1.51ct Cushion Red Ruby Unheated
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 1 Weight: 1.51 cts Measurements: 7.90x5.20x3.40 mm
2010s Tanzanian Loose Gemstones
Ruby
1.51ct Cushion Red Ruby Unheated
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 1 Weight: 1.51 cts Measurements: 7.90x5.20x3.40 mm
Ruby
0.97ct Oval Red Ruby Unheated
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 1 Weight: 0.97 cts Measurements: 6.30x5.30x5.30 mm
Ruby
1.01ct Oval Red Ruby Unheated
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 1 Weight: 1.01 cts Measurements: 6.60x5.00x3.20 mm
Ruby
$1,280
0.78 ct Oval Ruby Burma
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 1 Weight: 0.78 cts Measurements: 5.73x4.63x3.30 mm
Ruby
$7,400 / set
Ruby Oval Pair Unheated – 2.96 ct
Located in Khet Bang Rak, 10
This matching pair of oval-cut unheated rubies, with a combined weight of 2.96 carats, displays a
Ruby
2.37 Carat Natural Unheated Ruby, Round Cut
Located in Khet Bang Rak, 10
valuable characteristic in the world of fine gemstones. Untreated rubies retain their natural formation
Ruby
4.21ct Oval Red Ruby from Vietnam
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 1 Weight: 4.21 cts Measurements: 10.64 x 8.41 x
Ruby
11 Ruby Heart Cabochons Cts 9.17
Located in Hong Kong, HK
A symbol of love and passion, these 11 ruby heart-shaped cabochons radiate a deep, fiery red hue
Ruby
1.53ct Round Red Ruby GIA Certified Madagascar
Located in Toronto, Ontario
This is a stunning GIA Certified Ruby The GIA report reads as follows: GIA Report Number
Ruby
GIA Certified No Heat Cushion Ruby
Located in Great Neck, NY
GIA Certified Cushion Ruby 1.36 cts (7.25x6.80x3.00) mm NO HEAT
Ruby
$7,189Sale Price|30% Off
Exceptional 1.10 carats Unheated Ruby - Swiss Certified
Located in London, GB
This exceptional, untreated and stunningly beautiful 1.10 carats red ruby originates from
Ruby
1.06ct Round Red Ruby GIA Certified Madagascar
Located in Toronto, Ontario
This is a stunning GIA Certified Ruby The GIA report reads as follows: GIA Report Number
Ruby
$35,828Sale Price|44% Off
GFCO Certified 3.63 Carats Untreated Mozambique Ruby
Located in New Delhi, Delhi
A very stunning GFCO certified natural Untreated Ruby from Mozambique, in oval cut, of 3,63 carats
Ruby
2.7ct Oval Red Ruby from Vietnam
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 1 Weight: 2.7 cts Measurements: 10.69 x 6.30 x 4.19
Ruby
$3,120Sale Price|20% Off
9.2mmx7mm Oval ruby pair natural and untreated
Located in Jupiter, FL
Rare matching pair of rubies, untreated and certified. NATURAL GEMSTONE(S): NATURAL RUBY Clarity
Ruby
Natural Unheated Red Mozambique Gemstone 1.24 carats with GIA Report
Located in Los Angeles, CA
nature, this Unheated Mozambique Ruby stands as an appealing and valuable gemstone, suitable for diverse
Ruby
Guild Certified 2.91 Carat Unheated Burmese Ruby
Located in Peshawar, PK
Natural Loose Ruby Weight: 2.91 Carat Dimension: 9.27 x 7.45 x 4.31 Mm Colour: Vivid Purplish
Ruby, Other
GRA Certified Natural Ruby 6.50 Ct Emerald Cut No Heat
Located in Temse, BE
belongs to the corundum family, one of the most valued gemstone groups in the world. Rubies are admired
Ruby
1.23ct Emerald Cut Red Ruby Unheated
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 1 Weight: 1.23 cts Measurements: 8.50x4.50x2.50 mm
Ruby
2.03 carat Unheated Mozambique Ruby Ethically Sourced
Located in Khet Bang Rak, 10
Unheated 2.03 carats Mozambique ruby elongated cushion, a perfect size for a ring or a pendant to
Diamond, 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
Ruby
1.34ct Cushion Purplish Red Ruby GIA Certified Unheated
Located in Toronto, Ontario
This is a stunning GIA Certified Ruby The GIA report reads as follows: GIA Report Number
Ruby
0.84ct Oval Red Ruby from Mozambique
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 1 Weight: 0.84 cts Measurements: 6.96 x 5.02 x 2.66
Ruby
0.87ct Oval Red Ruby from Mozambique
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 1 Weight: 0.87 cts Measurements: 6.84 x 4.71 x 2.66
Ruby
GIA Certified Natural Star Ruby 14.88 Carat Form Vietnam
Located in บางรัก, TH
🌟 Unlock Celestial Beauty — Vietnam Star Ruby with Asterism 🌟 Witness the wonder of nature and
Ruby, Star Ruby
7 Flower Ruby Round Carving Cts 15.23
Located in Hong Kong, HK
Featuring 7 exquisite ruby flower carvings (15.23 cts, no heat). Sourced from Myanmar, these
Ruby
Royal Antwerp Gem Natural Ruby Cabochon Parcel 2.93 Ct Certified
Located in Temse, BE
gemstone collections. Cabochon rubies are appreciated for their soft glow, vivid body color, and classic
Ruby
Royal Antwerp Gem Natural Ruby Cabochon Parcel 3.84 Ct Certified
Located in Temse, BE
manufacturing, designer rings, earrings, bracelets, or gemstone collection purposes. Cabochon rubies are
Ruby
GIA Certified No Heat Cushion Ruby
Located in Great Neck, NY
GIA Certified No Heat Ruby Cushion Shape 1.23 cts (7.55x6.06x2.61) mm
Ruby
$6,162Sale Price|40% Off
Beautiful, Untreated 1.17ct Pinkish-Red Ruby - Swiss Certified
Located in London, GB
This beautiful 1.17 carats Pinkish-Red ruby originates from Mozambique, one of the leading modern
Ruby
1.17ct Pair Oval Red Ruby from Mozambique
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 2 Weight: 1.17 cts (0.57ct/0.60ct) Measurements
Ruby
3.36ct Oval Red Ruby GIA Certified Mozambique
Located in Toronto, Ontario
This is a stunning GIA Certified Ruby The GIA report reads as follows: GIA Report Number
Ruby
2 Burmese Oval-Shaped Rubies Cts 1.65
Located in Hong Kong, HK
Two captivating oval-shaped rubies, weighing a total of 1.65 carats, are ready to be transformed
Ruby
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
Ruby
$1,600Sale Price|20% Off
Rare ruby oval cabochon pair matching pair 8.8mm
Located in Jupiter, FL
Rare matching pair of rubies, untreated and certified. NATURAL GEMSTONE(S): NATURAL RUBY Clarity
Ruby
2 Hexagon-Shaped Ruby Carvings Cts 17.47
Located in Hong Kong, HK
more than just gemstones—they're works of art. With a total weight of 17.47 carats, these rubies
Ruby
Royal Antwerp Gem Natural Ruby Sugarloaf Cabochon 10.00 Ct Certified
Located in Temse, BE
rings, pendants, or artistic gemstone settings. Sugarloaf cabochon rubies are appreciated for their rich
Ruby
$1,360 / set
1.33ct Pear Red Ruby from Thailand Pair
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 2 Weight: 1.33 cts Measurements: 5.73 x 5.39 x 2.76
Ruby
$1,360 / set
1.41ct Pear Red Ruby from Thailand Pair
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 2 Weight: 1.41 cts Measurements: 6.22 x 4.85 x 2.84
Ruby
$1,440 / set
1.47ct Pear Red Ruby from Thailand Pair
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 2 Weight: 1.47 cts Measurements: 6.38 x 4.99 x 2.57
Ruby
$1,360 / set
1.33ct Pear Red Ruby from Thailand Pair
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 2 Weight: 1.33 cts Measurements: 6.23 x 5.20 x 2.57
Ruby
Royal Antwerp Gem Madagascar Ruby 1.39 Ct Oval Cut Certified
Located in Temse, BE
luxurious presentation suitable for jewelry or gemstone collections. Ruby belongs to the corundum family
Ruby
Sapphire, Ruby, and Emerald Cabochons Cts 39.54
Located in Hong Kong, HK
This exquisite collection of 80 sapphire, ruby, and emerald cabochons, totaling 39.54 carats
Emerald, Ruby, Sapphire
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
Ruby
1.05 cts, Certified unheaat faceted pigeon blood ruby
Located in บางรัก, TH
Certified unheaat faceted pigeon blood ruby sku672 Weight: 1.05 cts Size: 9.02х4.37х2.92 mm Color
Ruby
GIA Emerald Natural Diamond 1.60ct F/VS1 Loose GIA XX $2000 Credit, Inscription
By GIA
Located in San Diego, CA
Exquisite loose 1.60ct emerald-cut diamond certified by GIA with laser inscription number
Diamond, Alexandrite, Amethyst, Aquamarine, Blue Diamond, Yellow Diamond...
$47,931Sale Price|30% Off
Exceptional Untreated 2.03 carat Pigeon's Blood Ruby (Swiss Certified)
Located in London, GB
This exceptional, untreated and stunningly beautiful 2.03 carat pigeon's blood ruby originates from
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
Ruby
$15,406Sale Price|25% 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
Ruby
$13,146Sale Price|20% 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
Ruby
1.76ct Pair Oval Red Ruby from Mozambique
Located in Toronto, Ontario
Description: Gem Type: Ruby Number of Stones: 2 Weight: 1.76 cts (0.99ct and 0.77ct) Measurements
Ruby
GRA Certified Natural Ruby 0.88 Ct Pear Cut Antwerpen stock
Located in Temse, BE
, making it ideal for fine jewelry or gemstone collections. Rubies belong to the prestigious corundum
Ruby
$12,325Sale Price|25% 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
Ruby
Royal Antwerp Gem GRA Certified Natural Ruby 0.88 Ct Cushion Cut
Located in Temse, BE
eye. ⸻ ⸻ SPECIFICATIONS -Gemstone: Natural Corundum (Ruby) -Weight: 0.88 ct -Shape / Cut: Cushion
Ruby
$47,931Sale Price|30% Off
Exceptional Untreated 2.15 carat Pigeon's Bloody Ruby - Swiss Certified
Located in London, GB
This exceptional, untreated and stunningly beautiful 2.15 carat Pigeon's Blood ruby originates from
Ruby
$12,325Sale Price|40% 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
Ruby
1.02 Ct GRS Certificate Natural Burma Ruby No heated Red Color
Located in bangkok, TH
RMA128 GRS Certificate Natural Burma Ruby Unheated red color cushion shape gemstone GEM
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.