Ring with emerald, ruby, sapphire and brilliant cut diamonds 18k gold
Located in The Hague, ZH
weight : 8.7 grams set with : - 1 x 4.4 mm x 2.5 mm oval-shaped cabochon cut with oil-heated ruby total approx. 0.40 carat color : red clarity : SI - 1 x 4.4 mm x 2.5 mm oval-s...
Diamond, Emerald, Ruby, Sapphire, 18k Gold
Ring with ruby, old European and brilliant cut diamonds up o 0.86ct 14k gold
Located in The Hague, ZH
weight : 2.3 grams set with : - 16 x 2.0 mm princess facet cut with oil-heated ruby total approx. 1.01 carat color : red clarity : SI Gemstones are often treated to improve colo...
Diamond, Ruby, 14k Gold
ART DECO STYLE 14k gold ring with ruby, old mine cut and silngle cut diamonds
Located in The Hague, ZH
weight : 7.2 grams set with : - 18 x 3.7 mm – 2.6 mm x 2.0 mm taper and pentagonal shape oil-heated ruby total approx. 2.00 carats color : red clarity : SI Gemstones are often t...
Diamond, Ruby, 14k Gold
$13,560Sale Price|20% Off
GIA CERTIFIED Burmese Ruby No-Heat Intense Vivid Red 3.40 Carats GIA-1216189087
Located in Miami, FL
Collateral: This Burmese intense red ruby gemstone is accompanied by a certificate report from the GIA laboratory number 1216189087 stating is a natural earth mined not-heated Burmes...
Ruby
$2,784Sale Price / item|20% Off
GIA Certified Natural Ruby and Marquise Diamond Ring in 14K Solid White Gold
Located in Hong Kong, HK
Product Specifications: - 0.60ct 5mm High quality natural Round Cut Heated Ruby at the center - 6 Round Brilliant cut Diamonds, total carat around 0.09ct - 4 Marquise cut Diamonds, t...
Diamond, Ruby, White Gold
$999Sale Price|20% Off
Pinkish Red Natural Ruby 1 Carat Oval Cut Loose Gemstone for Fine Jewelry Making
Located in Peshawar, PK
Measuring 7.16 x 4.95 x 2.94 mm, this heated ruby is ideal for an engagement ring, pendant, or any refined custom jewelry design.
Ruby
Pigeon Blood Oval Shape Ruby and Marquise Diamonds Engagement Ring Yellow Gold
Located in Hong Kong, HK
Product Specifications: - 2.00 High Quality Natural Oval Cut Heated Ruby (Pigeon Blood) - 4 Marquise cut High Quality Natural Diamonds with 0.24ct - 6 Round Brilliant Cut High Qualit...
Diamond, Ruby, 18k Gold, Yellow Gold
Gubelin Certificate 5.18 Ct No heated Burma Ruby
Located in bangkok, TH
GG15: Gubelin Certificate Bumra ruby No heated Main Stone Weight: 5.18ct Name: Natural Ruby unheated Treatment : No heat /No treatment Color: Red Cutting and Shape : Excellent O...
Ruby
6.10 Ct Pair No heated Burma Ruby Mogok mine
Located in bangkok, TH
GG17: 6.10ct Pair Unheated Burma ruby Mogok mine * commercial quality fine clarity nearly eye clean Low budget GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby ...
Ruby
GIA-Certified Burma Ruby Heated Treatment Pear Shape 1.7Ct – 7.79x6.91x4.22mm
Located in Columbus, OH
Specifications: Gemstone: Ruby Treatment: Heated Weight: 1.7 carats Size: 7.79x6.91x4.22mm Shape: Pear Color: Red Hardness: 9 (Mohs Scale) Country of Origin: Burma GIA 5231900663 ...
Ruby
Natural Heated Loose Madagascar Red Ruby 2.26ct GIA Pear Shape
Located in Carmel By The Sea, CA
Natural Heated Madagascar Ruby 2.26ct GIA Pear Shape Loose Gemstone This item is offered on consignment on behalf of a client; all serious and reasonable offers are presented for co...
Ruby
6.57 Carat Non Heated Cabochon Star Ruby Diamond Engagement Ring
By Roshe Jewels
Located in Los Angeles, CA
6.57 Carat Non Heated Cabochon Star Ruby Diamond Engagement Ring Star Ruby Diamond Ring with a Oval Cut Cabochon 5.51 Carat Ruby which is surrounded by 82 Round Cut Diamonds that we...
Diamond, Ruby, Star Ruby, 14k Gold, White Gold
GIA Certified Heated Burma Ruby Cushion Cut - 6.5x6x4.67mm 1.49ct Loose Gemstone
Located in Columbus, OH
Specifications: Gemstone: Ruby Treatment: Heated Weight: 1.49 carats Size: 6.49x5.98x4.67mm Shape: Cushion Color: Red Hardness: 9 (Mohs Scale) Country of Origin: Burma GIA 22319085...
Ruby
GIA Certified Heated Burma Ruby Cushion Cut Loose Gemstone 1.77cts 6.81x6.27mm
Located in Columbus, OH
Specifications: Gemstone: Ruby Treatment: Heated Weight: 1.77 carats Size: 6.81x6.27x4.56mm Shape: Cushion Color: Red Hardness: 9 (Mohs Scale) Country of Origin: Burma GIA 22319085...
Ruby
GIA Certified Burma Ruby Heated Oval 6.54x5.86mm 1.36cts – Natural Red Gemstone
Located in Columbus, OH
Specifications: Gemstone: Ruby Treatment: Heated Weight: 1.36 carats Size: 6.54x5.86x4.06mm Shape: Oval Color: Red Hardness: 9 (Mohs Scale) Country of Origin: Burma GIA 1236908551 ...
Ruby
GIA Certified Burma Ruby 7x5.8mm 1.37 Carats Loose Gemstone – Naturally Heated
Located in Columbus, OH
Specifications: Gemstone: Ruby Treatment: Heated Weight: 1.37 carats Size: 7.03x5.8x3.89mm Shape: Oval Color: Red Hardness: 9 (Mohs Scale) Country of Origin: Burma GIA 2235908558 ...
Ruby
GIA Certified 1.74ct Burma Ruby Heated Pear Cut 8.43x6.42mm – Loose Gemstone
Located in Columbus, OH
Specifications: Gemstone: Ruby Treatment: Heated Weight: 1.74 carats Size: 8.43x6.42x4.5mm Shape: Pear Color: Red Hardness: 9 (Mohs Scale) Country of Origin: Burma GIA 1232934481 ...
Ruby
Antique 3.00 Carat Burma Ruby and 1.02 Carat Diamond Yellow Gold Brooch
Located in Jesmond, Newcastle Upon Tyne
NOTE: * This documentation accredits the ruby to have originated in Myanmar (Burma) and certifies that the gemstone shows no indications of heating; non-heated rubies are a scarcity.
Diamond, Ruby, 15k Gold, Yellow Gold
Vintage 1.70Ct Thai Ruby and 1.68Ct Diamond Platinum Cocktail Ring 1975
Located in Jesmond, Newcastle Upon Tyne
NOTE: * This documentation accredits the ruby originating in Thailand (Siam) and certifies that the gemstone shows no indications of heating; non-heated rubies are a scarcity.
Diamond, Ruby, Platinum
0.98 Ct GRS Certificate Natural Burma Ruby No heated Red color
Located in bangkok, TH
RMA127 GRS Certificate Natural Burma Ruby Unheated red color round shape gemstone GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby Unheated Weight: 0.98ct Colo...
Ruby
$1,360Sale Price|28% Off
2.08Ct GIA Certificate Natural Ruby Burma pigeon blood color heated Gemstone
Located in bangkok, TH
RHA7 2.08Ct GIA Certificate Natural Ruby Burma pigeon blood color heated Gemstone GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby Burma Weight: 2.08 Color: Pige...
Ruby
Vintage 1.70 Carat Thai Ruby Diamond White Gold Cluster Ring
Located in Jesmond, Newcastle Upon Tyne
NOTE: * This documentation accredits the ruby originating in Thailand (Siam) and certifies that the gemstone shows no indications of heating; non-heated rubies are a scarcity.
Diamond, Ruby, White Gold, Platinum
Pigeon Blood Ruby & Diamond Pendant Necklace in 18K White Gold IGI Certificate
Located in Viena, Viena
high-quality pendant, no savings were made on the material, isn't it wonderfully fine and noble?a pigeon blood ruby from Mozambique, a more passionate red is hard to find, an untre...
Diamond, Ruby, 18k Gold, White Gold
194.26 Carats Ruby Mozambique Cushion Faceted Cutstone Layout Heated Natural Gem
Located in Jaipur, RJ
194.26 Carats Ruby Mozambique Cushion Faceted Cut stone Layout Heated Natural Gem Weight: 194.26 Carats Pieces: 15 Shape: Faceted Cushion cut stone
Ruby
240.99 Carats Ruby Mozambique Cushion Faceted Cutstone Layout Heated Natural Gem
Located in Jaipur, RJ
240.99 Carats Ruby Mozambique Cushion Faceted Cut stone Layout Heated Natural Gem Weight: 240.99 Carats Pieces: 17 Shape: Faceted Cushion cut stone
Ruby
153.79 Carats Ruby Mozambique Cushion Faceted Cutstone Layout Heated Natural Gem
Located in Jaipur, RJ
153.79 Carats Ruby Mozambique Cushion Faceted Cut stone Layout Heated Natural Gem Weight: 153.79 Carats Pieces: 13 Shape: Faceted Cushion cut stone
Ruby
222.53 Carats Ruby Mozambique Cushion Faceted Cutstone Layout Heated Natural Gem
Located in Jaipur, RJ
222.53 Carats Ruby Mozambique Cushion Faceted Cut stone Layout Heated Natural Gem Weight: 222.53 Carats Pieces: 19 Shape: Faceted Cushion cut stone
Ruby
150.41 Carats Ruby Mozambique Cushion Faceted Cutstone Layout Heated Natural Gem
Located in Jaipur, RJ
150.41 Carats Ruby Mozambique Cushion Faceted Cut stone Layout Heated Natural Gem Weight: 150.41 Carats Pieces: 13 Shape: Faceted Cushion cut stone
Ruby
144.35 Carats Ruby Mozambique Cushion Faceted Cutstone Layout Heated Natural Gem
Located in Jaipur, RJ
144.35 Carats Ruby Mozambique Cushion Faceted Cut stone Layout Heated Natural Gem Weight: 144.35 Carats Size: 8x9 To 18x14 MM Pieces: 22 Shape: Faceted Cushion cut stone
Ruby
1.53 Carat A.G.L Certified Heated Cushion Cut Ruby Gemstone
Located in Bethesda, MD
• Gemstone: Ruby • Weight: 2.10 Carats • Shape: Cushion • Origin: Thailand • Heated • Dimensions: 6.78 x 6.72 x 3.66mm
Ruby
GIA Heated Burma Ruby Oval and Baguette Diamond Ring in Platinum
Located in Los Angeles, CA
Beautiful GIA 2.03 ct. Burma purplish red ruby oval with 0.47 ct. good quality white diamond baguettes. Handmade in platinum. Ring size 9.25. Comes with a GIA certificate.
Diamond, Ruby, Platinum
9.21 Carats Mozambique Ruby Cushion Cut stone For Fine Jewelry Heated Gemstone
Located in Jaipur, RJ
9.21 Carats Mozambique Ruby Cushion Cut stone For Fine Jewelry Heated Gemstone Weight: 9.21 Carats Size: 11x11.5x7.5 MM Pieces: 1 Shape: Cushion cut
Ruby
GIT Certified 0.57 Carat Natural Burma Ruby Round Heated Diamond Ring
Located in บางรัก, TH
18kt white gold ring with diamonds Gold colour & karat: White gold 18kt Weight: 5.743 grams Set with- Stone type: Natural Corundum (RUBY) Shape: Round Carat: 0.57 c...
Diamond, Ruby, 18k Gold, White Gold
173.59 Carats Ruby Mozambique Pear Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
173.59 Carats Ruby Mozambique Pear Faceted Cut stone Layout Heated Natural Gem Weight: 173.59 Carats Pieces: 14 Shape: Faceted Pear cut stone
Ruby
254.39 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
254.39 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem Weight: 254.39 Carats Pieces: 19 Shape: Faceted Oval cut stone
Ruby
118.36 Carats Ruby Mozambique Pear Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
118.36 Carats Ruby Mozambique Pear Faceted Cut stone Layout Heated Natural Gem Weight: 118.36 Carats Pieces: 16 Shape: Faceted Pear cut stone
Ruby
206.42 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
206.42 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem Weight: 206.42 Carats Pieces: 17 Shape: Faceted Oval cut stone
Ruby
159.61 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
159.61 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem Weight: 159.61 Carats Pieces: 11 Shape: Faceted Oval cut stone
Ruby
243.08 Carats Ruby Mozambique Pear Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
243.08 Carats Ruby Mozambique Pear Faceted Cut stone Layout Heated Natural Gem Weight: 243.08 Carats Pieces: 11 Shape: Faceted Pear cut stone
Ruby
267.02 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
267.02 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem Weight: 267.02 Carats Pieces: 21 Shape: Faceted Oval cut stone
Ruby
448.41 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
448.41 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem Weight: 448.41 Carats Pieces: 15 Shape: Faceted Oval cut stone
Ruby
172.43 Carats Ruby Mozambique Pear Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
172.43 Carats Ruby Mozambique Pear Faceted Cut stone Layout Heated Natural Gem Weight: 85.50 Carats Pieces: 18 Shape: Faceted Pear cut stone
Ruby
88.13 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
88.13 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem Weight: 88.13 Carats Size: 11X9 To 17.5x13.5MM Pieces: 15 Shape: Faceted Oval cut stone
Ruby
73.76 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
73.76 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem Weight: 73.76 Carats Size: 11x10 To 14x10 MM Pieces: 17 Shape: Faceted Oval cut stone
Ruby
90.05 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
90.05 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem Weight: 90.05 Carats Size: 12X9 TO 21X15 MM Pieces: 15 Shape: Faceted Oval cut stone
Ruby
85.50 Carats Ruby Mozambique Pear Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
85.50 Carats Ruby Mozambique Pear Faceted Cut stone Layout Heated Natural Gem Weight: 85.50 Carats Size: 12.5x7 To 20x13 MM Pieces: 15 Shape: Faceted Pear cut stone
Ruby
96.75 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
96.75 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem Weight: 96.75 Carats Size: 8x10 To 21x17.5 MM Pieces: 13 Shape: Faceted Oval cut stone
Ruby
58.39 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
58.39 Carats Ruby Mozambique Oval Faceted Cut stone Layout Heated Natural Gem Weight: 58.39 Carats Size: 9x8 To 15x11 MM Pieces: 13 Shape: Faceted Oval cut stone
Ruby
1.00 Ct GRS Certificate Natural Burma Ruby No heated Pigeon Blood Color
Located in bangkok, TH
RMA126 GRS Certificate Natural Burma Ruby Unheated pigeon blood color gemstone GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby Unheated Weight: 1.00ct Color: p...
Ruby
GRS Certified Burmese Ruby and White Diamond Necklace, 67. 14ct 18K White Gold
Located in Great Neck, NY
In fact, fine heated rubies from renowned origins such as Burma and Mozambique remain highly sought after by connoisseurs and gem investors, as they offer the same striking “pigeon b...
Diamond, White Diamond, Ruby, Sapphire, Blue Sapphire, Gold, 18k Gold, W...
GRS Certified Burmese Ruby and White Diamond Necklace, 67. 14ct 18K White Gold
Located in Great Neck, NY
In fact, fine heated rubies from renowned origins such as Burma and Mozambique remain highly sought after by connoisseurs and gem investors, as they offer the same striking “pigeon b...
Padparadscha Sapphire , Paraiba, Blue Sapphire, Sapphire, Ruby, White Di...
85.87 Carats Ruby Mozambique Heart Faceted Cut stone Layout Heated Natural Gem
Located in Jaipur, RJ
85.87 Carats Ruby Mozambique Heart Faceted Cut stone Layout Heated Natural Gem Weight: 85.87 Carats Size: 9.5x10 To 13x14 MM Pieces: 15 Shape: Faceted Heart cut stone
Ruby
119.24 carats ruby Mozambique cut stone cushion 19 Pieces layout heated natural
Located in Jaipur, RJ
119.24 carats ruby Mozambique cut stone cushion layout heated natural gemstone Weight: 119.24 Carats Size: 8x9 to 17x13 MM Shape: cushion cut Pieces - 19
Ruby
222.27 carats ruby Mozambique cut stone cushion 33 Pieces layout heated natural
Located in Jaipur, RJ
222.27 carats ruby Mozambique cut stone cushion 33 Pieces layout heated natural Weight: 222.27 Carats Size: 9x9 to 15x14 MM Shape: cushion cut Pieces - 33
Ruby
$49,520Sale Price|20% Off
Natural Heated Mozambique Ruby and Diamond Necklace in 18K Yellow Gold
By Tresor Collection
Located in Coral Gables, FL
Tresor Beautiful Necklace feature 56.60 total carats of Ruby & 2.19 carats of Diamond. The Necklace is an ode to the luxurious yet classic beauty with sparkly gemstones and feminine ...
Diamond, Ruby, Yellow Gold
$19,800Sale Price|20% Off
Natural Heated Mozambique Ruby And Diamond Earrings in 18K Yellow Gold
By Tresor Collection
Located in Coral Gables, FL
Tresor Diamond Earring features 0.79 cts diamond and 27.71 cts Ruby in 18k white gold. The Earring are an ode to the luxurious yet classic beauty with sparkly diamonds. Their contemp...
Diamond, Ruby, Yellow Gold
$4,500Sale Price|20% Off
Natural Heated Mozambique Ruby and Diamond Ring in 18K Yellow Gold
By Tresor Collection
Located in Coral Gables, FL
Tresor Diamond Ring features 0.67 cts diamond and 6.72 cts ruby in 18k white gold. The Ring are an ode to the luxurious yet classic beauty with sparkly diamonds. Their contemporary a...
Diamond, Ruby, Yellow Gold
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.