12ct Gold Ruby and Diamond Ballerina Cocktail Ring, 2.25ct Ruby
Located in Braintree, GB
According to the accompanying World Gemological Institute report, the ruby is natural corundum with an indication of thermal enhancement, origin opinion Thailand / Cambodia.
Yellow Gold
Vintage Platinum GIA 3.23ctw Cushion Ruby Baguette Diamond Ballerina Ring
Located in Montclair, NJ
Comes with original GIA certification for the center ruby. Stock Number: MK-170160133 --Certification Details:-- Laboratory: GIA Report Number: 3525169291 Stone Shape: Cushion Cutti...
Diamond, Ruby, Platinum
French 18K Gold 7 Carat Ruby and Diamond Cluster Ring
Located in MONTMORENCY, FR
Striking French vintage cluster ring crafted in 18-karat yellow gold and set with an impressive oval-cut ruby weighing approximately 7 carats. The ruby has undergone heat treatment, ...
Diamond, Ruby, 18k Gold
$1,040Sale Price|20% Off
2.31 Ct ICA Certificate Unheated Star Ruby Burma transparent Pinkish red No heat
Located in bangkok, TH
RMA115～ ICA Certificate Natural Star Ruby unheated Burma transparent Pinkish red Gemstone GEM DESCRIPTION: Species: Natural Corundum Variety: Natural Star Ruby unheated Weight: 2.31...
Ruby, Star Ruby
Platinum 2.41ctw GIA Vivid Red Ruby Diamond Ballerina Statement Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby. Stock Number: MK-150180644 --Certification Details:-- Laboratory: GIA Report Number: 2235873309 Stone Shape: Cushion Cutting Styl...
Diamond, Ruby, Platinum
Platinum 2.15ctw GIA Oval Bright Burma Ruby & Round Baguette Diamond Ring
Located in Montclair, NJ
Comes with original GIA certification for the center ruby. Stock Number: MK-750116094 --Certification Details:-- Laboratory: GIA Report Number: 6237925878 Stone Shape: Oval Cutting ...
Diamond, Ruby, Platinum
Platinum GIA 2.55ctw Pear Ruby & Diamond Double Halo Ballerina Cocktail Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby. Stock Number: MK-710145360 --Certification Details:-- Laboratory: GIA Report Number: 1232529569 Stone Type: Natural Corundum - Na...
Diamond, Ruby, Platinum
Vintage Platinum 2.31ctw GIA Oval Burma Ruby Half Moon Diamond Sides Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby. Stock Number: MK-170201036 --Ruby Certification Details:-- Laboratory: GIA Report Number: 6551455512 Shape: Oval Cutting Style: C...
Diamond, Ruby, Platinum
.67 Carat Ruby Diamond Halo Platinum Ballerina Engagement Ring
Located in Stamford, CT
Oval ruby and diamond halo engagement ring. GIA certified .67 carat natural corundum oval center ruby with a halo of baguette and around diamonds in a custom-made platinum setting. ...
Diamond, Ruby, Platinum
Platinum 3.22ctw GIA Cushion Red Ruby Shield Step Cut Diamond Sides Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby & the 2 diamonds. Stock Number: MK-760436138 --Ruby Certification Details:-- Laboratory: GIA Report Number: 2245103572 Shape: Cush...
White Diamond, Ruby, Platinum
GIA-Certified Natural Untreated Burmese Ruby 18k Gold Victorian Earrings Diamond
Located in Sherman Oaks, CA
Gorgeous 18k Yellow Gold Drop Earrings Feature Two Cushion-Cut Unaltered Rubies (TRW = 2.60 ct) Include GIA Certificate for Rubies, Which Reads: Details Item Description: Two red sto...
Diamond, Ruby, 18k Gold, Yellow Gold
Vintage Elegant Platinum 8.15ctw GIA Ruby & Diamond Handmade Dangle Earrings
Located in Montclair, NJ
The earrings come with the original GIA certification for the 2 rubies. Stock Number: MK- 360626516 --Certification Details:-- Laboratory: GIA Report Number: 2235334085 Shape: Cushi...
White Diamond, Ruby, Gold, White Gold, Platinum
Antique No-Heat Burmese Ruby Diamond 14K Gold Brooch, GIA Certified
Located in Beverly Hills, CA
GIA Ruby Origin Report 5232995633 (dated July 20, 2026) confirms one of the three red stones (tested at random) as Natural Ruby, Natural Corundum, of Burmese origin, with No Indicati...
Diamond, Ruby, 14k Gold, Yellow Gold
12.66ct Ruby & Diamond Ring – Dual Certified AGL & GIA, Fine Jewelry
By Unbranded
Located in Tysons, VA
Type: Cocktail Ring Era / Style: Mid-Century Metal: White Gold Metal Purity: 18K Setting Style: Prong Band Style: Plain Finish: High Polish Gemstone: Natural Ruby (Corundum) Origin: ...
Diamond, Ruby, 18k Gold, White Gold
AGL Burma Ruby and Diamond Earrings 18 Karat Yellow Gold
Located in Chicago, IL
Accompanied by an AGL report confirming the rubies as natural corundum with evidence of heat treatment, excellent color stability, and minor to moderate clarity enhancement, as well ...
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
Antique Victorian Gold GIA Burma No Heat Ruby & Sapphire Dangle Drop Earrings
Located in Montclair, NJ
Comes w/ Original GIA certification for 1 randomly picked ruby & 1 randomly picked sapphire. Stock Number: MK-16036619 --Ruby Certification Details:-- Laboratory: GIA Report Number...
Ruby, Sapphire, Gold, Yellow Gold
Vintage Platinum & Gold 1.6ctw GIA Ruby w/ Diamond Pendant Adjustable Necklace
Located in Montclair, NJ
Comes w/ the original GIA certification for the ruby. Stock Number: MK-170133617 --Certification Details:-- Laboratory: GIA Report Number: 6237494447 Shape: Oval Cutting Style: Crow...
Diamond, White Diamond, Ruby, Gold, 18k Gold, Yellow Gold, Platinum
Gold bouquet of flowers brooch with synthetic rubies and diamonds
Located in Chorzów, PL
The flower buds are set with synthetic rubies in an intense pink color, and the leaf with 6 rosette-cut diamonds and one rosette of synthetic corundum.
Diamond, Ruby, Gold, 14k Gold
Vintage Tiffany & Co. 18K Yellow Gold 0.06ct Cabochon Ruby Leaf Brooch
By Tiffany & Co.
Located in Houston, TX
Bezel Set in 18 Karat Yellow Gold with: One (1) natural, round-shaped, cabochon cut ruby: Species: Natural Corundum Variety: Natural Ruby Measurements: 2.50mm - 2.60mm in diameter ...
Ruby, Gold, 18k Gold, Yellow Gold
18K Yellow Gold Ruby Tabij and Yellow Diamond Heart Earrings
Located in Hong Kong, HK
Above them sit two fancy yellow heart-shaped diamonds (1.52 cts total), sourced from South Africa, set in warm 18K yellow gold weighing 2.70 grams. Scientifically, rubies are corun...
Yellow Diamond, Ruby, Yellow Gold
High Quality Platinum 3.20ctw GIA Ruby & Diamond Long Ballerina Dinner Ring
Located in Montclair, NJ
Comes with original GIA certification for the Ruby stone. Stock Number: JO-200207513 --Certification Details:-- Laboratory: GIA Report Number: 6233685254 Shape: Oval Cutting Style C...
Diamond, Ruby, Platinum
Platinum GIA 1.68ctw Cushion Ruby Round & Baguette Cut Diamond Cocktail Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby. Stock Number: MK-15076013 --Certification Details:-- Laboratory: GIA Report Number: 5232625772 Stone Shape: Cushion Cutting Style...
Diamond, Ruby, Platinum
Roberto Coin Martellato 18K Yellow Gold Hammered Dome Ruby Cocktail Ring
By Roberto Coin
Located in Houston, TX
Bezel Set in 18 Karat Yellow Gold with: One (1) natural, round-shaped, brilliant cut ruby: Species: Natural Corundum Variety: Natural Ruby Measurements: 1.30mm - 1.40mm in diameter...
Ruby, Gold, 18k Gold, Yellow Gold
Platinum 2.13ctw GIA Spready Oval Vivid Red Ruby & Pear Baguette Diamond Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby. Stock Number: MK-490129560 --Certification Details:-- Laboratory: GIA Report Number: 1236915999 Stone Shape: Oval Cutting Style: ...
Diamond, Ruby, Platinum
Antique Victorian Gold GIA Burma Ruby & Sapphire w/ Pearls Swag Festoon Necklace
Located in Montclair, NJ
Comes w/ Original GIA certification for 2 randomly picked rubies & 2 randomly picked sapphires. Stock Number: MK-760191765 --Ruby Certification Details:-- Laboratory: GIA Report Nu...
Pearl, Ruby, Sapphire, Gold, Yellow Gold
18K White Gold 4.12ctw GIA Pear Ruby & Diamond Halo Pendant Station Necklace
Located in Montclair, NJ
Comes w/ the original GIA certification for the ruby. Excellent condition. Stock Number: EK-430359734-23092302-PAR-EY --GIA Report Details:-- Report Number: 2225715601 Shape: Pear C...
Diamond, Ruby, 18k Gold, White Gold
Vintage Platinum GIA 2.49ct Burma Ruby & Diamond Swirl Cocktail Statement Ring
Located in Montclair, NJ
Comes w/ original GIA certification for the ruby. Stock Number: MK-690120596 --Certification Details:-- Laboratory: GIA Report Number: 6233497953 Shape: Oval Cutting Style: Crown: B...
Diamond, Ruby, Platinum
Platinum 4.08ctw GIA Pear Vivid Red Pigeon's Blood Burma Ruby Diamond Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby. Stock Number: MK-410620133 --Certification Details:-- Laboratory: GIA Report Number: 1478628317 Stone Shape: Pear Cutting Style: ...
Diamond, Ruby, Platinum
Platinum 1.71ctw GIA Emerald Cut Burma Vivid Red Ruby w/ Baguette Diamond Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby. Stock Number: MK-190280317 --Certification Details:-- Laboratory: GIA Report Number: 2235910874 Stone Shape: Octagonal Cutting St...
Diamond, Ruby, Platinum
Vintage Platinum GIA Vivid Pigeon Blood Red Burma Ruby & Diamond Solitaire Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby. Stock Number: MK-170118010 --Certification Details:-- Laboratory: GIA Report Number: 6233882500 Stone Shape: Octagonal Cutting St...
Diamond, Ruby, Platinum
Certified 1.16 Carat Ruby and Diamond Earrings in 18K White Gold
Located in KOWLOON, HK
Acquire a piece of geological history with this exceptional Natural Ruby Corundum earring, a treasure that transcends mere jewelry.
Diamond, Ruby, White Gold, 18k Gold
Vintage Yellow Gold GIA 1.6ctw Round Vivid Red Ruby & Diamond Nugget Pendant
Located in Montclair, NJ
Comes w/ the original GIA certification for the ruby. Stock Number: MK-310210369 --Certification Details:-- Laboratory: GIA Report Number: 6237839584 Shape: Round Cutting Style: Cro...
Diamond, Ruby, Gold, Yellow Gold
18K Gold GIA 20.65ctw Ruby Sapphire & Diamond Large Floral Statement Earrings
Located in Montclair, NJ
The earrings come with the original GIA certification for the rubies & the sapphires. Stock Number: MK-130177093-24031921 --Certification Details For Rubies:-- Laboratory: GIA Repor...
Diamond, Ruby, Sapphire, 18k Gold
French Gold & Platinum 26.72ctw GIA Burma No Heat Ruby & Diamond Pin Brooch
Located in Montclair, NJ
Comes with original GIA certification for 2 randomly picked rubies. Stock Number: MK-410680515 --Certification Details For Ruby:-- Laboratory: GIA Report Type: Ruby Origin Report Re...
Diamond, Ruby, Gold, Yellow Gold, Platinum
Vintage Platinum GIA 2.49ct Cushion Ruby Flared Baguette Diamond Ribbon Bow Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby. Stock Number: MK-410149469 --Certification Details:-- Laboratory: GIA Report Number: 1232732136 Stone Shape: Cushion Cutting Styl...
Diamond, Ruby, Platinum
Vintage 18K Yellow Gold 2.63ctw Invisible Ruby Baguette Diamond Crossover Band
Located in Houston, TX
Color: F - G Clarity: VS1 - VS2 Polish: Very Good Symmetry: Very Good Invisibly Set in 18 Karat Yellow Gold with: Twenty-four (24) natural, square step, step cut rubies: Species: ...
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
Platinum GIA 2.22ctw No Heat Oval Ruby w/ Baguette Diamond Tiered Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby. Stock Number: MK-130140899 --Certification Details:-- Laboratory: GIA Report Number: 6237803311 Stone Shape: Oval Cutting Style: ...
Diamond, Ruby, Platinum
Vintage Platinum GIA 0.58ct Oval Cut Ruby Solitaire Petite Skinny Band Ring
Located in Montclair, NJ
Comes with the original GIA certification for the ruby. Stock Number: MK-19039516 --Certification Details:-- Laboratory: GIA Report Number: 5234372270 Shape: Oval Cutting Style: Cro...
Ruby, Platinum
Bulgari, Vintage GIA Certified No Heat Ruby and Diamond Ring, 18K Yellow Gold
By Bulgari
Located in Chicago, IL
The ruby is accompanied by a 2026 GIA Ruby Origin Report, identifying it as natural corundum of Sri Lankan origin, with no indications of heating.
Diamond, Ruby, 18k Gold, Yellow Gold
Vintage Platinum GIA 2.72ctw Cabochon Star Ruby w/ Marquise & Round Diamond Ring
Located in Montclair, NJ
Comes w/ the original GIA certification for the Ruby. Stock Number: MK-130105013 --Certification Details:-- Laboratory: GIA Report Number: 2235686851 Shape: Oval Cutting Style: Dou...
Diamond, Ruby, Platinum
Vintage Tiffany & Co. 14K Yellow Gold Ruby Powder Case Compact Mirror Box
By Tiffany & Co.
Located in Houston, TX
Channel Set in 14 Karat Yellow Gold with: Four (4) natural, square step, step cut rubies: Species: Natural Corundum Variety: Natural Ruby Measurements: 3.00mm x 3.00mm x ~1.86mm in...
Ruby, Gold, 14k Gold, Yellow Gold
Vintage Platinum GIA 1.47ctw High Quality Burma Star Ruby w/ Diamond Ring
Located in Montclair, NJ
Comes with original GIA certification for the star ruby. Stock Number: MK-49053599 --Certification Details:-- Laboratory: GIA Report Number: 2231642060 Stone Shape: Oval Cutting Sty...
Diamond, Ruby, Platinum
Substantial Platinum 6.45ctw GIA Large Oval Burma Ruby w/ Diamond Halo Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby. Stock Number: MK-490960314 --Certification Details:-- Laboratory: GIA Report Number: 3515010778 Stone Shape: Oval Cutting Style: ...
Diamond, Ruby, Platinum
Pradera Jewels Ruby Earrings & 18k White Gold & White Diamonds
By Pradera Irama
Located in Neguri, Vizcaya
18Kt white gold earrings with a total weight of 3.23 grams, 8 diamonds with a total weight of 0.17 carats and 6 corundum treated rubies with a total weight of 1.60 carats.
Diamond, White Diamond, Ruby, 18k Gold, White Gold
18kt White Gold Ring 4.05ct Burma Ruby, 5.76ct Diamonds, CGL Certified
Located in Antwerp, BE
Diamonds: Approx 5.76 carat. RUBY'S: 4.05 carat in total, Burma Myanmar, red, sugar loaf, ruby, Variety of corundum of natural origin, Indications of heating.
Diamond, Ruby, White Gold, 18k Gold
Platinum GIA 1.45ct Vivid Red Ruby Pear No Heat & Diamond Sides Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby. Stock Number: MK-190208133 --Certification Details:-- Laboratory: GIA Report Number: 2231533494 Stone Type: Natural Corundum - Na...
Diamond, Ruby, Platinum
18k White Gold 1.61ctw GIA Pear Burma Ruby w/ Diamond Halo Pendant Necklace
Located in Montclair, NJ
Comes w/ the original GIA certification for the ruby. Stock Number: MK-13086517 --Certification Details:-- Laboratory: GIA Report Number: 2245078071 Shape: Pear Cutting Style: Crown...
Diamond, Ruby, Gold, 18k Gold, White Gold
18k Yellow Gold GIA 2.46ct Burma No Heat Cushion Ruby Collet Solitaire Ring
Located in Montclair, NJ
Stock Number: 460198513 --Certification Details:-- Laboratory: GIA Report Number: 5231712490 Shape: Cushion Cutting Style: Brilliant Cut (Crown) - Step Cut (Pavilion) Transparency: ...
Ruby, Gold, 18k Gold, Yellow Gold
Vintage Platinum AGL 4.84ctw Burma Prominent Star Ruby w/ Diamond Cocktail Ring
Located in Montclair, NJ
Comes with the original AGL certification for the ruby. Stock Number: MK-610201033 --Certification Details:-- Laboratory: AGL Report Number: 1147255 Mineral Type - Variety: Natural ...
Diamond, Ruby, Platinum
Vintage 18K Yellow Gold 0.31ctw Ruby Eyes Diamond Movable Clown Drop Pendant
Located in Houston, TX
Bezel Set in 18 Karat Yellow Gold with: Two (2) natural, round-shaped, brilliant cut rubies: Species: Natural Corundum Variety: Natural Ruby Measurements: 1.20mm - 1.30mm in diamet...
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
Vintage Platinum GIA 4.49ctw No Heat Oval Star Ruby & Diamond Cocktail Ring
Located in Montclair, NJ
Comes with original GIA certification for the star ruby. Stock Number: MK-130112533 --Certification Details:-- Laboratory: GIA Report Number: 2235497969 Stone Type: Natural Corundum...
Diamond, Ruby, Platinum
B Kieselstein Cord Platinum GIA Ruby & Diamond Cuff Clip on Statement Earrings
By KIESELSTEIN-CORD
Located in Montclair, NJ
The earrings come with the original GIA certification for the rubies. Stock Number: MK-440197028-23092518-PAR-EY --Certification Details:-- Laboratory: GIA Report Type: Ruby Origin ...
Diamond, Ruby, Platinum
Trabert & Hoeffer Mauboussin Platinum GIA Ruby Aquamarine Diamond Flower Brooch
By Trabert & Hoeffer Mauboussin
Located in Montclair, NJ
Comes with original GIA certifications for the rubies & aquamarines. Excellent condition! Stock Number: MK-780525231 --Certification Details For Ruby:-- Laboratory: GIA Report Type:...
Aquamarine, White Diamond, Ruby, Gold, White Gold, Platinum
Vintage 18K Yellow Gold 4.16ctw Invisible Set Ruby Diamond Mystery Band Ring
Located in Houston, TX
Bezel Set in 18 Karat Yellow Gold with: Two (2) natural, round-shaped, cabochon cut rubies: Species: Natural Corundum Variety: Natural Ruby Measurements: 2.70mm - 2.80mm in diamete...
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
Solid Gold GIA Vivid Red Burma No Heat Ruby Diamond Cluster Drop Earrings
Located in Montclair, NJ
Comes with original GIA certification for 2 randomly picked rubies. Stock Number: MK-640319530 --Certification Details:-- Laboratory: GIA Report Number: 5231904836 Shape: Round Cut...
Diamond, Ruby, Gold, Yellow Gold
Platinum GIA 2.53ctw Oval Ruby w/ Baguette & Round Diamond Flared Ballerina Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby. Stock Number: MK-120128596 --Certification Details:-- Laboratory: GIA Report Number: 2235650260 Stone Shape: Oval Cutting Style: ...
Diamond, Ruby, Platinum
$76,000Sale Price|20% Off
GIA Certified 4.22 Carat Vivid Red Ruby Diamond Cocktail Ring
By Antinori Fine Jewels
Located in Chicago, IL
Unveiling the Essence: Species: Natural Corundum Gemstone & Variety: Natural Ruby Geographic Origin: BURMA Unparalleled Clarity: Witness the rare clarity and transparency rarely see...
Diamond, White Diamond, Ruby, 18k Gold
Pradera Jewels 18K Gold & Silver Bracelet with Diamonds, Ruby & Sapphire
By Pradera Irama
Located in Neguri, Vizcaya
Bracelet in 18Kt yellow gold 8.1 grams, silver 69.54 grams, 8 carat diamonds, corundum treated ruby 221.6 carats and sapphire 7.72 carats PRADERA is a second generation of a fam...
Diamond, Sapphire, Ruby, 18k Gold, Silver
Vintage High Quality Platinum GIA 3.72ctw Vivid Red Ruby Diamond Ballerina Ring
Located in Montclair, NJ
Comes w/ original GIA certification for the ruby. Stock Number: MK-130294310 --Certification Details:-- Laboratory: GIA Report Number: 5232484455 Shape: Cushion Cutting Style: Crown...
Diamond, Ruby, Platinum
Vintage Early Retro Gold Platinum GIA Burma Ruby Diamond Buckle Style Band Ring
Located in Montclair, NJ
Comes with original GIA certification for the center ruby. Stock Number: MK-160169971 --Certification Details:-- Laboratory: GIA Report Number: 2245093908 Stone Shape: Cushion Cutti...
Diamond, Ruby, Gold, Yellow Gold, Platinum
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.