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GIA 2.39 Carat Burma No Heat Red Ruby with Diamonds 18 Karat Gold Halo Ring
Located in Addison, TX
Gem Stone Details: Type: Ruby Origin: Burma (Myanmar) Treatments: None; NO HEAT; Non-heated Color
Category

Early 20th Century Unknown Art Deco Fashion Rings

Materials

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

Ruby and Diamond Bangle
Located in London, GB
An Art Deco Burma ruby and diamond bangle, alternating sections of five claw set old cut diamonds
Category

Vintage 1930s Art Deco Bangles

Materials

Diamond, Ruby, Platinum

306.45 Carats Johnson Ruby Plain Beaded Necklace Top Quality Natural Gemstone
Located in Jaipur, RJ
306.45 Carats Johnson Ruby Plain Beaded Necklace Top Quality Natural Gemstone Gemstone - Ruby
Category

21st Century and Contemporary Burmese Art Deco Beaded Necklaces

Materials

Ruby

IGI 1.17Ct Unheated Mogok Ruby Halo Ring
Located in Singapore, SG
IGI (International Gemological Institute) stating that the ruby is natural and from Burma (Myanmar
Category

21st Century and Contemporary Singaporean Art Deco Engagement Rings

Materials

Ruby, 18k Gold, White Gold

Ruby and Diamond flower Ring in 18k White Gold
Located in Singapore, SG
enhancement) Origin of ruby - Mogok, Burma (Myanmar) Weight of natural diamonds - 0.15Ct Metal-18k White
Category

21st Century and Contemporary Singaporean Art Deco Cluster Rings

Materials

Diamond, Ruby, White Gold

Total 2.32Ct Ruby and Natural diamond Drop Earring
Located in Singapore, SG
: Main Gemstone - Burmese Unheated Ruby Total Carat Weight (2pcs) - 2.32Ct Measurement of ruby
Category

21st Century and Contemporary Singaporean Art Deco Drop Earrings

Materials

Diamond, Ruby, 18k Gold, White Gold

Unheated Mogok Rubies bold dome design Earring in 18k solid gold
Located in Singapore, SG
by a gem certificate from AGGL (Myanmar) stating that the ruby is Mogok, Burma origin with no
Category

21st Century and Contemporary Singaporean Art Deco Stud Earrings

Materials

Ruby, 18k Gold, Yellow Gold

Art Deco Burmese Ruby Diamond Double Row Tennis Bracelet
Located in MIAMI, FL
Amazing art deco creation crafted in platinum. The bracelet is set with two rows of gemstones that
Category

Early 20th Century Unknown Art Deco Tennis Bracelets

Materials

Diamond, Ruby, Platinum

Art Deco No-Heat Burmese Ruby Diamond Platinum Ring, GIA Certified
Located in Beverly Hills, CA
A beautiful treasure from the 1920’s! This lovely antique platinum ring features rare Burmese ruby
Category

Antique 1620s American Art Deco Engagement Rings

Materials

Diamond, Ruby, Platinum

GIA Certified 7.23 Carat Burmese Ruby and Diamond Art Deco Style Ring
Located in Tokyo, JP
A beautiful Art Deco Style Ring with 7.23 Carats of fine Emerald-Cut Rubies and 0.36 Carats of
Category

2010s Japanese Art Deco Cocktail Rings

Materials

Diamond, Ruby, Platinum

Art Deco 6.51 Carat GIA Cert Star Burma Ruby Diamond Platinum Ring
Located in Aspen, CO
slightly included to the first degree. The unheated Burma ruby is accompanied by a certificate from G.I.A
Category

Early 20th Century Unknown Art Deco More Rings

Materials

Diamond, Ruby, Platinum

Art Deco Style Engraved Burma Jade Enamel Ruby Gold Diamonds Dangle Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
SHIPPING+CUSTOM DUTY ARE PAID BY SELLER In these classic Art Deco Style earrings the tops are 2
Category

1990s Thai Art Deco Dangle Earrings

Materials

Diamond, Jade, Ruby, Gold, 14k Gold, Enamel

Art Deco Purplish Pink Certified Burma Ruby Platinum Diamond Ring
Located in Stamford, CT
Rubies. This GIA certified Burma origin with certified rare purplish pink or blood red bright color
Category

Early 20th Century Art Deco Fashion Rings

Materials

Diamond, Sapphire, Platinum

Burmese Ruby Cabochon and Diamond Art Deco Ring, circa 1930s
Located in Idar-Oberstein, DE
A large ruby cabochon and diamond Art Deco ring in white gold, ca. 1930s. The ruby weighs 6.26
Category

Mid-20th Century Cocktail Rings

Materials

Diamond, Ruby, 18k Gold

Art Deco Burmese Ruby and Diamond Drop Earrings Platinum Fringed Dangles 4 Carat
Located in Santa Barbara, CA
Era: Art Deco Year: 1915-1935 Metal: Platinum, 18K Yellow Gold Center Gemstones: Natural Burma Ruby
Category

Vintage 1920s Art Deco Dangle Earrings

Materials

Diamond, Ruby, 18k Gold, Platinum

Art Deco Style Engraved Burma Jade Enamel Ruby Gold Diamonds Dangle Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
50 mm long and 15 mm wide. In 1978 our workshop started in Italy to make simple-chic Art Deco style
Category

Early 2000s Thai Art Deco Dangle Earrings

Materials

Diamond, Jade, Ruby, Gold, Enamel

Art Deco Style Engraved Burma Jade Black Enamel Ruby Gold Diamonds Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
wide. In 1978 our workshop started in Italy to make simple-chic Art Deco style jewellery, completely
Category

Early 2000s Thai Art Deco Dangle Earrings

Materials

Diamond, Jade, Ruby, Gold, Enamel

Art Deco Style Engraved Burma Jade Enamel Ruby Gold Diamonds Dangle Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
wide. In 1978 our workshop started in Italy to make simple-chic Art Deco style jewellery, completely
Category

Early 2000s Thai Art Deco Dangle Earrings

Materials

Diamond, Jade, Ruby, Gold, Enamel

Art Deco Style Engraved Burma Jade Enamel Ruby Gold Diamonds Dangle Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
wide. In 1978 our workshop started in Italy to make simple-chic Art Deco style jewellery, completely
Category

Early 2000s Thai Art Deco Dangle Earrings

Materials

Diamond, Jade, Ruby, Gold, Enamel

Art Deco Style Engraved Burma Jade Enamel Ruby Gold Diamonds Dangle Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
In these classic Art Deco Style earrings the tops are 2 Ruby Oval cabs ,middle parts are composed
Category

1990s Thai Art Deco Dangle Earrings

Materials

Diamond, Jade, Ruby, Gold, 14k Gold, Enamel

Art Deco Style Engraved Burma Jade Enamel Ruby Gold Diamonds Dangle Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
In these classic Art Deco Style earrings the tops are 2 Ruby Oval cabs ,middle parts are composed
Category

1990s Thai Art Deco Dangle Earrings

Materials

Diamond, Jade, Ruby, Gold, 14k Gold, Enamel

Art Deco Style Engraved Burma Jade Enamel Ruby Gold Diamonds Trapeze Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
13 mm large. In 1978 our workshop started in Italy to make simple-chic Art Deco style jewellery
Category

Early 2000s Thai Art Deco Dangle Earrings

Materials

Diamond, Jade, Ruby, Gold, 14k Gold, Enamel

Art Deco Style Burma Jade Rubies Black Onyx Black Enamel Gold Diamonds Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
In these Classic Art Deco Style Earrings we have 2 round black onix buttons with in the center 2
Category

Early 2000s Thai Art Deco Drop Earrings

Materials

Ruby, Onyx, Jade, Diamond, Enamel, 14k Gold, Gold

Art Deco Style Burma Jade Rubies Gold Diamonds Red Enamel Black Onyx Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
Art Deco Earrings with 2 round black onix buttons on top with small round ruby cabochons in the
Category

1990s Thai Art Deco Dangle Earrings

Materials

Diamond, Jade, Ruby, Gold, 18k Gold, Enamel

Art Decô Design with 3, 81 Carats of Burma Ruby and Diamonds on Ring
Located in New Delhi, Delhi
Stunning Art Decô design ring, so chic and refined, in 18k gold with a cabochon cut Burma ruby of
Category

21st Century and Contemporary Art Deco Cocktail Rings

Materials

Diamond, Ruby, 18k Gold

18 Karat Gold Custom Cut Burma Ruby Baguette Diamond Art Deco Style Ring
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
18 karat gold custom cut burma ruby baguette diamond art deco circular ring. Art Deco Style, color
Category

21st Century and Contemporary Indian Art Deco Cocktail Rings

Materials

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

18 Karat Gold Custom Cut Burma Ruby Baguette Diamond Art Deco Style Ring
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
18 karat gold custom cut burma ruby baguette diamond art deco circular ring. Art Deco Style, color
Category

21st Century and Contemporary Indian Art Deco Cocktail Rings

Materials

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

Art Deco Burmese Red Ruby and Old Mine Cut Diamond Trilogy Engagement Ring
Located in London, England
A beautiful late Art Deco ruby and old mine cut diamond trilogy engagement ring set in 18k yellow
Category

Vintage 1920s British Art Deco Three-Stone Rings

Materials

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

Very Regal 32 Carat Art Deco Style Burmese Ruby and Diamond Bracelet !8K Gold
Located in Tustin, CA
Very unique and exquisite, hand crafted estate 32 carat Art Deco style pigeon blood Burmese ruby
Category

20th Century American Art Deco Link Bracelets

Materials

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

Burmese Ruby Diamond Gold Earrings
Located in San Francisco, CA
A stunning pair of 18k white gold earrings featuring two oval modified brilliant cut Burmese rubies
Category

21st Century and Contemporary Art Deco Dangle Earrings

Materials

Diamond, Ruby, 18k Gold, Gold

Fine Burma ruby and diamond bracelet
Located in Aspen, CO
Approximately 85 cts. of fine Burma rubies twisted and finished with a platinum and diamond clasp
Category

Mid-20th Century American Art Deco Beaded Bracelets

Materials

Diamond, Ruby, Platinum

Burma Ruby Diamond and Platinum Brooch
Located in New Hope, PA
An intense pigeon blood red Burma ruby is the central stone in this striking platinum filigree
Category

Early 20th Century Unknown Art Deco Brooches

Materials

Diamond, Ruby, Platinum

Certified 10.53 Carats No Heat Burmese Ruby Cushion Faceted Cutstone Natural Gem
Located in Jaipur, RJ
Rare Burmese Myanmar ruby no heat no treatment Weight: 10.53 Carats Size: 13.50x10.50x8 MM Pieces
Category

21st Century and Contemporary Burmese Art Deco Loose Gemstones

Materials

Ruby

Burma No Heat Ruby hoop earring (Ruby Square Hoop Earring)
Located in Singapore, SG
color. Each ruby is completely natural, originating from Burma, and free from any enhancements or
Category

21st Century and Contemporary Singaporean Art Deco Hoop Earrings

Materials

Ruby, 18k Gold

Burmese Ruby Trilogy Ring Yellow Gold
By Emeralds Maravellous
Located in US
colour. Burmese origin, heat treatment. each 6.4mm x 4.5mm approx. Total ruby weight approx 1.72 carat
Category

21st Century and Contemporary American Art Deco Three-Stone Rings

Materials

Ruby, 14k Gold, Yellow Gold

Platinum and Diamond Ring Featuring Burma Ruby
Located in San Francisco, CA
A gorgeous French style Platinum and Diamond Ring showcasing one Burma Ruby weighing 1.44 carats
Category

2010s American Art Deco Engagement Rings

Materials

Diamond, Ruby, Platinum

Ruby Earring Certified 1.00ctw Burma Ruby 925 Sterling Silver Earring
Located in Delhi, DL
Ruby (Real) - Gem Stone Wt. : 1.00ctw - No of Stone- 02 (Piece
Category

2010s Indian Art Deco Stud Earrings

Materials

Ruby, Sterling Silver

Natural Ruby Earring 1.10ctw Burma Ruby 18K Gold Vermeil Ruby Earrings studs
Located in Delhi, DL
------------------------------------------------- -Gemstone- Natural Ruby - Gemstone origin- Burma - Gem Stone Wt. : 1.10ctw - No of Stone- 02 (Piece
Category

2010s Indian Art Deco Stud Earrings

Materials

Ruby, Sterling Silver, 18k Gold, Vermeil

Burma Unheated Ruby earrings in 18k Yellow Gold
Located in Singapore, SG
by a gem certificate from Myanmar Treasure Gem Lab (Myanmar) stating that the rubies are Mogok, Burma
Category

21st Century and Contemporary Singaporean Art Deco Stud Earrings

Materials

Ruby, 18k Gold, Yellow Gold

Burma Unheated Ruby Ring in 18K Gold (Ruby full eternity ring)
Located in Singapore, SG
rubies are natural from Burma with no indications of enhancement. ================== ● 100
Category

21st Century and Contemporary Singaporean Art Deco Fashion Rings

Materials

Ruby, 18k Gold, Yellow Gold

9.13 Carat Burma Ruby and Diamond Cocktail Ring
By Royaal Stones Ltd
Located in Bangkok, Thailand
A beautiful 9.13 carat Burmese Ruby opaque cabochon, sorrounded by 2.55 carats of heart shape
Category

21st Century and Contemporary Hong Kong Art Deco Cocktail Rings

Materials

Diamond, White Diamond, Ruby, Platinum

Vintage look Ruby diamond halo Earring Burma Ruby 925 Sterling Silver Earring
Located in Delhi, DL
------------------------------------------------- -Gemstone-Natural Ruby (Real) - Gem Stone Wt.: 6.10ctw - No of Stone- 02 (Piece
Category

2010s Indian Art Deco Stud Earrings

Materials

Diamond, Ruby, Sterling Silver

GIA Certified 2.5Ct No Heat Burma Ruby Pendant (Carved Rose)
Located in Singapore, SG
If you are a fan of Burma Ruby and appreciate its natural beauty without any undergone treatment at
Category

21st Century and Contemporary Singaporean Art Deco Pendant Necklaces

Materials

Ruby, 18k Gold, Yellow Gold

Old Russian 1.86 Carat Burma No Heat Ruby Diamond Ring
Located in New York, NY
An Art Deco antique cushion-cut burmese purplish-red ruby (no-heat, no oil) ring with four old
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Ruby, Yellow Gold, 14k Gold

GRS Certified 3.02 Carat Burma Ruby and Diamond Cocktail Ring
By Royaal Stones Ltd
Located in Bangkok, Thailand
Beautiful cocktail ring, with a lustrous 3.02 carat heart shaped Burmese Ruby with White Diamond
Category

21st Century and Contemporary Hong Kong Art Deco Cocktail Rings

Materials

Diamond, White Diamond, Ruby, Platinum

Pigeon Blood Natural Burma Ruby SSEF 0.82 Carat Ring, circa 1920s
Located in Idar-Oberstein, DE
Rare Pigeon Blood Color 0.82ct Natural Burmese Ruby and Diamond Ring, ca. 1920s A beautiful and
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Ruby, Platinum

Unheated Burma Ruby Necklace with Natural Diamonds in 18k solid gold
Located in Singapore, SG
"No Heat Burma Ruby Necklace (Mogok Ruby Necklace)" Genuine untreated Burma rubies, particularly
Category

21st Century and Contemporary Singaporean Art Deco Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold

Burma Unheated Pinkish Red flower ruby ring in 18k solid gold
Located in Singapore, SG
This burma ruby ring comprises 22 unheated rubies that display a striking combination of pinkish
Category

21st Century and Contemporary Singaporean Art Deco Cluster Rings

Materials

Ruby, 18k Gold

Cartier 10.86 Carat Burma No Heat Star Ruby Diamond Platinum Ring
By Cartier
Located in Chevy Chase, MD
A magnificent Burma no heat cabochon star ruby and diamond platinum ring by Cartier. The 10.86ct
Category

Mid-20th Century American Art Deco Cocktail Rings

Materials

Diamond, Ruby, Platinum

Natural 6.10 Carat Burmese Ruby and Blue Sapphire Diamond Cocktail Ring
Located in Bangkok, TH
This Art Deco style ring was set with the natural Ruby from Burma (heat treatment) weighed 6.10
Category

Mid-20th Century Unknown Art Deco Cocktail Rings

Materials

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

New Oscar Friedman Burma Ruby .99 Carat Diamond Platinum Ring w Appraisal
Located in Eagan, MN
. The diamonds are VS1-VS2 and G-H in color. The centerstone is a Burma (Myanmar) Marquise cut Ruby
Category

2010s Unknown Art Deco Cocktail Rings

Materials

Diamond, Ruby, Platinum

NO RESERVE! 5.07 Carat Natural Burma Rubies Tennis 14K Yellow gold Bracelet
By Diamonds Mine
Located in Ramat Gan, IL
A truly one of a kind natural Ruby bracelet, set with round ruby stones. The bracelet will stand
Category

2010s Art Deco Tennis Bracelets

Materials

Ruby, 14k Gold, Yellow Gold

18 Karat Gold Diamond Burma Ruby Baguette Pendant Necklace Earring Ring Set
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
karat gold art deco channel set ruby baguette diamond pendant necklace, earrings and ring. The burma
Category

21st Century and Contemporary Indian Art Deco Stud Earrings

Materials

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

$1 NO RESERVE! 3.40cttw Burma Ruby 0.05Ct Diamonds - 14k Yellow Gold Earrings
By Diamonds Mine
Located in Ramat Gan, IL
Center Natural Ruby: Weight: 3.40 cttw (pair)/42 stones Color: Red Shape: Round Brilliant These
Category

2010s Israeli Art Deco Stud Earrings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

GIA Certified 1.16 Carat Natural Burmese Ruby and Diamond Ring Set in Platinum
Located in Tokyo, JP
A beautiful ring set in Platinum featuring a GIA Certified 1.16 Carat Natural Burmese Ruby and 0.68
Category

21st Century and Contemporary Japanese Art Deco Engagement Rings

Materials

Diamond, Ruby, Platinum

Vintage Platinum Gold Diamond Burma Rubies Pearl Circle 1.25 Inch Brooch
Located in New York, NY
, ensuring a brilliant sparkle with minimal inclusions. Rubies: Quantity: Nine bezel-set genuine Burma rubies
Category

Early 20th Century English Art Deco Brooches

Materials

Diamond, Pearl, Ruby, Gold, 14k Gold, Platinum, White Gold

$1 NO RESERVE! - Burma 4.01cttw Natural Red Rubies - 14K Yellow Gold Ring
By Diamonds Mine
Located in Ramat Gan, IL
Trough the dawn of history and to the current days, rubies have always been the most prized and
Category

2010s Israeli Art Deco Wedding Rings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

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Burmese Ruby Art Deco For Sale on 1stDibs

Surely you’ll find the exact burmese ruby art deco you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Frequently made of gold, 18k gold and platinum, this item was constructed with great care. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect burmese ruby art deco may mean sifting through those created during different time periods — you can find an early version that dates to the 18th Century and a newer variation that were made as recently as the 21st Century. For this particular piece, 1 carat and 1.5 carat are consistently popular carat weights. There have been many well-made iterations of the classic burmese ruby art deco over the years, but those made by Tutti Frutti Jewellery, Royaal Stones Ltd and Rewa Jewellery are often thought to be among the most beautiful. See these pages for an oval cut iteration of this accessory, while there are also mixed cut cut and cushion cut cut versions available here, too. There aren’t many items for men if you’re seeking a burmese ruby art deco, as most of the options available are for women and unisex.

How Much is a Burmese Ruby Art Deco?

On average, a burmese ruby art deco at 1stDibs sells for $8,450, while they’re typically $170 on the low end and $1,800,000 for the highest priced versions of this item.

A Close Look at Art Deco Jewelry

Fascination with the Jazz Age is endless, and even today jewelry designers continue to be inspired by authentic Art Deco jewelry and watches.

The Art Deco period, encompassing the 1920s and ’30s, ushered in a very distinct look in the design of jewelry. There were many influences on the jewelry of the era that actually began to take shape prior to the 1920s. In 1909, Serge Diaghilev brought the Ballet Russes to Paris, and women went wild for the company’s exotic and vibrant costumes It’s no wonder, then, that jade, lapis lazuli, coral, turquoise and other bright gemstones became all the rage. There already existed a fascination with the East, particularly China and Japan, and motifs consisting of fans and masks started to show up in Art Deco jewelry.

However, the event that had the greatest influence on Deco was the excavation of the tomb of King Tut in 1922. When the world saw what was hidden in Tut’s burial chamber, it sent just about everyone into a frenzy. Pierre Cartier wrote in 1923 that “the discovery of the tomb will bring some sweeping changes in fashion jewelry.” And he couldn’t have been more right. “Egyptomania” left an indelible mark on all of the major jewelry houses, from Cartier to Van Cleef Arpels, Boucheron and Georges Fouquet. (Cartier created some of the most iconic jewelry designs that defined this era.)

While a lot of Art Deco jewelry was black and white — the black coming from the use of onyx or black enamel and the white from rock crystal and diamonds — there is plenty of color in jewelry of the era. A perfect accent to diamonds in platinum settings were blue sapphires, emeralds and rubies, and these stones were also used in combination with each other.

Many designers employed coral, jade and lapis lazuli, too. In fact, some of the most important avant-garde jewelers of the period, like Jean Després and Jean Fouquet (son of Georges), would combine white gold with ebony and malachite for a jolt of color.

A lot of the jewelry produced during this time nodded to current fashion trends, and women often accessorized their accessories. The cloche hat was often accented with geometric diamond brooches or double-clip brooches. Backless evening dresses looked fabulous with sautoir necklaces, and long pearl necklaces that ended with tassels, popular during the Edwardian period, were favored by women everywhere, including Coco Chanel.

Find unique Art Deco necklaces, earrings, bracelets and other 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.