2.37 Carat Natural Unheated Ruby, Round Cut
Located in Khet Bang Rak, 10
This gemstone displays a rich, vivid red hue—highly sought after for its depth, intensity, and timeless appeal. What sets this ruby apart is that it is completely unheated, a rare a...
Ruby
$6,113Sale Price|40% 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 Mozambique, one of the leading modern sources of fine quality sapphires. Certified by Gem ...
Ruby
$4,910Sale Price|25% Off
GIA 1.04 Carat Unheated Ruby Diamond Ring
Located in San Francisco, CA
A classic design, the 18k white gold ring features a lively, unheated oval-shaped ruby, weighing 1.04 carats, set within a halo and shoulders of round brilliant-cut diamonds totaling...
Diamond, Ruby, 18k Gold
Spectra Fine Jewelry Certified 6.16 Carat Unheated Ruby Diamond Ring
By Spectra Fine Jewelry
Located in New York, NY
Ring size 5.75, can be resized. Unheated center ruby weight approx. 6.16 carats; certified by GRS.
Diamond, Ruby, Platinum
$96,000Sale Price|20% Off
GIA Certified 4.26 Ct. UNHEATED Ruby Ring
Located in Chicago, IL
An exquisite 4.26 carat ruby ring Set with cadillac diamonds f color vs clarity the main stone has been certified as untreated
Diamond, White Diamond, Ruby, Platinum
$1,360Sale Price|20% Off
3.52Gram 1.98 Ct unheated Ruby Earring 18K Gold with Moss Agate Natural Dianond
Located in bangkok, TH
E035 3.52Gram 1.98 Ct unheated Ruby Earring 18K Gold with Moss Agate and Natural Diamond 1-Main stone : 1.98ct/4p-Ruby Unheated eyeclean 9.59ct/2p-Moss Agate 2-Surround stone: ...
Agate, Ruby, 18k Gold
Mid-Century Natural Unheated Ruby and Diamond Ring
Located in Denver, CO
This mid-century ring features a natural unheated oval ruby measuring approximately 5.5 x 9mm, surrounded by a halo swirl adorned with eighteen gleaming round diamonds totaling appr...
Diamond, Ruby, Platinum
Price Upon Request
Emilio Jewelry 10.00 Carat Certified Unheated Ruby Earrings
By Emilio!
Located in New York, NY
From the Emilio Jewelry Museum Vault, We are Showcasing a stunning a 10.00 carat pair of gorgeous vivid red untreated natural ruby earrings. These rubies are super rare as single sto...
Ruby
Art Deco Unheated Ruby and Diamond Cluster Ring
Located in London, GB
Here we have a striking Art Deco cluster ring focally featuring a fabulous natural rich red ruby at the centre of the face. This principal stone sits in a neat yellow gold bezel sett...
Diamond, Ruby, Platinum
AGL Certified Natural Unheated Ruby Diamond Platinum Ring
Located in Austin, TX
A vibrant platinum, ruby and diamond ring featuring an oval cut red 2.22 carat unheated Thai ruby (AGL certified), surrounded by old European- and single-cut diamonds weighing a tota...
Diamond, Ruby, Platinum
$344,000Sale Price|20% Off
12.32 Carat GRS certified UNHEATED rubies of Mozambique origin
Located in Chicago, IL
This remarkable pair of earrings brings together two museum-quality unheated Mozambique rubies with an outstanding ensemble of high-color, high-clarity diamonds—an elegant statement ...
Diamond, White Diamond, Ruby, Platinum
$1,110Sale Price|20% Off
Vintaged Style 0.82Ct Burma Unheated Ruby ring With Diamond
Located in Singapore, SG
Features : Main Gemstone (1pc) - Ruby Total Carat Weight (1pc) - 0.82Ct Natural Diamonds (18pcs) - 0.16Ct Measurement of ruby - 6.8x6.2mm ( Approx) Cut - Mixed Oval Cut Clarity...
Ruby, Diamond, 18k Gold
$33,600Sale Price|20% Off
GIA Certified 6.28 Carat Unheated Ruby Diamond Cocktail Ring
By Antinori Fine Jewels
Located in Chicago, IL
GIA Certified 6.28 Carat Ruby and Diamond Three-Stone Ring A magnificent ruby graces the center of this elegant three-stone ring, weighing 6.28 carats and certified by GIA. The ruby...
Diamond, Ruby, 18k Gold, Yellow Gold, Platinum
$11,487Sale Price|55% Off
Ring Burmese Unheated Ruby natural Gold Promise Engagement ring
Located in Berlin, DE
An engagement 18K white gold ring with natural Ruby and Diamonds with Jewelry ruby origin - Burma ruby measurements - 0.12 х 0.2 х 0.28 in / 3 х 5 х 7 mm ruby weight - 1.05 carats 1...
Diamond, Ruby, Gold, 18k Gold, White Gold
2.10 Carat Unheated Ruby Diamond Gold Ring, AIGS Certified
Located in Beverly Hills, CA
A superb gem quality 2.10 carat ruby takes center stage! The oval-shaped gem is unheated with no treatments and has a vivid red color with excellent brilliance.
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
Burma Unheated Ruby and Diamond Ring in 18K Yellow Gold
Located in Singapore, SG
Features: Main Gemstone - Ruby Total Carat Weight (5pcs) - 1.08Ct (Approx) Natural Diamonds (45pcs) -0.33Ct Measurement of ruby - 4.08x3.07mm (Approx) Cut - Oval Clarity - VS (...
Ruby, Diamond, 18k Gold
$13,950Sale Price|29% Off
GIA Graded Unheated Ruby and Diamond Chandelier Earrings, Pierre/Famille
Located in Aspen, CO
Unheated Natural Rubies set in platinum chandelier earrings, these vivid red rubies possessing GIA certificates which state that the fine matched rubies are unheated and untreated.
Diamond, White Diamond, Ruby, Platinum
$216,000Sale Price|20% Off
Exceptional 5.09 Carat GRS Certified VIVID RED Unheated Ruby Ring
Located in Chicago, IL
Exquisite 5.09 Carat GRS Certified Natural Ruby Ring At the heart of this masterpiece lies a 5.09 carat natural ruby, certified by GRS with no indication of thermal treatment and or...
Diamond, Ruby, Platinum
Victorian Certified Natural Unheated Ruby Diamond Vous et Moi Ring
Located in Napoli, NA
This Beautiful Authentic Victorian 18k gold 'Vous et Moi' ring is set in the center with one Certified vivid Natural unheated burmese ruby, 0.65 ct., and one Sparkling Old mine cut d...
Diamond, Ruby, 18k Gold, White Gold
Burmese Unheated Ruby and Sapphire Beads White Diamond Gold Necklace
Located in Hong Kong, HK
A beautiful necklace, it features luscious unheated Burmese ruby and blue sapphire beads weighing 567.37 carat and 555.51 carat respectively, with 57 white round brilliant diamond ro...
Diamond, White Diamond, Ruby, Blue Sapphire, Sapphire, Gold, 18k Gold, W...
$2,144Sale Price|20% Off
Burma Unheated Ruby Ring in 18K Yellow Gold (Ruby Unisex Ring)
Located in Singapore, SG
Features: Main Gemstone (9pcs) - Ruby Total Carat Weight (9pcs) - 3Ct (Approx) Measurement of ruby -4.8x4.5x2.3 mm Cut - mixed (off round) Clarity - SI Transparency - Transpar...
Ruby, 18k Gold, Yellow Gold
GIA Certified 4.16 Mozambique Unheated Ruby and Fancy Yellow Diamond Ring
Located in Yorba Linda, CA
Mozambique Unheated Certified Ruby Oval cut 2.08 carats Certificate # ICA 156828 GIA certified Fancy Yellow Diamond Oval cut 2.08 carats Certificate # FBY GIA 1122898735 Yellow Dia...
Ruby, 18k Gold
GIA 1.05 cts Natural Unheated Ruby & 0.32 cts Diamonds Platinum Ring
Located in Los Angeles, CA
The ruby is unheated, a highly desirable quality that preserves the gemstone’s natural color and internal structure, making it especially appealing to collectors.
Diamond, Ruby, Platinum
3.91 Carats Natural, Unheated Rubies and Diamond Bracelet Made in Platinum
Located in Tokyo, JP
A beautiful bracelet set in platinum featuring a total of 3.91 Carats of Rubies and 2.23 Carat Diamonds. Rubies are referred to as "Ratnaraj" in Sanskrit meaning the King of Gems. Ea...
Diamond, Ruby, Platinum
11.10 Carat Natural Unheated Rubies & Diamonds Tennis Necklace Made in Platinum
Located in Tokyo, JP
A beautiful necklace set in platinum featuring a total of 11.10 Carats of untreated Rubies and 5.43 Carat Diamonds. Rubies are referred to as "Ratnaraj" in Sanskrit meaning the King ...
Diamond, Ruby, Platinum
2.55 Carats Natural Unheated Rubies & Diamonds Tennis Bracelet Made in Platinum
Located in Tokyo, JP
A beautiful bracelet set in platinum featuring a total of 2.55 Carats of untreated Rubies and 1.96 Carat Diamonds. Rubies are referred to as "Ratnaraj" in Sanskrit meaning the King o...
Diamond, Ruby, Platinum
Unheated Ruby with Diamond Bangle set in 18K White Gold Settings
Located in Bangkok, TH
Ruby 9.12 carats with Diamond 4.29 carats Bangle set in 18K White Gold Settings (Certified by GIT: The Gem and Jewelry Institute of Thailand) Width: 2.0 cm Diameter: 6.0 cm Total ...
Diamond, Ruby, 18k Gold, White Gold
$1,270Sale Price|20% Off
0.845Ct Burma unheated Ruby and Natural diamond 2 ways stud earring
Located in Singapore, SG
Rubies that are completely untreated are worth far more than those that have been treated. Geographical origin also has a major impact on price. The rubies are from Burma and comple...
Diamond, Ruby, 18k Gold
$1,030Sale Price|20% Off
Burma Unheated Ruby and Natural Diamonds Ring in 18K Yellow Gold
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. Features: Main Gemstone (1pcs) -...
Ruby, Diamond, 18k Gold, Yellow Gold
$1,030Sale Price|20% Off
Burma Unheated Ruby and Natural Diamonds Ring in 18K Yellow Gold
Located in Singapore, SG
Features: Main Gemstone (1pcs) - Ruby Total Carat Weight (1pc) - 0.85Ct (approx) Measurement of ruby - 6.42x5.2mm Cut - mixed (Oval) Clarity - SI (Has Natural Inclusion or minor...
Ruby, Diamond, 18k Gold, Yellow Gold
$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
Platinum 1.02ct Unheated Ruby & 1.20cttw Old Cushion Cut Diamond Engagement Ring
Located in Hicksville, NY
Size: 5.25 Metal Type: Platinum Weight: 3.3 g Gem Stone Details: Type: Ruby - Natural, Unheated Shape: Antique Cushion Color: Red Size: 1.14ct Diamond Details: Shape: Antique Cu...
Platinum
GIA Certified Unheated Ruby and Diamond Three Stone Ring in Yellow Gold
By Jae's Jewelers
Located in Coral Gables, FL
18 karat yellow gold 3 stone ring featuring a 3.40 carat oval cut unheated eye-clean Thai ruby with GIA report 2235346604 accented by 2 oval cut diamonds of G color and VS2 clarity (...
Diamond, Ruby, 18k Gold, Yellow Gold
$23,200Sale Price|20% Off
1960s European 18k gold, natural unheated ruby, diamond and onyx cocktail ring
Located in London, GB
This stunning 1960s cocktail ring is designed around a remarkable unheated natural ruby. It is adorned with onyx and diamonds and set in 18 k gold.
Diamond, Onyx, Ruby, 18k Gold
8.62 Carat Natural Unheated Rubies and Diamonds Tennis Necklace Made in Platinum
Located in Tokyo, JP
A beautiful necklace set in platinum featuring a total of 8.62 Carats of untreated Rubies and 4.34 Carat Diamonds. Rubies are referred to as "Ratnaraj" in Sanskrit meaning the King o...
Diamond, Ruby, Platinum
1.05 Carat Natural Unheated Rubies and Diamond Cocktail Ring made in Platinum
Located in Tokyo, JP
A beautiful Ring set in Platinum featuring a AIGS Certified 1.05 Carat Natural Untreated Rubies and 0.81 Carat Diamonds. Rubies are referred to as "Ratnaraj" in Sanskrit meaning the ...
Diamond, Ruby, Platinum
$4,480Sale Price|20% Off
IGI Certified 1.26 Carat Unheated Ruby & Diamond Ring in 18K White Gold
Located in KOWLOON, HK
Whether it's a special occasion or just to indulge yourself, this IGI Certified 1.26 Carat intense pink red UNHEATED Natural ruby ring in cushion shape & 0.31ct natural round brillia...
Diamond, Ruby, 18k Gold, White Gold
$68,000Sale Price|20% Off
GRS Certified 4.21 Carat Burmese Oval Unheated Ruby 18K Gold Cocktail Ring
Located in Chicago, IL
A timeless creation by Cecile Blake, this exquisite ring showcases a vibrant 4.21-carat natural ruby of Burmese origin, certified by GRS for its pinkish-red hue and untreated status....
Ruby, 18k Gold, White Gold, Yellow Gold
$1,384Sale Price|20% Off
IGI Burma Unheated Ruby and Burma Unheated Blue sapphire ring in 18k solid gold
Located in Singapore, SG
This ring features two precious stones from the Big Four, an intense blue sapphire and a vivid pinkish-red ruby, set in 18K solid gold. Both gemstones are unheated and sourced from t...
Ruby, Blue Sapphire, 18k Gold, Gold
$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
$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
ICA Certified 15.28 Carat Burmese Unheated Ruby and Diamond Earring in 18K Gold
By Rewa Jewellery
Located in Bangkok, TH
A brand new pair of ruby and diamond earrings. The forty two rubies weigh 15.28 carat certified by International Colored Gemstone Association (ICA) unheated and 'Pinkish red to Vivi...
Diamond, Ruby, 18k Gold, White Gold
3.44 ct Natural Burma Unheated Ruby 1.68 carat Emerald Diamond Ring Cum Pendant
Located in Yorba Linda, CA
Gross Weight 13.49 gms 18k Gold- 12.43 Burmese No Heat Ruby 3.44 carats (not certified) Natural Emerald 1.68 carats Diamonds .16 carats Appraisal Certificate Available by GIA certif...
Diamond, Emerald, Ruby
8.40 Carat Natural Unheated Rubies and Diamonds Tennis Necklace Made in 18K Gold
Located in Tokyo, JP
A beautiful necklace set in platinum featuring a total of 8.40 Carats of untreated Rubies and 14.85 Carat Diamonds. Rubies are referred to as "Ratnaraj" in Sanskrit meaning the King ...
Diamond, Ruby, 18k Gold, Yellow Gold
AIGS certificated unheated Ruby Brilliant Earrings Pigeon Blood 2 ct 0.9 ct AAA+
Located in Viena, Viena
two untreated Mozambique AAA+ rubies in pure quality, considered a rarity and then still a pair, wonderful earrings with AIGS certificate, color Pigeon Blood, eye-clean, in halo st...
Diamond, Ruby, 18k Gold, White Gold
GIA Certified Unheated Ruby with Diamond Ring set in 18K White Gold Settings
Located in Bangkok, TH
Ruby 1.93 carats with Diamond 0.36 carat Ring set in 18K White Gold Settings (GIA Certified) Width: 1.3 cm Length: 0.9 cm Ring Size: 53 Total Weight: 5.30 grams Ruby Width: 0.6 ...
Diamond, Ruby, 18k Gold, White Gold
GRS Certified Unheated Ruby with Diamond Jacket Ring in 18 Karat Rose/White Gold
Located in Bangkok, TH
Ruby 4.74 carats with Diamond 0.92 carats Ring set I 18 Karat Rose Gold Settings (GRS Certified) Diamond 2.9 carats Jacket Ring set in 18 Karat White Gold Settings (Jacket) Main R...
Diamond, Ruby, 18k Gold, Rose Gold, White Gold
$54,800Sale Price|20% Off
GRS & GIA Certified 2 Ct Vivid Red Unheated Ruby Heart Bezel Set Necklace in 18K
By Antinori Fine Jewels
Located in Chicago, IL
An elegant and refined necklace showcasing a 2.01 carat natural ruby, exquisitely cut in a romantic heart shape and set in a smooth bezel mounting crafted in 18K yellow gold. The cle...
Diamond, White Diamond, Ruby, 18k Gold, Yellow Gold
Natural Unheated Red Ruby Pair Gemstones 2.04 carats with GIA Report
Located in Los Angeles, CA
Presenting a mesmerizing Natural Unheated Ruby Pair totaling 2.04 carats, complete with a GIA Report.
Ruby
GIA GIT Certificate 17.18 Ct Natural No heat Ruby Unheated Mozambique Gemstone
Located in bangkok, TH
 GG72 GIA GIT Certificate 17.18 Ct Natural No heat Ruby unheated Mozambique gemstone GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Unheated Ruby Weight: 17.18 Ct...
Ruby
1.58ct Unheated Mozambique Ruby - SUPER RED COLOR ! GRS Certified.
Located in Ramat Gan, IL
A striking rarity for the true connoisseur. This 1.58-carat unheated ruby hails from the famed mines of Mozambique, renowned for producing some of the world's finest rubies.
Ruby, 18k Gold, White Gold
ARAYIAN 2.59 Unheated Mozambique Ruby Earrings with Certificate
Located in Khet Bang Rak, 10
A perfectly matching unheated Mozambique ruby earrings. Rubies are known as the king of gems, and these earrings feature unheated rubies, which are becoming increasingly rare.
Diamond, Ruby, 18k Gold, White Gold
1.99 carats Unheated Mozambique Ruby
Located in Khet Bang Rak, 10
Unheated 1.99 carats Mozambique ruby, a perfect size for a ring or a pendant to be made.
Ruby
2.07 carats Unheated Mozambique Ruby
Located in Khet Bang Rak, 10
Unheated 2.07 carats Mozambique ruby, a perfect size for a ring or a pendant to be made.
Ruby
$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
Mozambique Ruby 1.63 carats Unheated
Located in Khet Bang Rak, 10
Unheated 1.63 carats Mozambique ruby, a perfect size for an engagement ring or a special pendant to be made.
Ruby
Unheated 1.76 carats Mozambique Ruby
Located in Khet Bang Rak, 10
Unheated 1.76 carats Mozambique ruby, a perfect size for an engagement ring or a special pendant to be made.
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.