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Ruby Dress Set

Tiffany & Co. 14K Gold and Ruby Dress-Set Cufflinks, Circa 1945
By Tiffany & Co.
Located in Perry, FL
Vintage Tiffany & Co. 14K Gold and Ruby Dress-Set with Baton Cufflinks Circa 1945 Cufflinks, each
Category

21st Century and Contemporary Cufflinks

Materials

Ruby, 14k Gold

Tiffany & Co Ruby and Gold Dress set
By Tiffany & Co.
Located in New York, NY
Tiffany & Co Ruby and Gold Dress set This dress set has a pair of cufflinks and three shirt studs
Category

21st Century and Contemporary American Artist Cufflinks

Materials

Ruby, 18k Gold

Cartier Ruby and Platinum Dress Set, circa 1950
By Cartier
Located in London, GB
A Cartier ruby and platinum dress-set, comprising a pair of cufflinks, four buttons and two studs
Category

Vintage 1950s British Retro Cufflinks

Materials

Ruby, Platinum

Art Deco Gold, Ruby And Enamel Dress-Set, Circa 1930
Located in London, GB
An Art Deco ruby, white gold and enamel dress set, comprising a pair of cufflinks, four buttons and
Category

Vintage 1930s Unknown Art Deco Cufflinks

Materials

Ruby, 18k Gold

Tiffany & Co. Star Ruby, Diamond and Platinum Dress-Set, Circa 1950
By Tiffany & Co.
Located in London, GB
A Tiffany & Co., vintage, ruby and diamond dress-set, comprising of a pair of cufflinks and three
Category

Vintage 1950s American Retro Cufflinks

Materials

Diamond, Star Ruby, Platinum

Sasha Primak 18kt WG Ruby 2.99ct & Diamond 2.60ct Cuff Links/Studs Dress Set
By Sasha Primak
Located in New York, NY
diamond dress set is a perfect example of his unique style. The square cuff links are masterfully set with
Category

Early 2000s American Modern Cufflinks

Materials

Diamond, Ruby, 18k Gold, White Gold

White Gold Ruby & Diamond Set Ring
Located in Mayfair, London, London
A ruby and diamond dress ring set in 18k white gold. The ring is composed of 18 princess cut rubies
Category

21st Century and Contemporary British Fashion Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

White Gold Ruby & Diamond Set Ring
White Gold Ruby & Diamond Set Ring
$2,408 Sale Price
31% Off
Mellerio ruby and diamond dress ring, French, circa 1945.
By Mellerio dits Meller
Located in London, GB
Mellerio ruby and diamond dress ring. Set to centre with an oval old cut natural unenhanced Burmese
Category

Vintage 1940s French Cocktail Rings

Materials

Diamond, Ruby, Yellow Gold, Platinum

Moi Rosa Gold Tahitian Pearl Diamond and Ruby Pendant Necklace
Located in Lawrenceville, GA
that! Handcrafted in gold, the necklace features a dagger-like pendant dressed in rubies, with diamond
Category

21st Century and Contemporary Indian Pendant Necklaces

Materials

Diamond, Pearl, Ruby, 14k Gold, 18k Gold

Onyx Ruby Diamond Gold Casino Dress Set
Located in New York, NY
This playful late 20th century cufflink and four-stud dress set by renown jewelry designer Lucy
Category

20th Century British Art Deco Cufflinks

Materials

Diamond, Onyx, Ruby, 18k Gold

Recent Sales

Ruby Platinum Dress Set, circa 1940
Located in Munich, DE
geometric design. The 56 ruby carrés are set invisible (in total approximately 3 ct.). Platinum hallmarked.
Category

Mid-20th Century Cufflinks

Materials

Ruby, Platinum

A Set Of Three Diamond And Gem Set Dress Sets
Located in Greenwich, CT
An Extraordinary Art Deco dress set, three sets of open scroll design with a central triangular cut
Category

Early 20th Century Art Deco Cufflinks

Materials

Ruby, Sapphire, Emerald, Diamond, Platinum

Circa 1890 Antique Ruby Seed Pearl 18 Karat Gold Dress Engagement Band Ring
Located in Perth, AU
Stylish ruby and seed pearl dress ring set in 18ct gold with 3 oval facetted rubies and 26 seed
Category

Antique 1890s British Victorian Band Rings

Materials

Pearl, Ruby, 18k Gold

Platinum Art Deco Ruby and Diamond Engagement Ring
Located in Perth, AU
Very smart platinum art deco ruby and diamond dress ring set with a centre diamond (early modern
Category

Vintage 1920s British Art Deco Engagement Rings

Materials

Diamond, Ruby, Platinum

Platinum Art Deco Ruby and Diamond Engagement Ring
Located in Perth, AU
Very smart platinum art deco ruby and diamond dress ring set with a centre diamond (early modern
Category

Vintage 1920s British Art Deco Engagement Rings

Materials

Diamond, Ruby, Platinum

Aletto Brothers Invisible-Set Ruby Dress Set
By Aletto Brothers
Located in New York, NY
Unique invisibly set style ruby dress set by Aletto Bros., designed as a calibre-cut ruby square
Category

Late 20th Century American Cufflinks

Materials

Ruby, 18k Gold

VAN CLEEF & ARPELS Diamond Ruby Dress Set
By Van Cleef & Arpels
Located in Firenze, IT
Comprising a pair of cuff links, each double-link centering upon a cabochon ruby within a circular
Category

Vintage 1950s French Cufflinks

Materials

Diamond, Ruby, 18k Gold

David Webb 18 Karat Yellow Gold Black Enamel Ruby Dress Set Cufflinks and Studs
By David Webb
Located in New York, NY
David Webb Black Enamel 18 Karat Gold Ruby Dress Set 1970's Comprising a pair of cufflinks and
Category

Vintage 1970s American Modern Cufflinks

Materials

Ruby, Yellow Gold, Enamel

Ruby Enamel Silver Dress Set
Located in London, England
A fantastic contemporary dress set detailed with cream and red fine enamel work. The centre is set
Category

2010s British Art Deco Cufflinks

Materials

Ruby, Silver

Buccellati Ruby, Emerald, Sapphire Gold Dress Set
By Buccellati
Located in Bal Harbour, FL
Very rare Buccellati dress set featuring a mixture of rubies, emeralds and sapphires. The stones
Category

Late 20th Century Italian Cufflinks

Materials

Emerald, Ruby, Blue Sapphire, 18k Gold

French Art Nouveau Ruby and Gold Serpent Dress Set
Located in New York, NY
A French Art Nouveau 18 karat gold dress set with rubies. This dress set has double sided cuff
Category

Antique Early 1900s French Art Nouveau Cufflinks

Materials

Ruby, 18k Gold

Diamond and Ruby Dress Ring
Located in Mayfair, London, London
An 18k yellow gold diamond and ruby dress ring. The ring is set with 9 diamonds on one side and 15
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Deakin & Francis Sterling Silver Pirate Skull Dress Stud Set with Ruby Eyes
By Deakin & Francis
Located in Firenze, IT
if the jaw is rattled! The set contains four dress studs and matching cufflinks. The full dress
Category

21st Century and Contemporary British Contemporary Cufflinks

Materials

Ruby, Sterling Silver

Piaget Dress Watch Women's 18k Yellow Gold Champagne Dial Ruby & Diamond Set
By Piaget
Located in Mayfair, London, London
yellow gold bezel set with 20round brilliant-cut rubies and 4 round brilliant cut diamonds, an 18k yellow
Category

21st Century and Contemporary Wrist Watches

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Etruscan Inspired Ruby and Diamond Dress Ring Set in 18k Yellow Gold
Located in London, England
A highly unique Etruscan inspired ruby and diamond dress ring, set in 18k yellow gold. The ring is
Category

2010s Modern Fashion Rings

Materials

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

Art Deco Inspired Ruby and Diamond Target Engagement Dress Ring Set in Platinum
Located in London, England
A beautiful Art Deco inspired ruby and diamond target engagement / dress ring set in platinum
Category

2010s British Art Deco Engagement Rings

Materials

Diamond, Ruby, Platinum

Ruby and Diamond Etruscan Cocktail Dress Ring Set in 18 Karat Yellow Gold
Located in London, England
A beautiful diamond and ruby Etruscan inspired dress ring set in solid 18k yellow gold. The ring
Category

2010s British Etruscan Revival Cocktail Rings

Materials

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

3 Row Channel Set Dress Ring 0.50ct of Diamonds in 14ct Gold Ruby & Diamond
Located in London, GB
This beautiful diamond dress ring is crafted from 14ct gold and set with a 0.50ct ruby and 0.50ct
Category

2010s British More Rings

Materials

Diamond, Ruby, Gold, 14k Gold

Art Deco Ruby, Diamond and Mother of Pearl Cufflink and Shirt Stud Dress Set
Located in London, England
A beautiful Art Deco cufflink and shirt stud dress set, set with diamonds, rubies and mother of
Category

Vintage 1920s British Art Deco Cufflinks

Materials

Diamond, Pearl, Ruby, Gold, Platinum

18ct White Gold Ruby & Diamond Dress Ring Set With 0.67ct Mix Shapes Diamonds
Located in London, GB
combination of 0.67 carats of mixed shapes diamonds and 4 natural oval rubies. This exquisite piece of
Category

2010s British Art Deco Cocktail Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

DAVID WEBB Enamel Gold Dress Set
By David Webb
Located in Chicago, IL
Whimsical Fish Tuxedo Dress Set by David Webb in 18K yellow Gold and Blue Guilloche Enamel. The
Category

1990s American Cufflinks

Materials

Ruby, 18k Gold

Vintage Ruby and Diamond Dress Ring in 18k Yellow Gold
Located in London, England
A beautiful vintage ruby and diamond dress ring set in 18k yellow gold. This unique piece is
Category

1990s Cocktail Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Art Deco Yellow Gold and Ruby 5-Piece Set
Located in Lexington, KY
bright rubies. The dress set has a Tiffany-inspired pattern and would look exceptional with a white shirt
Category

Vintage 1940s Art Deco Cufflinks

Materials

Ruby, 14k Gold, Yellow Gold

Retro Diamond and Ruby Ladies Dress/Cocktail Swiss Watch in 14 Karat Rose Gold
Located in London, GB
Vintage retro 1950's diamond and ruby set ladies dress/cocktails watch in 14K rose gold. Mechanical
Category

Vintage 1950s British Retro Wrist Watches

Materials

White Diamond, Ruby, Rose Gold

Ruby and Sapphire Bombe Ring Set in 18 Karat Yellow Gold and Platinum
Located in London, England
A highly unique ruby and sapphire bombe dress ring set in 18k yellow gold and platinum. The ring
Category

Vintage 1980s Unknown Retro Cocktail Rings

Materials

Ruby, Sapphire, Gold, 18k Gold, Yellow Gold, Platinum

Platinum Ruby & Diamond Ring 1.30ct
Located in Mayfair, London, London
A timeless platinum ruby and diamond dress ring. Set to the centre in a bezel mount is a
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Ruby, Platinum

Cartier by LeCoultre Ladies Yellow Gold Bracelet Watch
By Cartier
Located in Long Beach, CA
FACTORY / HOUSE: Cartier by Le Coultre / Ruby Set Bracelet Dress Watch STYLE / REFERENCE: Art Deco
Category

Mid-20th Century French Wrist Watches

Peter Suchy Men's Ruby Gold Cufflink Dress Set
By Peter Suchy
Located in Stamford, CT
Peter Suchy 18k yellow gold cuff links and shirt stud set with extra fine bright red Rubies. The
Category

Early 2000s Cufflinks

Materials

Ruby, Gold, 18k Gold, Yellow Gold

David Webb Enamel Ruby Gold Frog Gentleman's Dress Set
By David Webb
Located in Darnestown, MD
The David Webb set depicts his iconic enamel frog motif. The set consists of cufflinks and four
Category

Vintage 1980s American Cufflinks

Materials

Ruby, 18k Gold

Ruby Sapphire Gold Cuff Links and Shirt Studs Dress Set
Located in San Francisco, CA
18k yellow gold set of swivel cuff links and 3 shirt studs designed with cabochon rubies and
Category

Late 20th Century Cufflinks

Materials

Blue Sapphire, Ruby, 18k Gold

Unworn Audemars Piguet Ruby and Diamond Set Ladies Dress Wristwatch Original Box
By Audemars Piguet
Located in Mayfair, London, London
An Unworn 18k White Gold Piece Unique Diamond and Ruby Set NOS Ladies Dress Wristwatch, pave
Category

21st Century and Contemporary Unknown Wrist Watches

Materials

Diamond, Ruby, White Gold

Classic Four Button Dress Set in 14k Yellow Gold with Ruby Centers
Located in Palm Beach, FL
This classic, Mid-20th Century 14K yellow gold four button stud set was designed with a sunburst
Category

Mid-20th Century American Modern Cufflinks

Materials

Ruby, 14k Gold, Yellow Gold

David Webb Lion's Head Men's Cufflinks and Tuxedo Studs
By David Webb
Located in New York, NY
, with rubies for the eyes. This dress set is perfect for men who are both fierce and fashionable.
Category

21st Century and Contemporary American Cufflinks

Materials

Ruby, 18k Gold

Tiffany & Co. Yellow Gold Ruby Dress Set
By Tiffany & Co.
Located in Greenwich, CT
Men's dress set, composed of a pair of leverback cufflinks with three matching shirt studs, each
Category

Late 20th Century American Cufflinks

Materials

Ruby, 18k Gold, Yellow Gold

Aletto Brothers Invisibly-Set Ruby and Gold Dress Set
By Aletto Brothers
Located in Atlanta, GA
An 18 karat yellow gold and ruby dress set by Aletto Brothers, comprising a pair of cufflinks and
Category

20th Century American Cufflinks

Materials

Ruby, 18k Gold

18k Ruby and Diamond Dress Set
Located in Houston, TX
18k and Platinum Calibre Cut Ruby and Diamond Cufflink and Stud Set.
Category

American Cufflinks

Materials

Diamond, Ruby

Art Deco Ruby and Diamond Dress Set
Located in Beverly Hills, CA
This Art Deco cuff link set is made of 18 karat white gold, 7 carats of star rubies and 2 carats of
Category

American Cufflinks

Materials

Ruby, Diamond, 18k Gold

Cartier Ruby Yellow Gold Gentleman's Dress Set
By Cartier
Located in Houston, TX
Classic and Elegant Cuff Links and Studs. We can make a fourth stud if desired.
Category

Vintage 1980s French Cufflinks

Materials

Ruby, 18k Gold

Diamond, Ruby and Black Onyx Enameled Frog Dress Set
Located in San Francisco, CA
Fit for a prince, this amphibian themed dress set is comprised of a pair of cuff links and four
Category

21st Century and Contemporary Contemporary Cufflinks

Materials

Diamond, Ruby, Onyx, 18k Gold

Lady's Gem Set Diamond Gold Lizard Design Dress Ring
Located in Malvern, Victoria
A rhodium-plated gold ring depicting a Gecko, set with Ruby eyes, garnets and diamonds. Size M 1
Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, Garnet, Ruby, Rhodium

David Webb Green Enamel Ruby Gold Frog Cufflinks Stud Dress Set
By David Webb
Located in Lambertville, NJ
18k gold classic David Webb cufflinks and studs set, featuring frogs , decorated with green enamel
Category

20th Century American Cufflinks

Materials

Ruby, 18k Gold

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Tiffany & Co Aria Diamond Cultured Pearl Platinum Necklace
By Tiffany & Co.
Located in Southampton, PA
The Authentic! Tiffany & Co Platinum Diamond 6.5mm Pearl Necklace is a captivating piece of jewelry. Made with platinum, it exudes a luxurious and timeless appeal. The necklace showc...
Category

Early 2000s American Choker Necklaces

Materials

Diamond, Cultured Pearl, Platinum

Van Cleef & Arpels Classic Onyx Diamond Gold Cufflinks and Stud Dress Tuxedo Set
By Van Cleef & Arpels
Located in New York, NY
Classic 18k gold cufflinks & studs set by Van Cleef & Arpels, featuring diamonds in the center, approx. 0.80ctw G/VS, and onyx rim. Cufflink top measures 0.5" in diameter, 7/16" in d...
Category

20th Century French Art Deco Cufflinks

Materials

Diamond, Onyx, Gold

Emilio Jewelry Gia Certified 12.00 Carat Pink Diamond Ring
By Emilio!
Located in New York, NY
From Emilio Jewelry, a well known and respected wholesaler/dealer located in the Iconic Gem Tower/Gia Building in New York's Diamond District. This item has been appraised by the exp...
Category

21st Century and Contemporary Three-Stone Rings

Materials

Pink Diamond

Cartier Trinity Three-Color 18 Karat Gold Knot Cufflink Stud Set
By Cartier
Located in Simpsonville, SC
Elevate your formal attire to the pinnacle of elegance and style with the Cartier Trinity Three-Color 18 Karat Gold Knot Cufflink Stud Set. This exquisite ensemble combines Cartier's...
Category

21st Century and Contemporary Cufflinks

Materials

Gold, Rose Gold, White Gold, Yellow Gold

Van Cleef & Arpels Oval Sapphires and Baguette Diamond Bracelet Circa - 1938
By Van Cleef & Arpels
Located in New York, NY
Van Cleef & Arpels Bracelet of Oval Sapphires Surrounded by Baguette Diamonds Which Embrace the Sapphires. 15 Oval No Heat Sapphires Consisting of, 6 - Kashmir, 8- Burma, 1 - Ceylon....
Category

Vintage 1930s Link Bracelets

Materials

Diamond, Sapphire, Platinum

Vintage 1970s Van Cleef & Arpels 24.29 Carat Cushion Cut Yellow Diamond Ring
By Van Cleef & Arpels
Located in New York, NY
Finely crafted in 18k yellow gold with a GIA certified Cushion cut Diamond, Fancy Yellow color, VVS2 clarity, GIA#6177266012. The ring features two Shield cut side Diamonds. Signed b...
Category

Vintage 1970s Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold

BUCCELLATI Aquamarine Diamond Ruby 18k Yellow Gold Ring
By Gianmaria Buccellati
Located in New York, NY
This exquisite vintage Gianmaria Buccellati cocktail ring is crafted in 18k brushed and textured yellow gold with white gold accents. This ring is set with a faceted oval 7.0mm x 10....
Category

1990s Cocktail Rings

Materials

Aquamarine, Diamond, Ruby, Yellow Gold

Boucheron "Laperouse" 8.03 Carat Emerald Cut G VS1 GIA Certified Diamond Ring
By Boucheron
Located in Miami, FL
From the exceptional Salon de Boucheron: Centering an 8.03 Carat Emerald Cut "G" Color "VS1" Clarity Diamond, framed by 12 magnificent Briolette-Cut Diamond drops totaling 3.94 Carat...
Category

21st Century and Contemporary French Modern Cocktail Rings

Materials

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

Van Cleef & Arpels by Andre Vassort Ruby, Emerald, Sapphire and Diamond Necklace
By Van Cleef & Arpels
Located in New York, NY
A Van Cleef & Arpels Ruby, Emerald, Sapphire and Diamond Pendant Necklace in 18k Yellow gold. The necklace weighs 139.17 grams. The dimensions of the brooch is 2.25"" x 1.75"" and t...
Category

20th Century Link Necklaces

Materials

Diamond, Emerald, Ruby, Sapphire

Museum Tom Ford for Gucci Runway F/W 1999 2 in 1 Fur Coat Jacket
By Tom Ford for Gucci, Gucci
Located in Montgomery, TX
Museum Tom Ford for Gucci 2 in 1 Fur Coat Jacket F/W 1999 Runway Collection Coat can be converted to jacket in few seconds because of snap buttons along the waist - Brilliant Tom For...
Category

1990s Italian Coats

Bulgari Twin Ring 5.79ct Emerald and 7.25ct Diamond 18k Gold and Platinum
By Bulgari
Located in New York, NY
This chic BULGARI cocktail ring features an exceptional 5.79 carat AGL certified Colombian emerald and a GIA certified 7.25 carat square emerlad-cut diamond of E color and VS1 clarit...
Category

Late 20th Century Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, Platinum

Cartier 18KT Yellow Gold & Onyx Cuff Links / Studs Dress Set, c.1970's
By Cartier
Located in New York, NY
Classic 18 karat yellow gold square cuff links and studs set with black onyx. The link style cuff links measure 10.5 mm. The studs (3) measure 7.5mm. Signed Cartier 18k with the jewe...
Category

Vintage 1970s French Retro Cufflinks

Materials

Onyx, 18k Gold, Yellow Gold

Edwardian Old Cut Diamond Foliate Scroll Tiara in Silver and Gold
Located in London, England
A truly elegant Edwardian old cut diamond tiara set in silver and gold, circa 1910. This beautifully handcrafted tiara is composed of a number of elegant foliate scroll motifs, com...
Category

Vintage 1910s Swedish Edwardian Vanity Items

Materials

Diamond, Gold, Silver

Van Cleef & Arpels Turquoise & Diamond Convertible Necklace
By Van Cleef & Arpels
Located in New York, NY
Van Cleef & Arpels Turquoise & Diamond Convertible Necklace An 18 karat yellow gold necklace set with cabochon turquoise and round cut diamonds. The necklace is made of 3 sections a...
Category

Vintage 1960s American Link Necklaces

Materials

Diamond, Turquoise, Gold, 18k Gold, Yellow Gold

Magnificent Sapphire and Diamond Gold Drop Statement Earrings
Located in Montreal, QC
Simply Beautiful! Finely detailed Mid Century Modern Magnificent Pair Sapphire and Diamond Gold Drop Earrings. Each centering a securely nestled Hand set 28 Carat Blue Sapphire. Appr...
Category

Late 20th Century Modernist Drop Earrings

Materials

Diamond, Sapphire, Gold, 18k Gold, White Gold

Van Cleef And Arpels Diamond and Amethyst Bracelet Platinum.
By Van Cleef & Arpels
Located in New York, NY
Van Cleef And Arpels diamond and amethyst line bracelet in platinum. The bracelet features 10 emerald cut amethysts graduating in size, alternating with 10 links consisting of 2 bag...
Category

Mid-20th Century French Retro Link Bracelets

Materials

Amethyst, Diamond, Platinum

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Ruby Dress Set For Sale on 1stDibs

You are likely to find exactly the ruby dress set you’re looking for on 1stDibs, as there is a broad range for sale. Each design created in this style — which was crafted with great care and often made from Gold, 18k Gold and Yellow Gold — can elevate any look. You can easily find a 24 antique edition and 8 modern creations to choose from as well. Making the right choice when shopping for a ruby dress set may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 20th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. For this particular accessory, there are many different carat weights to choose from, but 3.5 Carat and 4 Carat versions are of considerable interest. Finding an appealing ruby dress set — no matter the origin — is easy, but David Webb, Tiffany & Co. and Aletto Brothers each produced a popular version that is worth a look. See these pages for a round cut iteration of this accessory, while there are also baguette cut cut and oval cut cut versions available here, too. Finding a ruby dress set for sale for men should be easy, but there are 12 pieces available to browse for unisex as well as women, too.

How Much is a Ruby Dress Set?

Prices for a ruby dress set can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1,000 and can go as high as $31,554, while this accessory, on average, fetches $10,629.

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.