13.36 Carat Burma Ruby And Diamond Earrings In Platinum
By Rewa Jewellery
Located in Bangkok, TH
It has 46 pieces of Burma No Heat Rubies weighing 13.36 carat approximately.
2010s Thai Modern Chandelier Earrings
Diamond, Ruby, Platinum
13.36 Carat Burma Ruby And Diamond Earrings In Platinum
By Rewa Jewellery
Located in Bangkok, TH
It has 46 pieces of Burma No Heat Rubies weighing 13.36 carat approximately.
Diamond, Ruby, Platinum
2.31 Carat No-Heat Burmese Ruby Diamond Platinum Ballerina Ring, AIGS Certified
Located in Beverly Hills, CA
The ruby weighs 2.31 carats and comes from the famous mines of Mogok in Burma.
Diamond, Ruby, Platinum
Exquisite Certified Ct 9, 70 of Burma Ruby and Diamonds on Ring
Located in New Delhi, Delhi
From ❤️ love collection, exclusive design in 18k gold with heart cut Burma ruby ct 8,60 and round brilliant cut diamonds ct 1,10 F/VS.
Diamond, Ruby, 18k Gold
$9,530Sale Price|20% Off
Alexander Beverly Hills GIA 2.08 Carat Burmese Ruby with Diamond Halo Ring 18k
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning Burmese ruby and diamond halo ring, GIA certified.
Diamond, White Diamond, Ruby, Gold, 18k Gold, White Gold, Yellow Gold
$30,400Sale Price|20% Off
Art Deco Burma Ruby and Diamond Ring In Platinum, GIA Certified.
Located in New York, NY
This captivating ring centers on a vibrant, natural unheated Burmese ruby of exceptional color and clarity weighing approximately 1.50 carats , the octagonal step cut ruby radiates a...
Diamond, Ruby, Platinum
Superb 1.01 Carat Ho-Heat Burmese Ruby Diamond Platinum Ring, GIA Certified
Located in Beverly Hills, CA
To find a Burmese ruby of this quality that is also untreated is a very very difficult task as stones like this are exceedingly rare.
Diamond, Ruby, Platinum
$4,160Sale Price|20% Off
1.02 Ct AIGS Certificate Unheated Burma Ruby Pigeon Blood color No heat
Located in bangkok, TH
RMA100 AIGS Certificate Unheated Burma Ruby Pigeon Blood GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby Weight: 1.02ct Color: vivid Red (Pigeon blood) Cut: Heart Cl...
Ruby
Emilio Jewelry Certified 95.00 Carat Burma Ruby Necklace And Bracelet Set
By Emilio!
Located in New York, NY
Necklace: Approximately 36.50 carats burma rubies eye clean all certified as intense red!
Ruby
18k Yellow Gold Jose Hess Burmese Ruby and Diamond Necklace
By Jose Hess
Located in Boston, MA
The centerpiece is a breathtaking 1.58 carat natural Burmese ruby, renowned for its highly coveted "pigeon's blood" red hue.
Diamond, Ruby, Yellow Gold, 18k Gold
AIG Certified 12.00 Carats Burma Rubies 3.80 Ct Diamonds 18k Gold Earrings
Located in New Delhi, Delhi
Exclusive design Art Deco in 18k gold two with cabochon cut Burma rubies of 12,00 carats , and natural diamonds ct 3,80 F/VS.
18k Gold
Vintage 6.95Ct Burmese Ruby and 4.80Ct Diamond, 18k Yellow Gold Ring Circa 1950
Located in Jesmond, Newcastle Upon Tyne
A stunning vintage 6.95 carat Cabochon Burmese ruby and 4.80 carat diamond, 18 karat yellow gold, platinum set cluster ring; part of our diverse collection of Burmese rubies.
Diamond, Ruby, Yellow Gold, Platinum
$2,320Sale Price|20% Off
1.43 Ct GRS Certificate Natural Burma Ruby No heat Red Color Oval Shape Unheat
Located in bangkok, TH
RMA130 GRS Certificate Natural Burma Ruby Unheated red color oval shape gemstone GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby Unheated Weight: 1.43ct Color: ...
Ruby
GIA Certified 1.01 Ct. Pigeon Blood Burma Ruby and Diamond Ring, Platinum
Located in New York, NY
A GIA Certified 1.01 ct. Oval Pigeon Blood Burma Ruby and 0.45 ct. Diamond Ring made in Platinum.
Diamond, Ruby, Platinum
Edwardian 1900s Antique Toi et Moi Burma Ruby and Diamond Platinum 18K Ring
Located in Santa Monica, CA
Edwardian 1900s Antique 1/2 Ct Burma Ruby and 1/3 Ct Old European Cut Diamond Ring in Toi et Moi Style 3.3 gram 18 Karat yellow Gold Platinum topped lady's ring circa 1900s, Edward...
Diamond, Ruby, Platinum
0.30 Carat Burmese Ruby and Diamond Cluster Ring
Located in London, GB
Here we have a wonderfully crafted ruby and diamond cluster ring. A pear shaped natural Burmese ruby possessing a playful pinky undertone sits at the centre of the piece and is frame...
Diamond, Ruby, Gold, White Gold, Yellow Gold
Antique 0.70 Carat Burmese Ruby and Diamond, Platinum Ring Circa 1915
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique 0.70 carat Burmese ruby and 0.06 carat diamond, platinum ring; part of our antique ruby jewelry collection.
Diamond, Ruby, Platinum
9.34 ct AGL Certified Unheated Burma Ruby Ring in Platinum Diamond Setting
Located in La Jolla, CA
9.34 ct AGL Certified Unheated Burma Ruby Ring in Platinum Diamond Setting Unheated Burma Ruby (AGL Certified) in Custom Platinum Diamond Setting features a Natural Oval Mixed Cut ...
Diamond, Ruby, Platinum
GIA Certified Burma Ruby Cushion Cut 7.4×5.71mm 1.73Ct Natural - Red Gemstone
Located in Columbus, OH
This GIA-certified Burma Ruby, weighing 1.73 carats with a stunning 7.38x5.71x4.63mm cushion cut, is a rare and exquisite gem.
Ruby
$57,750Sale Price|30% Off
GRS Certified 8.31 Carat Burmese Ruby Diamond White Gold Halo Ring
Located in Trumbull, CT
This opulent ring boasts a highly coveted 8.31 carat GRS certified Oval Burmese Ruby surrounded by sparkling halo of 2.80 carat round white diamonds.
Diamond, Ruby, 18k Gold, White Gold
7.15 Carats Burmese Ruby & Old European Diamond Drop Earrings
By Unbranded
Located in Tysons, VA
Designed as elegant double-cluster drops, each earring centers a vivid oval Burmese ruby framed by old European-cut diamonds and joined to a matching pendant cluster.
Ruby, Diamond, Platinum
$7,200Sale Price|20% Off
IGI Certified 2.01 Carat Burma Ruby & Diamond Ring in 18K White Gold
Located in KOWLOON, HK
Elevate your everyday look with the captivating beauty of this Burma Ruby and Diamond ring, and revel in the luxury and prestige that it brings to your ensemble.
Diamond, Ruby, 18k Gold, White Gold
1.14 Carat Burmese Ruby Diamond White Gold Engagement Ring
By Roshe Jewels
Located in Los Angeles, CA
1.14 Carat Burmese Ruby Diamond White Gold Engagement Ring The center stone is a natural 0.81 Carat Ruby from Burma (Myanmar) surrounded by 66 Round Cut Diamonds weighing 0.33 Carats.
Diamond, Ruby, 18k Gold, White Gold
Burmese Ruby and Diamond Floral Cluster Statement Bracelet
Located in Chicago, IL
Expertly composed with a mix of round, oval, and marquise cuts, the piece offers fluid movement and refined symmetry, while the gemstones’ transparent clarity and very good overall q...
Diamond, Ruby, 18k Gold
Vintage 1.16 Carat Burma Ruby GIA and Diamond Gold Fan Navette Cocktail Ring
Located in Montreal, QC
Simply Beautiful! Finely detailed GIA Burma Ruby and Diamond Gold Ring. Centering a securely nestled Burma Ruby, weighing approx. 1.16 Carat.
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
18K Rose Gold Calla Lily Burma Ruby Pink Sapphire Colored Diamond Drop Earrings
By Althoff Jewelry
Located in Hong Kong, HK
18K Rose Gold Calla Lily Burma Ruby Pink Sapphire Colored Diamond Drop Earrings 18 Diamonds - 0.15 CT 144 Pink Sapphires - 1.90 CT 22 Rubies - 1.42 CT 18K Rose Gold - 5.64 GM In th...
Diamond, Ruby, Pink Sapphire, 18k Gold, Rose Gold
Mid-20th Century Retro Five Stone Burma Ruby Ring in 18kt Yellow Gold
Located in Firenze, IT
Mid-20th century five stone Burma ruby ring, with graduated round cut ruby, approximately 1.3cts in all, claw set in 18kt yellow gold.
Ruby, 18k Gold, Yellow Gold
3.88 Carat Vivid Red Burma Ruby Colombian Emerald Christmas Color Cocktail Ring
By Malpani Jewels
Located in Hung Hom, HK
2.18 Carat of vivid red Burma Ruby, 1.70 carat of Colombian Emerald and 0.39 carat of white brilliant round diamond are set in this beautiful cocktail ring.
Diamond, White Diamond, Emerald, Ruby, 18k Gold
18K Rose Gold Calla Lily Burma Ruby Pink Sapphire Diamond Open Cocktail Ring
By Althoff Jewelry
Located in Hong Kong, HK
18K Rose Gold Calla Lily Burma Ruby Pink Sapphire Diamond Open Cocktail Ring US Size: 6.5 3 Diamonds - 0.03 CT 78 Pink Sapphires - 0.86 CT 13 Rubies - 1.43 CT 18K Rose Gold - 3.87 G...
Diamond, Ruby, Pink Sapphire, 18k Gold, Rose Gold
3.52 Carat Antique Cushion Unheated Burma Ruby and Diamond 3-Stone Platinum Ring
Located in Boston, MA
The secluded Burmese Ruby mines, along with centuries old geo-political conflicts magnifies the rarity making these Burmese rubies incredibly difficult to export.
Diamond, Ruby, Platinum
$112,000Sale Price|20% Off
GIA Certified 24 Carat Burmese Rubies Diamond Bracelet
Located in Chicago, IL
stunning bracelet is a true masterpiece, featuring 13 natural oval red Burma rubies with a total weight of approximately 20 carats.
Diamond, Ruby, White Gold, 18k Gold, Yellow Gold
IGI Certified 3.01 Carat Burma Ruby & Diamond Earrings in 18K Pink Gold
Located in KOWLOON, HK
Treasures from Myanmar (Burma) These rubies originate from Myanmar (formerly Burma), a region historically celebrated for producing some of the world's finest rubies.
Diamond, Ruby, 18k Gold, Gold
Cellini Jewelers Platinum 21.35Ct. Burmese Ruby and 3.86 Carat Diamond Bracelet
By Cellini
Located in New York, NY
AN IMPORTANT RUBY AND DIAMOND BRACELET. The graduating bracelet is designed with two rows of oval Burmese Rubies with single Marquis Diamond connections.
Diamond, Ruby, Platinum
Premium GIA Certified Burma Ruby Cushion Cut 1.79cts 6.73x6.13mm – Red Gemstone
Located in Columbus, OH
A vivid treasure from the legendary mines of Burma, this GIA certified ruby glows with the rich, romantic red hue that has made Burmese rubies the most coveted in the world for centu...
Ruby
GIA-Certified Burma Ruby Round Cut 5.8x5.7mm 1.01 Cts – Loose Gemstone
Located in Columbus, OH
This GIA-Certified Burma Ruby is a truly exceptional gemstone, renowned for its vivid color and unmatched quality.
Ruby
Antique 1.50 Carat Burmese Ruby and 0.66 Carat Diamond Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique 1.50 carat Burmese ruby and 0.66 carat diamond, platinum cocktail ring; part of our diverse Burmese ruby jewellery collections.
Diamond, Ruby, Platinum
19th-Century Yellow Gold Duchess Ring Burma Ruby, Ceylon Sapphire, diamonds
Located in MONTMORENCY, FR
Central to its elegant oval design is an antique Old-cut pear shaped diamond (≈ 0.50 ct), flanked by an unheated Burmese ruby (≈ 0.20 ct) and an unheated Ceylon sapphire (≈ 0.30 ct).
Diamond, Ruby, Sapphire, 18k Gold, Yellow Gold
Georges L'Enfant Vintage Burmese Ruby Bracelet, Platinum, Circa 1950s
By Georges L'Enfant
Located in New York, NY
The rubies are accompanied by a report from GGTL, stating that they are natural corundum rubies of Burmese (Myanmar) origin with no indication of thermal treatment.
Ruby, Platinum
$5,600Sale Price|20% Off
IGI Certified 3.10 Carat Burma Ruby & Diamond Ring in 18K White Gold
Located in KOWLOON, HK
The simplicity of the design allows the Burma ruby to take center stage, capturing attention with their natural beauty.
Diamond, Ruby, 18k Gold, White Gold
Pigeon's blood Burmese Ruby and Diamond Three-Stone Ring, circa 1900
Located in London, GB
Pigeon's blood Burmese ruby and diamond three stone ring. Set to centre with a cushion shape old cut natural unenhanced Pigeon's Blood Burmese ruby in an open back claw setting with ...
Diamond, Ruby, Yellow Gold
$2,400Sale Price|20% Off
1.77 carats Burma Ruby Unheated pigeon blood red Double “pairs “AIGS certificate
Located in bangkok, TH
Pair 1.77 Carats Burma Ruby Unheated pigeon blood red Color Double “pair” AIGS Two certificate RMC24 Name:Ruby Weight: 1.77carats Size: 0.86-5.23*4.44*4.20mm/ 0.91-5.12*4.42*4.45mm...
Ruby
$12,000Sale Price|20% Off
IGI Certified 6.45 Carat Burma Ruby & Diamond Ring in 18K White Gold
Located in KOWLOON, HK
The centerpiece of this ring is the magnificent 6.45 carat deep red Burma ruby. Known for its exquisite color and rarity, the Burma origin adds to its allure.
Diamond, Ruby, 18k Gold, White Gold
AIG Certified 4.10 Ct Burma Ruby 4.80 Ct Diamonds 18K Gold Pendant
Located in New Delhi, Delhi
An exquisite Burma Ruby and Diamonds pendant. Crafted with meticulous attention on details and with extremely care on manufacture.
Diamond, Ruby, 18k Gold
Red Burma Ruby Heart Shape Cut Diamonds Halo 18K White Gold Pendant Necklace
By Galt & Bro. Jewelers
Located in Tysons, VA
The design is a harmonious blend of elegance and sophistication, perfect for any occasion. 3.10 Carat Natural Red Burmese Ruby 2.00 CTW Natural White Diamonds 18K White Gold 18-17 i...
Diamond, Ruby, 18k Gold, White Gold
AGL Certified Burma Ruby, Yellow Diamond and Diamond Ring
Located in Chicago, IL
This beautifully unique cocktail ring boasts a bright oval mixed cut Burma ruby measuring 8.69 x 7.05 mm and weighing approximately 2.50 carats, surrounded by 20 round brilliant cut ...
Diamond, Ruby, Yellow Diamond, Gold, 18k Gold, Yellow Gold
AIG Certified 3.50 Ct Burma Ruby 1.60 Ct Diamonds 18K Gold Ring
Located in New Delhi, Delhi
This Burma Ruby and Diamonds ring is a breathtaking piece of jewelry that effortlessly combines elegance and opulence.
Diamond, Ruby, 18k Gold
8.25 Carat Oval Burma Ruby Marquise Princess Diamond in 18K Gold Statement Ring
Located in Miami, FL
18K yellow gold statement ring features an oval-cut Burma ruby center with marquise ruby accents totaling 6.10 carats and 2.15 carats of princess-cut diamonds in G-H color VS-SI clar...
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
AGL Certified 6.55 Carat Unheated Burma Ruby and Diamond Ring
By GEMME
Located in New York, NY
True Collectors Ruby Cushion Cut Ruby weighing 6.55 Carats, certified by AGL as unheated and from the mine of Myanmar or widely known as Burma.
Ruby, Diamond, 18k Gold, Yellow Gold, Platinum
6.5 Carat Diamond and 3.7 Carat Burmese Ruby Platinum Ribbon Design Brooch
Located in Bay Harbor Islands, FL
Mid Century Open Ribbon design brooch featuring 2 Burmese rubies, one oval and one cushion shaped, weighing approximately 3.70 Cts. in total, and 61 round cut diamonds weighing appr...
Diamond, Ruby, Platinum
AIG Certified 8.15 Carats Burma Rubies Diamonds 18k Gold Earrings
Located in New Delhi, Delhi
Earrings come in 18k gold with two pieces of Burma rubies, cabochon heart cut , of 8,15 carats, and round brilliant cut diamonds of 0,65 carats, F color and VS clarity.
Diamond, Ruby, 18k Gold
Contemporary 3.04ct Certified Oval Burmese Ruby and Diamond Halo Three Stone Rin
Located in London, England
A beautiful contemporary Burmese ruby and diamond ring set in platinum.The ring is composed of an oval mixed-cut Burmese ruby to the centre, flanked by two smaller Burmese rubie...
Diamond, Ruby, Platinum
GIA Natural Burma Ruby Oval Stud Earrings with Diamonds in Platinum & 14k Gold
Located in La Jolla, CA
GIA Natural Burma Ruby Oval Stud Earrings with Diamonds in Platinum/14k Oval Burma Ruby Stud Earrings feature two GIA certified Natural Burma Red Rubies, weighing 4.29 carats in tot...
Diamond, Ruby, 14k Gold, White Gold, Platinum
GIA Certified Dazzling Sunflowers No Heat Burmese Ruby and Diamond Studs
Located in New York, NY
18K WHITE GOLD 112 DIAMONDS, 0.74 CARATS 2 NO-HEAT BURMESE RUBIES, 1.52 CARATS GIA Certified Introducing our exquisite Flower Studs, a true marvel of our craftsmanship.
Diamond, Ruby, 18k Gold
Spectra Fine Jewelry 26.21 cts. Burma Ruby & Diamond Line Bracelet
By Spectra Fine Jewelry
Located in New York, NY
A true statement in fine jewelry, this Spectra Fine Jewelry ruby and diamond line bracelet showcases twenty-eight cushion-cut Burmese rubies totaling 26.21 carats, selected for vivid...
Diamond, Ruby, 18k Gold
$39,200Sale Price|20% Off
2.04 Ct GRS Certified Unheated Burma Ruby Pigeon Blood Color No heat
Located in bangkok, TH
GRS Certified Unheated Burma Ruby Pigeon Blood Color Fine Quality GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby Weight: 2.04 Ct Color: Vivid Red (Pigeon ‘s blood) ...
Ruby
Platinum 2.80ct Diamond and No-Heat Burma Ruby Brooch MF02-021926
By LB Exclusive
Located in Southampton, PA
Sparkling Diamonds with a total weight of 2.80 carats allow it to effortlessly catch the light, while a radiant 1.10 carat No-Heat Burma Ruby center stone adds a stylish pop of color.
Diamond, Ruby, Platinum
3 Carat Burma Ruby Diamond 14k Yellow Gold Wide Band Cocktail Ring
Located in Chicago, IL
Each ruby exhibits a stunning deep red hue, characteristic of desirable Burma origin stones.
Diamond, Ruby, 14k Gold, Yellow Gold
Superb 1.79 Carat Burmese Ruby Diamond Platinum Ring, GIA Certified
Located in Beverly Hills, CA
A super gem Burmese ruby takes center stage. It weighs 1.79 carats and has a rich and vibrant vivid pinkish-red color that is full of life and brilliance.
Diamond, Ruby, Platinum
IGI Certified 4.33 Carat Burma Ruby & Diamond Earrings in 18K White Gold
Located in KOWLOON, HK
Their natural inclusions, visible upon close inspection, add a unique touch that further accentuates their allure. A Treasure from Myanmar (Burma) These rubies hail from Myanmar, f...
Diamond, Ruby, 18k Gold, White Gold
Bulgari Natural No Heat Burma Ruby, Sapphire and Diamond Ring
By Bulgari
Located in New York, NY
The ruby accompanies a gemological report from AGL stating the country-of-origin as Burma with No Heat and No Clarity Enhancemen.
Diamond, Ruby, Sapphire, 18k Gold, Yellow Gold
$1,592Sale Price|20% Off
14K Yellow Gold Drop Earrings with GIA-Certified No-Heat Burma Rubies
By OGI Ltd
Located in New York, NY
Most rubies on the market are heat-treated to enhance their appearance—making untreated, GIA-certified rubies from Burma exceptionally rare and highly valuable.
Diamond, Ruby, Gold, 14k Gold, Yellow Gold
Shopping for an accessory featuring a deep red gem that is the color of heat and passion? Find unique estate and vintage Burmese ruby rings, Burmese ruby necklaces and other Burmese ruby jewelry on 1stDibs.
For centuries, the Mogok region of Burma (now Myanmar) has been the source of the highest-quality rubies, whose color is an intense red, almost vermilion. About 90 percent of the world’s rubies come from Mogok, leading to its nickname: the “valley of rubies.” The export of gems from this region is closely monitored by the government, which requires non-residents wanting to visit to get special permits.
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. Choosing a ruby ring can be a little like choosing a red lipstick. When it comes to these stones, the truest, most vivid reds are fiery, skewing slightly orange. Other shades are deeper, with blue undertones, for a pinker, raspberry color.
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.
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. (Given the stone's durability and its relationship with romance, a ruby engagement ring is a brilliant choice if your budget permits and your sense of style leans toward the unexpected.)
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. (Myanmar is known for its pigeon's blood rubies.)
When shopping for a vintage ruby ring — whether it's a ruby cocktail ring, a ruby solitaire or another accessory — 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 extraordinary antique and vintage Burmese ruby jewelry on 1stDibs.
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.