold, 18k Gold

18 Karat Hand Blown Glass Large Lightkeeper Love Filament Locket Necklace
By James Banks
Located in Novato, CA
cursive in the center filament, filled with 50 black diamonds and 1 ruby, set in 18k yellow gold with a
Category

2010s American Contemporary Pendant Necklaces

Materials

Black Diamond, Ruby, 18k Gold

Georgian Ruby and Pearl Fede Ring
Located in New York, NY
clasp a central flower. The flower is made of a cluster of six pearls around a central ruby and has a
Category

Antique 1830s British Georgian More Rings

Materials

Pearl, Ruby, 18k Gold

Magnificent 18 Karat gold Mid Victorian Flat Garnet Padlock Boxed Full Necklace
Located in Napoli, IT
motifs dear at the time then enriched with table cut Natural Garnets of the most lively red Ruby colour
Category

Antique 1840s Victorian Chain Necklaces

Materials

Garnet, 18k Gold

Seiden Gang Diamond Ruby Locket Yellow Gold Necklace
By Seiden Gang
Located in Southampton, PA
18k Yellow Gold Diamond Ruby Locket Necklace by Seiden Gang. With 70x Diamonds VS1/G Color 1.00ctw
Category

20th Century American Drop Necklaces

Materials

Diamond, Ruby, 18k Gold

A Massive Gold, Diamond and Ruby Locket, c1880
Located in Cincinnati, OH
An Impressive Gold, Diamond and Ruby Locket. The 2 1/2" x 2 1/2" reversible yellow gold locket in
Antique Victorian Old Mine Diamond Ruby Locket Pendant 14 Karat Gold Star Flower
Located in New York, NY
a Ruby in a star and flower motif design. The locket is the most stunning warm brushed 14 Karat
Category

Antique 19th Century Unknown Victorian Pendant Necklaces

Materials

Diamond, Ruby, Gold, 14k Gold, Yellow Gold

Antique 2.80 Carat Ruby and 0.28 Carat Diamond Yellow Gold Heart Pendant Locket
Located in Jesmond, Newcastle Upon Tyne
anterior surface of the locket is further embellished with forty-nine claw set rubies, in a combination of
Category

Antique Early 1900s Unknown Pendant Necklaces

Materials

Diamond, Ruby, Yellow Gold

Antique 15ct Victorian Gold Ruby Diamond Glass Locket
Located in Brighton, GB
. Set with Old Cut Diamonds & Natural Calibrated Rubies. Locket Back, Filled With Pretty Petals- Could
Category

Antique Late 19th Century English Victorian Pendant Necklaces

Materials

Diamond, Ruby, Gold, 15k Gold

Vintage Tiffany Co Locket 14k Gold 4 Pages Diamond Ruby Pendant Fine Jewelry
By Tiffany Co.
Located in Torrance, CA
Finely detailed vintage Tiffany & Co diamond & ruby locket, crafted in 14 karat yellow gold (circa
Category

Early 20th Century American Retro Pendant Necklaces

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, Yellow Gold

Ruby Diamond Heart Locket
Located in San Francisco, CA
Ruby & Diamond 18Kt White Gold Heart Locket Pendant with hinged bail and back. There are 30 Round
Category

Unknown More Necklaces

Materials

Diamond, Ruby, 18k Gold

Victorian Locket with Pearl and Ruby
Located in New York, NY
An English Victorian 18 karat gold locket with seed pearls and rubies. The locket has 5 seed pearls
Category

Antique 1870s English Victorian Pendant Necklaces

Materials

Pearl, Ruby, 18k Gold

Large 14K Diamond Ruby Victorian Locket
Located in Chicago, IL
Carat, further set with an old cut Ruby. The inside of the Locket has a bezel only in one half.
Category

Antique Late 19th Century American Victorian More Jewelry

Materials

Diamond, Ruby, 14k Gold

Victorian Triple Locket Ruby Pearl Necklace
Located in Carmel-by-the-Sea, CA
crevasses of the checkerboard pattern created by the pearls are brilliant red rubies. The back of each
Category

Antique 1870s More Necklaces

Materials

Pearl, Ruby, 18k Gold, Yellow Gold

Antique Sapphire Ruby gold Locket Pendant
Located in Miami, FL
This classically timeless antique locket pendant is crafted in solid 18K yellow gold, weighs 8.5
Category

Antique Mid-19th Century Unknown Art Nouveau Drop Necklaces

Materials

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

Victorian Ruby and Pearl Heart Locket Necklace
Located in London, GB
Here we have a romantic ruby and pearl set locket necklace. This antique pendant has been crafted
Category

Antique 19th Century Pendant Necklaces

Materials

Pearl, Ruby

Victorian Ruby Diamonds Pearl Yellow Gold Locket
Located in Carmel-by-the-Sea, CA
Handmade Locket with 12 Cushion Cut Rubies, 12 Rose Cut Diamonds and Natural Pearls graduated in
Category

Antique Late 19th Century Victorian Drop Necklaces

Materials

Ruby, Natural Pearl, Diamond, 18k Gold

Antique Ruby Diamond Gold Star Locket Pendant
Located in Miami, FL
This alluringly refined rare antique locket pendant from the turn of the century (Ca 1900) is
Category

Antique Late 19th Century Unknown Victorian More Necklaces

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Victorian Ruby Pearl and Diamond Locket Pendant
Located in London, GB
Here we have a wonderfully oversized locket dating back to the Victorian era. This antique piece
Category

Antique 19th Century Victorian Pendant Necklaces

Materials

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

Antique Ruby Diamond Gold Chimera Locket Pendant
Located in Poitiers, FR
Locket pendant in 18 carat yellow gold, eagle head hallmark. This particularly original pendant
Category

Antique 19th Century French Pendant Necklaces

Materials

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

Antique Gold Locket Set with Rubies and Diamonds
Located in New York, NY
An antique gold locket inset with diamonds and calibre rubies, with two picture compartments, in
Category

Antique Late 19th Century Drop Necklaces

Materials

Ruby, Diamond, 18k Gold

Victorian Raised Lion Ruby Freemason Gold Locket 13.4dwt
Located in Narberth, PA
An exquisite and collectable double sided locket from the Victorian (ca1880) era. This stunning
Category

Antique Late 19th Century Victorian Necklace Enhancers

Materials

Ruby, 14k Gold

Victorian 9ct Gold Ruby And Pearl Heart Locket
Located in Portland, England
This charming antique Victorian heart ruby and pearl locket is crafted in 9ct yellow Gold. The
Category

Antique Late 19th Century Pendant Necklaces

Materials

Pearl, Ruby, Gold

Victorian Era Ruby Diamond Yellow Gold Starburst Locket
Located in Los Angeles, CA
A fine example of a Victorian era pendant locket. Composed of 15 karat yellow gold. 18 Rose Cut
Category

Antique Late 19th Century Unknown Victorian More Necklaces

Materials

Diamond, Ruby, 15k Gold

Victorian Ruby, Diamond, Pearl and Enamel Locket Pendant
Located in Carmel-by-the-Sea, CA
ruby, royal blue enamel and lustrous pearls. The bale is a charming three-dimensional golden bow and
Category

Antique 1880s Pendant Necklaces

Materials

Diamond, Pearl, Ruby, 18k Gold, Yellow Gold, Enamel

Victorian Ruby Pearl Locket 14 Karat Gold Pendant Necklace
Located in New York, NY
This is a rare and wonderful Victorian locket pendant with beautiful Ruby and Pearl adornments in
Category

Antique 19th Century Unknown Victorian Pendant Necklaces

Materials

Pearl, Ruby, Gold, Rose Gold, 14k Gold

Ruby and 14 Karat Yellow Gold Locket, 7.00 Carat
Located in New Orleans, LA
This delicate-yet-stunning locket is adorned by approximately 240 dazzling red ruby cabochons
Category

21st Century and Contemporary American Modern Pocket Watches

Materials

Ruby, 14k Gold, Yellow Gold

Art Nouveau Diamond Ruby 14 Karat Gold Locket Pendant
Located in Philadelphia, PA
Circular locket pendant designed depicting the profile of a woman wearing a headdress accented by
Category

Early 20th Century Unknown Art Nouveau Pendant Necklaces

Materials

Diamond, Ruby, 14k Gold

Napoleon III Oval Enamel and Ruby Medallion Locket Pendant
Located in Poitiers, FR
in black enamel set with 2 round rubies. The medallion locket opens with a side hinge to reveal a
Category

Antique 19th Century French Napoleon III Pendant Necklaces

Materials

Ruby, Gold, 18k Gold, Yellow Gold

Ruby, Cultured Pearl, Diamond Pendant and Locket, 14k Yellow
Located in New York, NY
This sophisticated pendant and locket, crafted in 14k yellow gold with a total weight of 23.60
Category

20th Century Pendant Necklaces

Materials

Diamond, Cultured Pearl, Ruby, 14k Gold, Yellow Gold

Heart Shaped Ruby and Diamond Locket in 18k on Chain
Located in Wailea, HI
Heart Shaped Ruby and Diamond Locket in 18k One Heart Shaped Ruby Weighing .50 Carats Approximately
Category

Late 20th Century Modern Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold

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Ruby Locket For Sale on 1stDibs

You are likely to find exactly the ruby locket you’re looking for on 1stDibs, as there is a broad range for sale. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and 14k Gold. You can easily find a 152 antique edition and 16 modern creations to choose from as well. You’re likely to find the perfect ruby locket among the distinctive items we have available, which includes versions made as long ago as the 18th Century as well as those produced as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but 3 Carat and 3.5 Carat versions are of considerable interest. Creating a ruby locket has been a part of the legacy of many jewelers, but those produced by Fabergé, Tiffany Co. and Karen Sugarman Designs are consistently popular. A ruby locket can be a stylish choice for most occasions, but Ruby rings, from our inventory of 125, can add a particularly distinctive touch to your look, day or night. A round cut version of this piece has appeal, but there are also old mine cut and brilliant cut versions for sale. Most of our ruby locket for sale are for women, but there are 46 pieces available to browse for men.

How Much is a Ruby Locket?

The price for a ruby locket starts at $495 and tops out at $24,803 with these necklaces, on average, selling for $3,600.

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.

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