0.66 сt, Vivid red-pink unheated oval ruby
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
Unheated Mozambique Ruby 2.35 carats certified by GUILD
Located in Khet Bang Rak, 10
Unheated 2.35 carats Mozambique pear shaped ruby, a perfect size for a engagement ring or a special pendant to be made. Rubies are known as the king of gems, and these rubies are so...
Ruby
Exceptional Untreated 2.03ct Mozambique Pigeon's Blood Ruby, Swiss Certified
Located in London, GB
This exceptional untreated 2.03 carat ruby displays the highly sought-after "pigeon's blood" colour — the deep, vivid red regarded as the pinnacle of ruby grading. Its saturation and...
Ruby
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
$10,361Sale Price|50% Off
Exceptional Untreated 1.51 carats Vivid Red Ruby - Swiss Certified
Located in London, GB
This exceptional, untreated and stunningly beautiful 1.51 carats Pigeon's Blood red ruby originates from Mozambique, one of the leading modern sources of fine quality rubies. Certi...
Ruby
1.05 cts, Certified unheaat faceted pigeon blood ruby
By True Gems
Located in บางรัก, TH
Certified unheaat faceted pigeon blood ruby sku672 Weight: 1.05 cts Size: 9.02х4.37х2.92 mm Color: pigeon blood red Origin: Mozambique Pear shape GFCO certified
Ruby
$11,601Sale Price|30% Off
Exceptional, Untreated 1.56 carat Pigeon's Blood Ruby - Swiss Certified
Located in London, GB
This exceptional, untreated and stunningly beautiful pigeon's blood ruby originates from Mozambique, one of the leading modern sources of fine quality sapphires. Certified by Gem R...
Ruby
1.27 Carat GIA Certified Oval No Heat Ruby
Located in Great Neck, NY
GIA Certified Oval Ruby 1.27 Carats (7.70x6.17x2.79) mm NO HEAT
Ruby
3.89 Carat Thai Oval Ruby with GIA Certificate
Located in New York, NY
3.89 Carat Thai Oval Ruby, GIA Report 6173102771. 10.97 x 8.75 x 4.19mm. Natural, heated, red.
Ruby
$6,631Sale Price|60% Off
Exceptional Untreated 1.53 carats Vibrant Red Ruby (Swiss Certified)
Located in London, GB
This exceptional, untreated and stunningly beautiful 1.53 carats Vibrant Red Ruby originates from Mozambique, one of the leading modern sources of fine quality sapphires. Certified...
Ruby
Exceptional Untreated 2.15 carat Pigeon's Blood Ruby - Swiss Certified
Located in London, GB
This exceptional, untreated and stunningly beautiful 2.15 carat Pigeon's Blood ruby originates from Mozambique, one of the leading modern sources of fine quality sapphires. Certifi...
Ruby
$10,358Sale Price|50% Off
Highly Exceptional Untreated 1.10carats Pigeon's Blood Ruby, Swiss Certified
Located in London, GB
This exceptional, untreated and stunningly beautiful 1.10 carats Pigeon's Blood Ruby originates from Mozambique, one of the leading modern sources of fine quality sapphires. Certif...
Ruby
0.63Ct GUILD Certificate Ruby Burma Pigeon blood Color Eye Clean quality
Located in bangkok, TH
RMA75 0.63 Cts Guild Certified Unheated Ruby Burma Pigeon Blood Color Eye clean quality GEM ESCRIPTION: Species: Natural Corumdum Variety: Natural Ruby Weight: 0.63ct Color...
Ruby
39.75 Carat No Heat Vivid Red Ruby Sugarloaf Pair
Located in Hong Kong, HK
39.75 Carat No Heat Vivid Red Ruby Sugarloaf Pair: A gorgeous and rare gem, it is a pair of natural unheated sugarloaf-cut vivid red rubies weighing 39.75 carat. Hailing from Tanzan...
Ruby
1.27 Carat Heart-Shaped Mozambique No Heat Ruby
Located in Hong Kong, HK
A rare gem, it is a natural heart-shaped intense red ruby weighing 1.27 carat. Hailing from Mozambique, the ruby is unheated, has excellent cutting proportions, and possesses an int...
Ruby
ALGT Certified 1.72 Carat Natural Tanzania Deep Red Ruby
Located in AMSTERDAM, NL
Offered beautiful 1.76 carat Deep Red Ruby. ALGT certificate is available. Weight: 1.76 Carats Shape: oval mixed cut Gem Dimensions: 8.92 x 6.36* 3.27 mm Color: Deep Red Treatment: ...
Ruby
$2,320Sale Price|20% Off
Matching oval rubies untreated matching pair 100% natural certified 6.5mm
Located in Jupiter, FL
Rare matching pair of rubies, untreated and certified. NATURAL GEMSTONE(S): NATURAL RUBY Clarity/Color: Slightly Included/Pinkish Red Cut: Rectangular 6.5x5mm Treatment: none MTP ...
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
GIA And GUILD 4.07 Ct Natural Unheated Mozambique Oval Red Ruby Pigeons Blood
Located in Roma, IT
Offered as a loose gemstone, this extraordinary ruby also presents a unique opportunity to create a truly bespoke jewel.
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
GIA Certified 1.55 Carat Burma No Heat Natural Oval Cut Ruby
Located in Kowloon, Hong Kong
This beautiful 1.55 carat Burma no-heat vivid red ruby is a rare and valuable gemstone, distinguished by its exceptional color and provenance. Sourced directly from the renowned mine...
Ruby
GIA Certified 1.12 Carat Burma No Heat Natural Cushion Cut Ruby
Located in Kowloon, Hong Kong
This beautiful 1.12 carat Burma no-heat vivid red ruby is a rare and valuable gemstone, distinguished by its exceptional color and provenance. Sourced directly from the renowned mine...
Ruby
1.49 Carat GIA Certified No Heat Pear Shape Ruby
Located in Great Neck, NY
GIA Certified Pear Shape Ruby 1.49 Carats (8.67x5.42x3.65) mm NO HEAT
Ruby
1.36 Carat GIA Certified No Heat Pear Shape Ruby
Located in Great Neck, NY
GIA Certified Pear Shape Ruby 1.36 Carats (8.41x5.95x3.12) mm NO HEAT
Ruby
GIA Certified 1.66 Carat Burma No Heat Natural Cushion Cut Ruby
Located in Kowloon, Hong Kong
This stunning 1.66 carat Burma no-heat vivid red ruby is a rare and valuable gemstone, distinguished by its exceptional color and provenance. Sourced directly from the renowned mines...
Ruby
GIA Certified 1.99 Carat Burma No Heat Natural Oval Cut Ruby
Located in Kowloon, Hong Kong
This beautiful 1.99 carat Burma no-heat vivid red ruby is a rare and valuable gemstone, distinguished by its exceptional color and provenance. Sourced directly from the renowned mine...
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
No Heat 2 Indian Pear-Shaped Buff Rubies Cts 20.22
Located in Hong Kong, HK
Sourced from the heart of India, these mesmerizing pear-shaped buff rubies boast a total weight of 20.22 carats, measuring 15.24 x 11.09 x 5.92 mm and 15.67 x 11.06 x 6.17 mm. Thes...
Ruby
$5,600Sale Price|20% Off
Guild Certified 2.91ct Unheated Burmese Ruby, Cushion Cut, Vivid Red
Located in Peshawar, PK
Natural Loose Ruby Weight: 2.91 Carat Dimension: 9.27 x 7.45 x 4.31 Mm Colour: Vivid Purplish Red Treatment: Natural Origin: Himalayan Mountain (Burma) Certificate: Guild Cert...
Ruby, Other
$1,520Sale Price|20% Off
AIGS certificated 2.12ct Unheated ruby pink eye cleanest clarity Mozambique
Located in bangkok, TH
2.12ct Unheated ruby very clean clarity Mozambique Rare size and clarity ruby with AIGS certification RA-22 Name: Ruby Unheated Weight: 2.12ct Origin: Mozambique Color: pink Clar...
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
1.13 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
$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
$2,700Sale Price|55% Off
AIGS Certified 2.05ct Pinkish-Red Oval Ruby, 9.55x6.78x3.39 mm
Located in เกาะสมุย, TH
We ship from Thailand- International buyers are responsible for any applicable import duties, taxes, or customs fees levied by their destination country. These charges are not inclu...
Ruby
Contemporary 37.30 Carats Round Ruby Cabochons, No Heat, Mozambique Origin
Located in Hong Kong, HK
These 101 round ruby cabochons, weighing a total of 37.30 carats and expertly sized at 4-5 mm each. No heat Burma Ruby Cabochones Sourced from Mozambique, these rubies showcase a r...
Ruby
Green Granat Heart Necklace with Star Ruby Cabochon and Citrine Original Design
By Nicofilimon the Jewelry Designer
Located in Athens, GR
Green Heart - Nicofilimon 2021 in this One-Of-a-kind creation by Nicofilimon you have the privilege to choose one of the four variations of the design and it will by handcrafted espe...
Citrine, Ruby, Star Ruby
$2,737Sale Price|25% Off
GIA Certified Natural Burma Ruby 3.59 Carats No Heat Carved Double Cabochon Gem
By OGI Ltd
Located in New York, NY
An exceptional GIA Certified Natural Ruby originating from the legendary mines of Burma (Myanmar), this rare 3.59 carat loose gemstone showcases the rich character and collectible ap...
Ruby
AIGS Certified 5.06 Carat Mozambique No Heat Vivid Purplish Red Oval Cut Ruby
Located in Kowloon, Hong Kong
Discover the unparalleled beauty of this 5.06-carat vivid purplish red ruby, a rare gemstone originating from the legendary mines of Mozambique. Certified by AIGS Lab, this unheated,...
Ruby
Rare Natural Burma Myanmar Pinkish Red Ruby 1.94CT GRS Certified Emerald Cut
Located in New York, NY
GEMSTONE INFORMATION Retail Price - $15,000 Item Stock Number - RU87476356599 Certificate Number - GRS2012-101920 Shape - Emerald Carat Weight - 1.94ct Measurements - 8.33 x 6.70 x ...
Ruby
2.04Ct GRS Certificate Natural No heated Ruby Burma Pigeon Blood Color
Located in bangkok, TH
GG45 GRS Certificate Natural Unheated Burma Ruby Pigeon Blood Color Fine Quality GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby Unheated Weight: 2.04ct Color...
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
GIA Certified 0.52 Carat Burma No Heat Natural Vivid Red Ruby
Located in Kowloon, Hong Kong
This exquisite 0.52 carat Burma no-heat vivid red ruby is a rare and valuable gemstone, distinguished by its exceptional color and provenance. Sourced directly from the renowned mine...
Ruby
2.25 Carat GRS Certified Octagon Cut Vivid Purple-Red Ruby
Located in Hong Kong, HK
A very rare gemstone, it is a GRS certified natural octagon cut vivid purple-red ruby weighing 2.25 carat. The ruby has excellent cutting proportions, and possesses extremely fine co...
Ruby
2 Burmese Pigeon’s Blood Rubies Cts 2.22 With GRS Certificate
Located in Hong Kong, HK
Rarity meets quality, as these gems are a symbol of passion and desire. These GRS-certified Burmese Pigeon’s Blood Rubies are a mesmerizing duo totaling 2.22 carats. One is a 1.00...
Ruby
Gubelin Certified 1.13 Carat Burma No Heat Natural Vivid Red Ruby
Located in Kowloon, Hong Kong
This exquisite 1.13 carat Burma no-heat vivid red ruby is a rare and valuable gemstone, distinguished by its exceptional color and provenance. Sourced directly from the renowned mine...
Ruby
Gubelin Certified 0.893 Carat Burma No Heat Natural Vivid Red Ruby
Located in Kowloon, Hong Kong
This exquisite 0.893 carat Burma no-heat vivid red ruby is a rare and valuable gemstone, distinguished by its exceptional color and provenance. Sourced directly from the renowned min...
Ruby
CERTIFIED RUBY No Heat Oval Shape Intense Vivid Red 1.358 Carats Cert-B34763
Located in Miami, FL
Certified oval shaped No-Heat red ruby. This is a very rare and exceptional natural red ruby of 1.358 carats, with remarkable quality, fashioned in an elegant oval shape with beauti...
Ruby
GIA CERTIFIED Burmese Ruby No-Heat Intense Vivid Red 3.40 Carats GIA-1216189087
Located in Miami, FL
Certified oval shaped No-Heat Burmese vivid red ruby. This is a very rare and exceptional natural non-heated vivid red ruby of 3.40 carats, with remarkable quality, fashioned in an ...
Ruby
23.48 Carat Natural Oval Cabochon Star Ruby GIA Certified No Heat With Ring Mold
Located in Carmel By The Sea, CA
This item is offered on consignment on behalf of a client; all serious and reasonable offers are presented for consideration, and we work diligently to achieve a mutually agreeable o...
Ruby, Star 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
Rare No Heat Natural Mozambique Oval Vivid Red Ruby 3.00CT GRS Pigeon Blood
Located in New York, NY
Retail Price - $50,000 Item Stock Number - RR874633232666 Certificate Number - GRS2023-035915 Shape - Oval Carat Weight - 3.00ct Measurements - 9.47 x 7.27 x 4.94 Color - Vivid Red, ...
Ruby
Untreated Ruby Andilamena Madagascar 1.89 ct GRA certificate 9x5x4 mm Cushion
Located in Viena, Viena
Untreated ruby from Andilamena / Madagascar 1.89 ct with GRA certificate 9x5x4 mm" GRA certified untreated ruby (Andilamena / Madagascar) in fine ruby color red/violet with sma...
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
GIA Certified 1.37ct Unheated Burmese Ruby, Cushion Cut, Art Deco
Located in Singapore, SG
Kindly note that the stated price for this item is fixed and non-negotiable. We appreciate your understanding and respect for our pricing decision. Myanmar (Burma) rubies are univer...
Ruby
Rare No Heat Natural Thailand Purplish Red Ruby 1.22ct GIA Pigeon Blood Oval
Located in New York, NY
GEMSTONE INFORMATION Retail Price - $6,900 Item Stock Number - RU316537248577 Certificate Number - GIA 2231474014 Shape - Oval Carat Weight - 1.22ct Measurements - 7.15 x 5.46 x 3.6...
Ruby
Rare No Heat Natural Mozambique Emerald Cut Red Ruby 3.27CT GRS Certified
Located in New York, NY
Retail Price - $20,000 Item Stock Number - RR874633232665 Certificate Number - GRS2023-048257 Shape - Emerald Carat Weight - 3.27ct Measurements - 8.95 x 7.05 5.24 Color - Red Origin...
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
Natural Unheated Red Mozambique Ruby 1.31 carats with GIA Report / JupiterGem
Located in Los Angeles, CA
Introducing a natural Unheated Mozambique Ruby weighing 1.31 carats, authenticated by a GIA Report. The round-shaped gem, measuring 6.65 x 6.79 x 3.33 mm, features a Brilliant/Step c...
Ruby
Natural Unheated Red Mozambique Ruby 1.16 carats with GIA Report / JupiterGem
Located in Los Angeles, CA
Discover a natural Unheated Mozambique Ruby weighing 1.16 carats, accompanied by a GIA Report for authentication. The oval-shaped gem, measuring 7.35 x 5.13 x 3.24 mm, features a Bri...
Ruby
GIA 0.67ct Unheated Burma Pigeon Blood Ruby (5.62 x 4.88 x 2.34mm)
Located in Singapore, SG
Myanmar (Burma) rubies are universally recognized as the world's finest and most desirable, commanding premium prices in the international gem market due to their color saturation an...
Ruby
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.