5.13 Ct GRS Certificate Unheated Burma Ruby Mogok gemstone Collection No heat
Located in bangkok, TH
RMA109 5.13 Ct GRS Certificate Natural Burma Mogok Ruby unheated gemstone Collection GEM
2010s Loose Gemstones
Ruby
5.13 Ct GRS Certificate Unheated Burma Ruby Mogok gemstone Collection No heat
Located in bangkok, TH
RMA109 5.13 Ct GRS Certificate Natural Burma Mogok Ruby unheated gemstone Collection GEM
Ruby
Gubelin Certified 16.8 Carat Burma Mogok No Heat Ruby Diamond Platinum Bracelet
Located in Kowloon, Hong Kong
Origin: Mogok, Burma (Myanmar) Total Ruby Weight: 16.8 Carats Treatment: No Heat / No
Diamond, White Diamond, Ruby, Platinum
GIA Gubelin Certified 2.78 Carat Burma Mogok No Heat Ruby Platinum Ring
Located in Kowloon, Hong Kong
. Untreated rubies of this caliber are exceedingly rare, with Mogok's historic mines yielding stones renowned
Ruby, Platinum
Gubelin Certified 2.22 Carat Burma Mogok No Heat Ruby White Diamond Gold Ring
Located in Kowloon, Hong Kong
carat oval-cut vivid Burmese no heat vivid red ruby originating from the Mogok mining region, a gem that
White Diamond, Ruby, Gold, 18k Gold
SSEF Certified 2.59 Carat Burma Mogok No Heat Ruby White Diamond Platinum Ring
Located in Kowloon, Hong Kong
oval-cut vivid Burmese no heat vivid red ruby originating from the Mogok mining region, a gem that
White Diamond, Ruby, Gold, 18k Gold, Platinum
$120,000Sale Price|20% Off
3.63-carat Natural Burma Mogok No Heat Vivid Red GRS Cushion Ruby Ring
By Antinori Fine Jewels
Located in Chicago, IL
the 3.63-carat Natural Burma Mogok No Heat Vivid Red GRS Cushion Ruby Ring, a true testament to
Diamond, Ruby, 18k Gold, Yellow Gold, Platinum
5.24 Ct Ruby Burma Mogok Unheated Vivid Red color eye clean quality No heat
Located in bangkok, TH
5.24 Ct Natural Ruby Burma Mogok Unheated Vivid Red color eye clean quality Gemstone GEM
Ruby
Emilio Jewelry Gia Certified 6.30 Burma Mogok No Heat Pigeons Blood Earrings
By Emilio!
Located in New York, NY
famous Mogok region. One ruby like these is hard enough to find, and here we have a matched pair of them
Ruby
3.30 Ct GRS Certificate Natural Mogok Myanmar No heated Pigeon Blood Color
Located in bangkok, TH
GG46 Special price No heat Mogok Myanmar ruby unheated pigeon Blood Color GRS Certificate GEM
Ruby
GIA Certified 1.20 Carat Burma No Heat Ruby White Diamond Gold Earrings
Located in Kowloon, Hong Kong
GIA Certified 1.20 Carat Burma No-Heat Ruby & Diamond Gold Earrings These exquisite earrings
White Diamond, Ruby, Gold, 18k Gold, White Gold
7.70 Carat Burma No Heat Spinel Cabochon Ruby White Diamond 18K Gold Earrings
Located in Kowloon, Hong Kong
Presenting a pair of exceptional 7.7 carat Burma no heat spinel cabochon, ruby, and diamond
White Diamond, Ruby, Spinel, 18k Gold, White Gold
GRS Certified 7.88 Carat Burmes Ruby And Diamond Earrings In 18 Karat White Gold
By Rewa Jewellery
Located in Bangkok, TH
gold. It has 2 centre pieces of oval shaped Burma No Heat Rubies Mogok origin, Purple Red in colour
Diamond, Ruby, 18k Gold, White Gold
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
Diamond, Ruby, 18k Gold
Edwardian 'No Heat' Burmese Ruby and Diamond Ring
Located in San Francisco, CA
A ravishing-red, two carat, old mine, natural no-heat 'Mogok' ruby radiates from within a sparkling
Ruby, Diamond, Platinum
5.16 Carat GIA Certified Burma "Mogok" No Heat Ruby Cabochon
Located in Hong Kong, HK
5.16 Carat GIA Certified Unheated Burmese "Mogok" Ruby Cabochon: A rare gemstone, it is a 5.16
Ruby
2.45 Carat GRS Certified Burma No Heat Cushion-Cut "Mogok" Ruby
Located in Hong Kong, HK
2.45 Carat GRS Certified Burma No Heat Cushion-Cut "Mogok" Ruby: A rare gem, it is a 2.45 carat
Ruby
0.52 Carat GRS Certified Burma No Heat Pigeon's Blood Red "Mogok" Ruby
Located in Hong Kong, HK
0.52 Carat GRS Certified Burma No Heat Pigeon's Blood Red "Mogok" Ruby: A gorgeous gem, it is a
Ruby
7.97 Carat GRS Certified Burma "Mogok" No Heat Ruby Cabochon and Diamond Ring
Located in Hong Kong, HK
7.97 Carat GRS Certified Burma "Mogok" No Heat Ruby Cabochon and Diamond Ring: A beautiful ring
Diamond, Ruby, 18k Gold, White Gold, Yellow Gold
8.33 Carat GRS Certified Burma Mogok No Heat Star Ruby White Diamond Gold Ring
Located in Hong Kong, HK
8.33 Carat GRS Certified Burma Mogok No Heat Star Ruby White Diamond Gold Ring: A stunning ring
White Diamond, Ruby, Star Ruby, Gold, 18k Gold, White Gold
$375,000
W 0.37 in D 0.25 in L 0.5 in
5.34 Carat Brazilian Alexandrite Oval Loose Gem AGL Certified – Merkaba Jewelry
By Merkaba
Located in Beverly Hills, CA
Ultra-Fine Rare Brazilian Alexandrite Gemstone by Merkaba Jewelry Beverly Hills. Merkaba Jewelry Beverly Hills proudly presents an extraordinary treasure: a 5.34 carat Brazilian Ale...
Alexandrite, Chrysoberyl, 18k Gold, Rose Gold, White Gold, Yellow Gold, ...
$53,700Sale Price|40% Off
W 0.39 in D 0.24 in L 0.46 in
Rare 5.73 Carat Natural Red Spinel Emerald Cut – Collector's Luxury Gemstone
By Merkaba
Located in Beverly Hills, CA
Exceptional 5.73 Carat Natural Red Spinel – A Rare Collector's Gem By Merkaba Beverly Hills. Discover unparalleled luxury with this 5.73 carat natural Red Spinel, an extraordinary u...
Spinel, Emerald, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum,...
$3,800
W 0.24 in L 0.32 in
1.55 Carat Oval Tsavorite Garnet Loose Gemstone by Merkaba Jewelry Beverly Hills
By Merkaba
Located in Beverly Hills, CA
Vivid 1.55 Carat Tsavorite Garnet Oval: A Rare Gemstone for Custom Jewelry & Collectors - Merkaba Beverly Hills. Presenting a 1.55 carat Tsavorite Garnet, exquisitely crafted in...
Garnet, Tsavorite, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
GRS Certified 1.51 Carat Natural Unheated Padparadscha Sapphire
Located in Los Angeles, CA
In Sinhalese, Padparadscha means 'Lotus Blossom' and the term has come from the word Padmarag in Sanskrit, meaning 'one having the colour of a lotus. This 1.51 carats with GRS Report...
Sapphire, Padparadscha Sapphire
$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
2.68 Ct GIA Certification Natural Emerald Russia No Oil eye clean Gemstone
Located in bangkok, TH
EMA151 2.68 Ct GIA Certification Natural Emerald Russia No Oil eye clean Gemstone GEM DESCRIPTION Species: Natural Beryl Variey: Natural Emerald No oil Weight: 2.68ct Color: green...
Emerald
Natural Horsetail 1.21 Ct Russian Demantoid Loose Gemstone
By Tsarina Jewels
Located in Bangkok, TH
Ural Mountains of Russia is the most important and consistent source of the rarest variety of Garnets - Demantoid. The stones from this region are famous for their vivid green hue,...
Garnet
$4,640Sale Price|20% Off
1.25 Ct AIGS Certified Unheated Burma Ruby Pigeon Blood color eye clean No heat
Located in bangkok, TH
RMA97 1.25 Ct AIGS Certified Natural Burma Ruby Unheated Pigeon Blood color eye clean quality Gemstone GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby Unheated Weigh...
Ruby
$5,082
W 0.22 in D 0.14 in L 0.28 in
Natural Unheated Red Mozambique Ruby Gemstone 1.32 carats with GIA Report
Located in Los Angeles, CA
Indulge in the timeless elegance of a 1.32 carats Mozambique Ruby, meticulously certified by GIA. Its cushion shape and brilliant/step cut epitomize sophistication, accentuating its ...
Ruby
$24,850
W 0.59 in D 0.45 in L 0.63 in
21.14 Carat Cushion Cut Tanzanite Loose Gemstone, 15.80 x 14.90 mm By Merkaba
By Merkaba
Located in Beverly Hills, CA
A stunning 21.14 carat cushion cut tanzanite loose gemstone, offered unmounted and brand new by Merkaba Jewelry Beverly Hills. The stone displays a rich blue violet presence with imp...
Tanzanite, 18k Gold, Rose Gold, Yellow Gold, Platinum
6.19 Carat No Oil Colombian Emerald Ring AGL Certified
Located in Miami, FL
This 6.19 carat no oil Colombian emerald is one of the finest emeralds in the market. Combining a legendary origin, superb color, transparency, and best of all its crystal. AGL Certi...
Diamond, Emerald, Gold, 18k Gold, White Gold, Yellow Gold
Loose Paraiba Tourmaline - oval cut - light blue - 29.97cts
Located in SYDNEY, AU
A loose oval cut light blue Paraiba Tourmaline of 29.97cts. This stone is available to be set into the piece of your choice or kept to be admired on its own.
Tourmaline, Paraiba
$1,800,000 / set
No-Heat Burmese Ruby & Diamond Earrings, GRS & Gübelin Certified
Located in New York, NY
A dazzling display of rarity and radiance, these high-jewelry earrings center a matched pair of oval-cut Burmese rubies, totaling 10.34 carats. Certified No Heat by both GRS and Gübe...
Ruby, Diamond, 18k Gold
$16,000Sale Price|20% Off
2.87 Ct AIGS Certified Unheated Ruby Pigeon blood color eye clean No heat
Located in bangkok, TH
RMA113 2.87 Ct AIGS Certified Natural Ruby Unheated Pigeon blood color eye clean quality Tajikistan Gemstone GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby Unheat...
Ruby
$23,933
W 0.38 in D 0.19 in L 0.44 in
Natural Unheated Orange Padparadscha Sapphire Stone 4.54 carats with GRS Report
Located in Los Angeles, CA
Please inquire for more videos/photos. Details Identification: Natural Unheated Padparadscha • Carat: 4.54 carats • Shape: oval • Measures: 11.13 x 9.51 x 4.63 mm • Color: pinkish-...
Sapphire, Padparadscha Sapphire
GIA Certified - 1.72 Carats Fancy Intense Orangy Pink Diamond
Located in Ramat Gan, IL
Introducing the Exquisite GIA Certified 1.72 Carats Fancy Intense Orangy Pink Diamond Elevate your jewelry collection to new heights with our stunning GIA Certified 1.72 Carats Fanc...
Diamond, Pink Diamond
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.