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LB Exclusive 18 Karat Gold 0.50 Carat Diamond and Ruby Cross Pendant Necklace
By LB Exclusive
Located in Southampton, PA
This LB Exclusive necklace is made of 18K white gold and embellished with a 0.27 ct ruby and a
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, White Gold

Damiani Belle Epoque 18ct White Gold Ruby Diamond Cross on 18” Solid Chain
By Damiani
Located in London, GB
A stunning combination of a ruby cross pendant and a diamond cross pendant. The ruby cross pendant
Category

2010s British Modern Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, White Gold

18k Gold and Ruby Vintage Filigree Large Cross Pendant
Located in New York, NY
This 18k gold and ruby cross pendant is truly sensational. Large and designed entirely of detailed
Category

20th Century Pendant Necklaces

Materials

Ruby, 18k Gold

Late Edwardian Ruby Diamond Platinum Sacred Heart Cross Articulated Charm
Located in Philadelphia, PA
weighing approximately Opens on a hinge to reveal an articulated channel set ruby cross; completed by jump
Category

Vintage 1910s Edwardian Charm Bracelets

Materials

Diamond, White Diamond, Ruby, Platinum

Late Edwardian Ruby Diamond Platinum Sacred Heart Cross Articulated Charm
Located in Philadelphia, PA
weighing approximately Opens on a hinge to reveal an articulated channel set ruby cross; completed by jump
Category

Vintage 1910s Edwardian Charm Bracelets

Materials

Diamond, White Diamond, Ruby, Platinum

1.0tcw Unisex Natural Ruby Art Deco Gold Bezel Set Cross Pendant Solid Gold 14K
Located in Jupiter, FL
A remarkable natural red ruby cross, featuring numerous, pinkish-red rubies are displayed within
Category

2010s American Art Deco Pendant Necklaces

Materials

Ruby, 14k Gold, Yellow Gold

Antique No Heat Burma Ruby Diamond Gold Band Ring
Located in Aspen, CO
7 rubies cross the finger with approx. 4 cts. of natural Burma, no heat, ruby. Tiny diamonds fill
Category

Antique Early 1900s English Belle Époque Band Rings

Materials

Diamond, Ruby, 18k Gold

Petite Ruby and Diamond Cross
By H H Jewels
Located in Miami, FL
Petite Ruby and Diamond Cross- Only ten millimeters long this beautiful piece makes a big statement
Category

2010s American Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold

Asymmetrical Edwardian Ruby and Diamond Cross
Located in Carmel-by-the-Sea, CA
diamonds and rubies. The cross measures 1.25 inches including the length added by the bale and 1 inch wide
Category

Vintage 1910s Pendant Necklaces

Materials

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

Ruby Sapphire Gold Cross Gold Ring
Located in Banbury, GB
Beautiful 18k yellow gold bypass ring, featuring 7mm x 6 x 4mm sapphire and 7mm x 6.2 x 4mm ruby
Category

Vintage 1950s French Engagement Rings

Materials

Ruby, Sapphire, 18k Gold

Renato Cipullo Ruby and Diamond Cross Pendant
By Renato Cipullo
Located in Palm Beach, FL
Renato Cipullo Ruby and Diamond cross pendant set with rubies and single-cut diamonds, mounted in
Category

20th Century Drop Necklaces

Materials

Ruby, Diamond

Ruby and Diamond French Cross Pendant
Located in New Orleans, LA
This ornate French cross pendant joins pearls, rubies, and diamonds to absolute perfection. Four
Category

20th Century French Victorian Pendant Necklaces

Materials

Diamond, Pearl, Ruby, 18k Gold

Ruby and Diamond Cross-over Ring
By Marshall
Located in New York, NY
Sumptuous Asher cut Diamond - weighing approximately 1.25cts surrounded by fancy cut Rubies
Category

Vintage 1980s Unknown Contemporary Cocktail Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Ruby and Diamond White Gold Cross Pendant
Located in Jesmond, Newcastle Upon Tyne
An impressive vintage 0.15 carat ruby and 0.85 carat diamond, 18 karat white gold 'cross' pendant
Category

1990s Pendant Necklaces

Materials

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

Georgian Era Antique Ruby Diamond Cross Pendant, 1700s
Located in Chicago, IL
This rare 18th century gold (approximately 16.5K) and silver cross is embellished with rubies and
Category

Antique 18th Century Georgian Pendant Necklaces

Materials

Ruby

Belle Époque Antique Ruby and Diamond Cross Pendant
Located in Chicago, IL
Christ’s Blood shed on the Cross. The rubies are accented by two old mine cut diamonds. Estimated total
Category

Early 20th Century Edwardian Drop Necklaces

Materials

Ruby

Faux Ruby Diamond Bishop s Cross
Located in Culver City, CA
Ruby and diamond cross medallion, Italy, circa 1940. Comes fitted within original felt-lined
Category

Mid-20th Century Italian Religious Items

Materials

Multi-gemstone, Metal

Cartier Vizantija Cross Sapphire Ruby Emerald Gold Pendant
By Cartier
Located in Southampton, PA
18k Yellow Gold Vizantija Cross Sapphire, Ruby, and Emerald Pendant by Cartier. Stones: a. 4
Category

20th Century French More Jewelry

Materials

Emerald, Ruby, Blue Sapphire, 18k Gold

14 Karat Yellow Gold Ruby Diamond Cross Pendant
Located in McLeansville, NC
A vintage 14 karat yellow gold ruby and diamond cross pendant. This pendant features alternating
Category

Vintage 1970s Pendant Necklaces

Materials

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

Giorgio Visconti Ruby Diamond White Gold Cross Necklace
Located in Feasterville, PA
A chic Giorgio Visconti cross pendant necklace featuring rubies and round brilliant cut diamonds in
Category

Early 2000s Chain Necklaces

Materials

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

French Cut Diamond Cross Cut Ruby Platinum Band Ring
Located in New York City, NY
Unusual french cut diamond, cross cut ruby and platinum band. It features very high grade french
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Ruby, Platinum

Vintage French Cut Ruby Diamond Cross Pendant Necklace
Located in Narberth, PA
A beautiful Vintage cross necklace from the 1950s! The lovely piece is made of 18kt white gold and
Category

Vintage 1950s Art Deco Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold

Diamond Ruby Sapphire Emerald Yellow Gold Cross Pendant
Located in Southampton, PA
the appealing form of a cross is made of radiant 18K yellow gold and adorned with a tasteful blend of
Category

20th Century Unknown Pendant Necklaces

Materials

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

Antique Vibrant Peridot Pearl Ruby Gold Cross Pendant Necklace
Located in New York, NY
Beautiful and colorful antique 18k gold necklace, adorned with pearls, bright rubies, green
Category

Antique 19th Century Pendant Necklaces

Materials

Pearl, Peridot, Ruby, Gold

18 Karat White Gold Ruby and Diamond Cross Pendant
Located in Coral Gables, FL
18 Karat White Gold Cross Pendant Featuring 24 Round Rubies Totaling Exactly 0.78 Carats & 5
Category

2010s Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, White Gold

CARTIER Vizantija Cross Sapphire Ruby Emerald Yellow Gold Pendant
By Cartier
Located in Southampton, PA
18k Yellow Gold Vizantija Cross Sapphire, Ruby, and Emerald Pendant by Cartier. Stones: a. 4
Category

1990s French Necklace Enhancers

Materials

Emerald, Ruby, Sapphire, 18k Gold

Diamond Ruby Old Cut Gold Silver Cross Pendant
Located in Bad Kissingen, DE
- 925 Silver, partially gold-plated - Numerous old-cut diamonds - Dimensions: approx. 60 x 50 mm - Weight: approx. 19 gram Additional information The dimensions are approx. 60 x 50...
Category

Antique 1880s Unknown Classical Greek Pendant Necklaces

Materials

Diamond, Ruby, Silver

Modern Ruby Diamond 18 Karat Yellow Gold Cross Pendant
Located in Poitiers, FR
Cross in 18 karat yellow gold. Yellow gold cross, it is composed at each end and in its center of
Category

21st Century and Contemporary French Modern Pendant Necklaces

Materials

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

Ruby and White Diamond Cross Brooch Pendant in Platinum
Located in Los Angeles, CA
Beautiful ruby round and white diamond round brooch/pendant. Handmade in platinum. Good quality
Category

21st Century and Contemporary Brooches

Materials

White Diamond, Ruby, Platinum

Ruby and Diamond Cross Pendant in 14K Yellow Gold
Located in Towson, MD
One 14 karat yellow gold cross pendant set with seventeen (17) 2mm round rubies and four (4
Category

20th Century Modern Pendant Necklaces

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Tiffany Co. Schlumberger Ruby Yellow Gold Cross Pendant Necklace
By Tiffany Co.
Located in Southampton, PA
yellow gold and boasts a cross-shaped pendant set with ~1ct of rubies and diamonds. Approximate
Category

20th Century American Necklace Enhancers

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Rubies, Diamonds, Rose Gold and Silver Cross Pendant Necklace.
Located in Marcianise, Marcianise (CE)
Fantastic cross pendant necklace in 9 kt rose gold and silver structure mounted with rubies
Category

Vintage 1960s Italian Retro Pendant Necklaces

Materials

Diamond, Ruby, 9k Gold, Rose Gold, Silver

Rubies, Diamonds, Rose Gold and Silver Cross Pendant Necklace
Located in Marcianise, Marcianise (CE)
and silver structure studded with rubies surrounded by diamonds. The silver chain is included. This
Category

Vintage 1970s Italian Retro Pendant Necklaces

Materials

Diamond, Ruby, Rose Gold, Silver

Antique 18ct Gold Platinum, Edwardian Ruby Diamond Cross Pendant
Located in Brighton, GB
Antique Cross Pendant 18ct Gold & Platinum Tested Circa 1910 This is a stunning Edwardian cross
Category

Early 20th Century European Edwardian Pendant Necklaces

Materials

Diamond, Ruby, Gold, 18k Gold, Platinum

Cartier Vizantija Sapphire Ruby Emeral Cross Yellow Gold Pendant Brooch
By Cartier
Located in Southampton, PA
18k Yellow Gold Vizantija Cross Sapphire, Ruby and Emerald Pendant Brooch by Cartier. With 4
Category

1990s French More Jewelry

Materials

Emerald, Ruby, Sapphire, 18k Gold

Vintage 10 Karat Yellow Gold Ruby and Diamond Cross Pendant
Located in Washington Depot, CT
Vintage 10 Karat Yellow Gold Ruby and Diamond Cross Pendant- This lovely pendant features one
Category

20th Century Pendant Necklaces

Materials

Diamond, Ruby, Yellow Gold

3.85ct Natural Ruby Diamond Cross 14 Karat Gold 15 inch
Located in New York, NY
Natural Round Rubies & Diamond Cross. .30ct. Brilliant Round Cut Diamond Natural & Untreated Vs
Category

2010s American Pendant Necklaces

Materials

Diamond, Ruby, 14k Gold, White Gold

Cartier Vizantija Cross Sapphire Ruby Emerald Yellow Gold Pendant Necklace
By Cartier
Located in Southampton, PA
18k Yellow Gold Vizantija Cross Sapphire, Ruby, and Emerald Pendant And Chain Necklace by Cartier
Category

20th Century French Pendant Necklaces

Materials

Emerald, Ruby, Blue Sapphire, 18k Gold

Victorian Onyx, Ruby, Pearl Yellow Gold Cross w/ Original Box
Located in Carmel-by-the-Sea, CA
A extremely unique Victorian cross, boasting a carved onyx base with ruby and natural pearls set in
Category

Antique Late 19th Century Victorian Drop Necklaces

Materials

Ruby, Natural Pearl, Onyx, 18k Gold

Antique Sapphire Ruby Diamond Gold Cross Pendant
Located in Napoli, NA
Unique and wide Gold 12k and silver cross, set with 0,90 carat of rose cut diamond - 6 carat of
Category

Antique 1890s Late Victorian Pendant Necklaces

1980s Fred Paris Cross Over Sapphire Ruby Diamond Gold Ring
By Fred Paris
Located in New York, NY
Signed cross over Ring set with 8 full cut Diamonds and two faceted Ruby & Sapphire oval Stones
Category

Vintage 1980s French Contemporary Band Rings

Materials

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

.60 Carat Ruby Diamond Yellow Criss-Cross Gold Band Ring
Located in Stamford, CT
Ruby and diamond cross over band ring. 24 square cut rubies with 66 round diamonds in a 14k yellow
Category

21st Century and Contemporary Band Rings

Materials

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

Sapphire, Emeralds, Rubies, Diamonds, Gold and Silver Cross Pendant Necklalace
Located in Marcianise, Marcianise (CE)
Beautiful cross pendant necklace in 9 kt rose gold and silver structure mounted with a sapphire
Category

Vintage 1970s Italian Retro Pendant Necklaces

Materials

Diamond, Emerald, Ruby, Sapphire, 9k Gold, Rose Gold, Silver

WEMPE Ruby Diamond Cross Hatched 18k Yellow Gold Band Ring
By Wempe
Located in MIAMI, FL
ring is crafted in 18k yellow gold and highlights square cut ruby gemstones that are cross hatched in
Category

Late 20th Century German Contemporary Band Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Cartier Vizantija Emerald Sapphire Ruby Diamond Large Gold Cross Brooch Pendant
By Cartier
Located in Southampton, PA
18k Yellow Gold Vizantija Large Cross Sapphire, Ruby, Emerald and Diamond Pendant Brooch by Cartier
Category

20th Century French More Jewelry

Materials

Diamond, Emerald, Ruby, Sapphire, 18k Gold

Clarissa Bronfman Garnet, Diamond Skull, Ruby, Mother of Pearl Cross Rosary
By Clarissa Bronfman
Located in New York, NY
of pendant. Diamond hollow heart pendant with silver. Mother of pearl cross with rose cut diamond
Category

21st Century and Contemporary Unknown Contemporary Beaded Necklaces

Materials

Diamond, Garnet, Ruby, Silver

Cross Shield Ring, Mixed Metal Ruby and Black Onyx Ring
By Five Star Jewelry
Located in Austin, TX
significant. It has a gorgeous raised cross in the center with a ruby in the center and the outline of the
Category

21st Century and Contemporary American Art Deco Cocktail Rings

Materials

Onyx, Ruby, Sterling Silver, Mixed Metal, Copper

Diamond Ruby Pave Cross Pendant Necklace 18 Karat In Stock
Located in Boca Raton, FL
G/H in color and VS in clarity Gemstone Details: Approximately 1.60ctw of round cut Rubies Clasps
Category

21st Century and Contemporary American Pendant Necklaces

Materials

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

Vintage 14 Karat Yellow Gold Oval Ruby and Diamond Cross Pendant
Located in Addison, TX
14K Yellow Gold Oval Ruby and Diamond Cross Pendant The byzantine style cross pendant features
Category

21st Century and Contemporary Unknown Byzantine Pendant Necklaces

Materials

Diamond, Ruby, Yellow Gold, 14k Gold

Victorian French Antique Emerald Ruby Pearl 18 Karat Gold Cross Pendant
Located in Philadelphia, PA
Designed as a wire openwork cross form suspending from a navette-shaped surmount Centering a bezel
Category

Antique 1860s Victorian Pendant Necklaces

Materials

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

Verdura Black Jade Ruby Sapphire Pearl Diamond Maltese Cross Cuff Bracelet
By Verdura
Located in Bal Harbour, FL
Originally designed for Coco Chanel in the 1930's, the maltese cross cuff remains one of Verdura's
Category

21st Century and Contemporary American Cuff Bracelets

Materials

Diamond, Jade, Cultured Pearl, Ruby, Blue Sapphire, 18k Gold

Double Pear Shape Ruby and Diamond Cross Over Handmade Ring Platinum
Located in New York, NY
Double pear shaped diamond and ruby ring crafted in platinum with micro pave diamonds on the shank
Category

2010s American Modern Engagement Rings

Materials

Ruby, Yellow Gold, Platinum

Diamond and Ruby Yellow Gold Cross Pendant Necklace
By LB Exclusive
Located in Southampton, PA
This necklace is crafted from 14K yellow gold and set with rubies and with a 0.01ct diamond stone
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Yellow Gold

Vintage Tiffany Co. Vivid Red Ruby 18k Yellow Gold Cross Pendant Necklace
By Tiffany Co.
Located in Birmingham, GB
Vintage Tiffany & Co. Vivid Red Ruby 18k Yellow Gold Cross Pendant Necklace A beautiful and rare
Category

21st Century and Contemporary Pendant Necklaces

Materials

Ruby, Yellow Gold, 18k Gold, Gold

Art Nouveau French Medal Ruby Chain Necklace Silver Cross J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Art Nouveau French Medal in Bronze with a Ruby Set Gold Filled Chain Necklace and a small Silver
Category

2010s American Art Nouveau Chain Necklaces

Materials

Ruby, Gold-filled, Silver, Bronze

Georgios Collection 18 Karat Yellow Gold Ruby Sapphire Emerald Byzantine Cross
By Georgios Collections Inc
Located in Astoria, NY
S.Georgios Byzantine Style Cross Pendant is handmade from solid 18 Karat Yellow Gold and features 2
Category

21st Century and Contemporary Greek Byzantine Necklace Enhancers

Materials

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

Edwardian Diamond Ruby Pearl Platinum 18 Karat Gold Cross Pendant Necklace
Located in Philadelphia, PA
Edwardian cross pendant suspends from a contemporary 14 karat white gold cable chain - stamped
Category

Vintage 1910s Edwardian Pendant Necklaces

Materials

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

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Ruby Cross For Sale on 1stDibs

On 1stDibs, you can find the most appropriate ruby cross for your needs in our varied inventory. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and Yellow Gold. You can easily find a 113 antique edition and 142 modern creations to choose from as well. You’re likely to find the perfect ruby cross 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. Creating a ruby cross has been a part of the legacy of many jewelers, but those produced by Georgios Collections Inc, Cartier and LB Exclusive are consistently popular. A ruby cross can make for a versatile accessory, but a selection from our variety of 207 Ruby versions can add an especially stylish touch. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and brilliant cut cut versions available here, too. There aren’t many items for men if you’re seeking a ruby cross, as most of the options available are for women and unisex.

How Much is a Ruby Cross?

The price for a ruby cross starts at $99 and tops out at $180,000 with these necklaces, on average, selling for $2,647.

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.