Natural Unheated Red Mozambique Ruby 1.16 carats with GIA Report / JupiterGem
Located in Los Angeles, CA
With its modest carat weight, oval shape, and untreated nature, this Unheated Mozambique Ruby stands as an appealing and valuable gemstone, suitable for various jewelry designs or as...
Ruby
$16,000Sale Price|20% Off
2.26ct AIGS Certificate Unheated Burma Ruby Pigeon Blood color no heat
Located in bangkok, TH
RMA123 2.26ct AIGS Certificate Natural Ruby No heated Burma Burmese Pigeon Blood color eye clean Gemstone GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby No heated ...
Ruby
$1,040Sale Price|20% Off
2.31 Ct ICA Certificate Unheated Star Ruby Burma transparent Pinkish red No heat
Located in bangkok, TH
RMA115～ 2.31 Ct ICA Certificate Natural Star Ruby unheated Burma transparent Pinkish red Gemstone GEM DESCRIPTION: Species: Natural Corundum Variety: Natural Star Ruby unheated Weig...
Ruby, Star Ruby
1.43Ct No heat GRS Certificate Natural Burma Ruby Unheated Red color Oval shape
Located in bangkok, TH
RMA130 1.43ct GRS Certificate Natural Burma Ruby Unheated red color oval shape gemstone GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby Unheated Weight: 1.43ct ...
Ruby
Natural Unheated Red Mozambique Ruby 1.15 carats with GIA Report / JupiterGem
Located in Los Angeles, CA
With its modest carat weight, untreated nature, and captivating features, this Mozambique Ruby stands as a valuable and versatile gemstone, perfect for unique jewelry creations or as...
Ruby
$2,160Sale Price|20% Off
36.27 Ct ICA Certificate Unheated Ruby Mozambique Pinkish Red color No heat
Located in bangkok, TH
RA85 ICA certified Natural Ruby Unheated huge size collection Name : Natural Ruby Weight :36.27 Carats Size:19.18*15.12*12.57mm Color: Pinkish Red Clarity: Clean Origin: Mozambique ...
Ruby
6.69 Ct No heat GRS Certificate Natural Burma Ruby MOGOK Unheated Color Red
Located in bangkok, TH
RMA110 6.69ct GRS Certificate Natural No heat Burma Ruby Mogok Color Red Eye clean Clarity Oval Gemstone GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Burma Ruby N...
Ruby
$35,200Sale Price|20% Off
Unheated 6.10 Ct Burma Ruby Pair, Mogok Mine, Eye Clean Clarity, Cushion Cut
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
Fine IGI Certified Deep Purple Pink Red Ruby 0.58ct Pear Cut Unheated Gem
Located in Birmingham, GB
Totally untreated and unheated, very rare for natural rubies. Gemstones displayed in the blister seal like this are very hard to photograph, some lines and reflections are shown that...
Ruby
$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
1.13 Ct No heat GIA Certificate Natural Burma Ruby Unheated Pigeon blood Color
Located in bangkok, TH
RMA133 1.13 Ct GIA Certificate Natural Ruby Burma Unheated pigeon blood Gemstone GEM DESCRIPTION Species: Natural Ruby Variety: Natural Ruby unheated Weight: 1.13ct Color: Pigeon b...
Ruby
GIA Certified Natural Ruby Deep Red 0.58ct Pear Teardrop Cut Loose Unheated Rare
Located in Birmingham, GB
GIA Certified Natural Ruby Deep Red 0.58ct Pear Teardrop Cut Loose Unheated Rare GIA Certified Natural Unheated Deep Red Pear Cut Ruby. 0.58 Carat ruby with fine deep red colour. Th...
Ruby
$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
$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
GIA And GUILD 4.07 Ct Natural Unheated Mozambique Oval Red Ruby Pigeons Blood
Located in Roma, IT
The complete absence of thermal enhancement greatly contributes to the rarity and collectability of this gemstone. Natural rubies combining this substantial size, Mozambique origin, ...
Ruby
$1,200Sale Price|20% Off
1.00 Ct AIGS Certificate Unheated Ruby Pigeon blood color eye clean No heat
Located in bangkok, TH
RA102 1.00 Ct AIG Certificate Natural Ruby Unheated Pigeon blood eye clean quality Mozambique Gemstone GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby Unheated Weigh...
Ruby
Vivid Red-Pink Unheated Oval Ruby, 0.66 ct, Mozambique, By True Gems
By True Gems
Located in บางรัก, TH
Vivid red-pink unheated oval ruby sku829 Weight: 0.66 ct Color: pink Size: 6.43 x 4.99 x 2.55 mm Origin: Mozambique Perfect cut, GFCO certificate
Ruby
$2,000Sale Price|37% Off
Pair 1.04 Ct GIA Certificate Unheated Burma ruby pigeon blood color No heat
Located in bangkok, TH
RMC36 Pair 1.04 Ct GIA Certificate Natural Burma ruby unheated pigeon blood color eye clean quality Gemstone GEM DESCRIPTION Species : Natural Corumdum Variety: Natural Ruby unheated...
Ruby
$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
$13,600Sale Price|20% Off
3.20 Ct GIA Certificate Unheated Burma Ruby Red color eye clean quality No heat
Located in bangkok, TH
RMA111 3.20 Ct GIA Certificate Natural ruby Burma unheated Red color eye clean quality Gemstone GEM DESCRIPTION Species : Natural Corumdum Variety: Natural Ruby Unheated Weight: 3.20...
Ruby
$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
$80,000Sale Price|20% Off
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 DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby Unheated Weight: 5.24ct Color: V...
Ruby
$4,800Sale Price|20% Off
1.25 Ct AIGS Certified Unheated Burma Ruby Pigeon Blood color eye clean no heat
By Wb gems
Located in bangkok, TH
RMA97 1.25 Ct AIGS Certified Natural Burma Ruby No heated Pigeon Blood color eye clean quality Gemstone GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby No heated Wei...
Ruby
$326Sale Price|30% Off
0.80 Carat Natural Reddish Pink Ruby, Oval Cut Loose Gemstone from Afghanistan
Located in Peshawar, PK
Natural Reddish Pink Ruby Loose Gemstone, Unheated Oval Cut Afghan Ruby with Rich Color, Fine Quality Collector Stone for High-End Custom Jewelry
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
Oscar Heyman GIA Unheated Gemstone Brooch/Pendant
By Oscar Heyman
Located in Los Angeles, CA
Gorgeous Oscar Heyman brooch/pendant. Featuring a 18.34 ct. Unheated yellow sapphire, emerald rounds, blue sapphire pear shapes, ruby marquise shapes, and white diamond rounds. Han...
Emerald, Ruby, Blue Sapphire, Yellow Sapphire
4.35 Carat GIA Certified Unheated Ruby Marquise Diamond Platinum Earrings
By Merkaba
Located in Beverly Hills, CA
Unheated rubies are among the most admired gemstones in fine jewelry because their color is completely natural.
Multi-gemstone, Ruby, White Diamond, Diamond, Platinum
9.91 Carat Unheated Star Ruby Cabochon Ring in Platinum with 1.71 Carat Diamond
By Merkaba
Located in Beverly Hills, CA
Details Center Stone: 9.91 carat Star Ruby, unheated, cabochon, vivid asterism Diamonds: 1.71 carats total, 48 round brilliant diamonds Metal: Platinum Top Length: 0.85 inches Ring S...
Diamond, White Diamond, Multi-gemstone, Ruby, Star Ruby, Platinum
0.4Ct Minimalist Tiny Burmese Unheated Ruby Pendant in Platinum
Located in Singapore, SG
Thank you for your understanding and continued support. Features : Main Gemstone - Burmese Unheated Ruby Weight of gemstones (1pc) - 0.4Ct Measurements of gemstones - 4.32x3.83mm...
Ruby, Platinum
GIA certified Unheated Ruby Necklace in 22k solid gold chain
Located in Singapore, SG
This pendant is a rare and unique piece, suitable for daily wear or as a thoughtful gift for your loved one. Features: Main Gemstone (1pc) - Unheated Ruby from Tanzania Weight of ...
Ruby, Yellow Gold, 22k Gold
21.05 Ct GIA Natural Star Ruby Unheated Platinum Ring with Diamond 14.5 Gram
Located in bangkok, TH
E074 21.05ct GIA Natural Star Ruby Unheated Total weight 14.5Gram Platinum ring 1-Main stone : 21.05ct Natural Natural Star Ruby Unheated gemstone 2-Surrounding stone: Natural d...
Ruby
Certified Burma Unheated Ruby and Diamond Pendant in 18k solid gold
Located in Singapore, SG
1.01Ct Burma Unheated Ruby and Diamond Pendant in 18k solid gold *Note: The gemstone has a surface-reaching inclusion that is not visible to the naked eye.
Diamond, Ruby, 18k Gold
2.66 Ct GIA Certificate Natural Unheated Burma Mogok Ruby Red color Ring 18k
Located in bangkok, TH
 E055 RMA112 GIA Certificate 2.66ct Natural unheated burma mogok Ruby Red color with Ring 18K Gold 1-Main stone : 2.66ct Natural Ruby Unheated Mogok burma Gemstone GIA 2-Surro...
Ruby
$45,600Sale Price|20% Off
5.46 Ct GRS GIA Two Certificate Natural unheated Burma Mogok Ruby Red color
Located in bangkok, TH
E051 GRS,GIA Two Certificate 5.46 Ct Natural unheated Burma Mogok Ruby Red color with Ring platinum Gold 1-Main stone : 5.46ct Natural Ruby Unheated Mogok burma Gemstone GRS,GIA ...
Ruby
$32,000Sale Price|20% Off
GRS Certificate 5.01 Ct Natural unheated Mogok Burma Ruby Red color with Ring
Located in bangkok, TH
E040 GRS Certificate 5.01 Ct Natural unheated Mogok Burma Ruby Red color with Ring platinum Gold 1-Main stone : 5.01ct Natural Ruby Unheated Mogok burma Gemstone GRS 2-Surroundi...
Diamond, Ruby, Platinum
Total 2.04ct No Heat Burma Melee Ruby Pendant in 18K Yellow Gold-Ruby Pendant
Located in Singapore, SG
**Gold Chain Not included and available for separate purchase Features: Main Gemstone - Natural Burmese Unheated Ruby Weight of gemstones (12pcs) - 2.04Ct (approx) Measurements o...
Ruby, Yellow Gold
No Heat Burma Melee Ruby Pendant Ball in 18K Yellow Gold-Ruby Charm
Located in Singapore, SG
Unheated Burmese rubies are rare and highly valued.
Ruby, 18k Gold, Yellow Gold
$70,400Sale Price|20% Off
GRS Certified 3.43 NO HEAT Ruby Diamond Ring
Located in Chicago, IL
🔥 Exquisite Rarity: 3.43 Carat GRS-Certified Red Unheated Ruby & Diamond Ring 🔥 Indulge in the epitome of luxury with this exceptional 3.43-carat GRS-certified Red unheated Ruby, ...
Diamond, Ruby, 18k Gold, Yellow Gold, Platinum
GIA Cert. 3.93 Carat No Heat Ruby & Diamond Vintage Cocktail Ring
Located in Miami, FL
For serious colored gemstone collectors, unheated rubies represent the pinnacle of corundum collecting, combining natural rarity with timeless appeal.
Diamond, Ruby, Gold, 18k Gold, White Gold, 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.
Are you shopping for diamonds and other loose gemstones to create your own custom jewelry?
Why might you purchase a diamond or gemstone “loose” — that is, on its own, not mounted in a piece of jewelry? Perhaps you’re a connoisseur looking to acquire a unique investment. The scarcity of high-quality colored diamonds, for instance, especially pink diamonds, means that their value increases over time; the same is true of rare Kashmir sapphires and Burmese rubies. Far rarer than diamonds, Paraiba tourmaline, discovered only in the 1980s, is treasured as much for its extraordinary color as its scarcity, both of which contribute to its high value.
A more common scenario would be that you’re hoping to create a very special piece of custom jewelry, such as an engagement ring or a milestone-birthday present, and want to personally select the most beautiful, unusual, or ultra-rare stone you can find and afford. Doing so adds to the romance and substance of the gift and can be a part of the story told as the jewel is passed from generation to generation.
If this sounds like you, read on for tips on becoming one of the world’s savviest gem hunters.
Educate yourself: When buying any piece of gem-set fine jewelry, you should familiarize yourself with the factors that determine a stone’s price. This will enable you to streamline your search for the perfect gem and have intelligent, productive conversations with sellers.
There is a wealth of information online, such as our diamond-buying guide and this overview of colored gemstones for engagement rings. The buying guides of the Gemological Institute of America (GIA), searchable by stone type, are also a widely trusted source for consumers venturing into the world of diamonds and gems for the first time.
Vet your vendor: If you peruse 1stDibs with any regularity, you know there is no shortage of vendors who deal in top-quality loose gemstones. (Read about our vetted sellers.) Finding a trustworthy, established dealer may be as easy as getting a recommendation from friends or family. And, although it may sound obvious, it pays to Google your candidates — and consult customer reviews — before making contact.
Harakh Mehta, designer and founder of the Mumbai, India–based fine-jewelry brand Harakh, has an innate understanding of proper client relations, especially when the customer is in unfamiliar territory. “Start chatting with the dealer, get to know them better," he says. "It’s very important to establish a comfort level. We never push a sale, as we want it to be a carefully considered purchase. So, if the client is not in a rush, we do it over a few virtual meetings or phone calls.”
Request documentation: The best dealers go to great lengths to furnish clients with documents verifying the quality rating, natural origin and provenance of a stone — showing, for example, that loose emerald hails from the famous Muzo mine in Colombia — and disclosing any treatments applied to enhance its appearance. (And who doesn't love emerald jewelry? The most valuable emeralds are the ones that have a deep bluish-green to true green color and no visible inclusions.)
If no grading report is available for a stone you are interested in, the dealer should be able to provide an authenticity document, such as an appraisal or info sheet, that has been signed by an in-house gemologist or professional appraiser. Google those names, too, for extra peace of mind.
Ask for videos and visuals: When transacting with a gem dealer online, you should always request real-time videos and photographs, since professional photos of a stone, usually on a white background, have likely been retouched for optimal presentation.
Read more about how to buy loose gemstones and find your dream gems today on 1stDibs.
