9.91 Carat Unheated Star Ruby Cabochon Ring in Platinum with 1.71 Carat Diamond
By Merkaba
Located in Beverly Hills, CA
Merkaba Jewelry Beverly Hills presents a rare, collector caliber 9.91 carat unheated Star Ruby ring, prized for its beautifully defined asterism that appears as light moves across th...
Diamond, White Diamond, Multi-gemstone, Ruby, Star Ruby, Platinum
$59,500Sale Price|31% Off
GIA Certified 16.52 Carat Unheated Star Ruby and Diamond Ring
Located in New York, NY
This extraordinary, untreated star ruby is a true marvel of nature, weighing a monumental 16.52 carats — an exceptionally rare size for a gemstone of this caliber.
Diamond, Ruby, Star Ruby, Platinum
$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
$2,080Sale Price|20% Off
2.61 Ct GIT Certificate Unheated star ruby Burma gemstone Red color No heat
Located in bangkok, TH
RMA114~ 2.61 Ct GIT Certificate Natural star ruby Burma gemstone Red color eye clean clarity GIT Star Ruby Burma Weight 2.61ct Clarity : Eye clean Origin : Burma Color : Red Star : ...
Ruby, Star Ruby
Unheated 19.91ct Burma Star Ruby and Diamond Cocktail Ring in Platinum
Located in La Jolla, CA
The star ruby is unheated with pinkish red color and AIGS certified (please see photo gallery).
Diamond, Ruby, Star Ruby, Platinum
$3,201Sale Price|20% Off
Mozambique Ruby 1.65Cts Cut Stone Unheated Ruby AAA+Natural Certified Ruby
Located in Chicago, IL
Shape: Oval Modified Item: No Country/Region of Manufacture: India Certification: IGI Natural/Lab-Created: Natural Depth: 4mm Gemstone Type: Ruby Length: 7.48 mm Width: 5.45 mm Cut G...
Ruby
$1,762Sale Price|20% Off
Mozambique Ruby 1.00Cts Cut Stone Unheated Ruby 100% Natural Certified Ruby
Located in Chicago, IL
Shape: Oval Modified Item: No Country/Region of Manufacture: India Certification: IGI Natural/Lab-Created: Natural Depth: 2.80 mm Length: 6.95 mm Width: 5.55 mm Cut Grade: Excellent ...
Ruby, Yellow Gold, 14k Gold
$1,950Sale Price|20% Off
3.30cts Mozambique Blood Red Unheated 100% Natural Ruby Cut Stone
Located in Chicago, IL
Shape: Oval Modified Item: No Country/Region of Manufacture: India Certification: IGI Natural/Lab-Created: Natural Depth: 4.44 mm Length: 10.42 cts Width: 7.34 cts Cut Grade: Excelle...
Ruby
$2,064Sale Price|20% Off
3.30cts Mozambique Ruby Blood Red Cut Stone Unheated 100% Natural Certified
Located in Chicago, IL
Shape: Oval Modified Item: No Country/Region of Manufacture: India Certification: IGI Natural/Lab-Created: Natural Depth: 4.95 mm Length: 9.62 mm Width: 7.20 mm Cut Grade: Excellent ...
Ruby
8.76 Carat Burma No Heat Star Ruby and Diamond Platinum Ring
Located in Miami, FL
GRS certified 8.76 carat unheated star ruby cabochon ring set in platinum with 0.88 carat baguette cut diamonds.
Diamond, Star Ruby, Gold, Yellow Gold, Platinum
GIA Unheated Burma Star Ruby and White Diamond Cocktail Ring
Located in Los Angeles, CA
Gorgeous 3.56 ct. GIA unheated Burma purplish pink star ruby oval cabochon with 2.50 ct. good quality white diamond rounds and baguettes.
White Diamond, Ruby, Star Ruby, 18k Gold
6.58 Ct ICA Certificate Natural No heat star Ruby Unheated Diamond Ring 12.75 G
Located in bangkok, TH
E059 6.58 Ct ICA Certificate Natural star ruby Unheated diamond ring 12.75gram Platinum900 Weight : 12.75gram Main stone: 6.58ct Star Ruby Burma Unheated Color: Red Clarity: ...
Star Ruby
Certified Unheated Star Pink Sapphire, Diamond Ring in 18K Rose Gold
Located in Bangkok, TH
Star Pink Sapphire 4.09 carats with Pink Sapphire 0.32 carat and Diamond 0.25 carat Ring set in 18 Karat Rose Gold Settings (GIT Certified, The Gem and Jewelry Institute of Thailand)...
Diamond, Ruby, Pink Sapphire, Star Ruby, 18k Gold, Rose Gold
3.04 Carat Natural Untreated Burmese Star Ruby and Diamond Ring Made in Platinum
Located in Tokyo, JP
A beautiful Ring made in Platinum featuring a 3.04 Carat Natural Unheated, Burmese Star Ruby and 1.21 Carat Diamonds.
Diamond, Ruby, Star Ruby, Platinum
4.95 Carat Natural Untreated Burmese Star Ruby and Diamond Ring Made in Platinum
Located in Tokyo, JP
A beautiful Ring made in Platinum featuring a 4.95 Carat Natural Unheated, Burmese Star Ruby and 1.93 Carat Diamonds.
Diamond, Star Ruby, Ruby, Platinum
GIA Cert. 9.72 Carat No Heat Star Ruby & Diamond Platinum Cocktail Ring
Located in Miami, FL
GIA Certified unheated 9.72-carat purplish red star ruby sits at the heart of this vintage mixed cut diamond platinum ballerina-style ring.
Diamond, Star Ruby, Platinum
GIA Certified 2.85 Carat Natural Star Ruby and Diamond Ring Made in Platinum
Located in Tokyo, JP
A beautiful Ring made in Platinum featuring a GIA Certified 2.85 Carat Natural Unheated, Burmese Star Ruby and 1.27 Carat Diamonds.
Diamond, Star Ruby, Platinum
5.71Ct unheated Burmese Cabochon Star Ruby & diamond cluster ring 18k white gold
Located in London, GB
This exquisite unheated Burmese star ruby and diamond cluster ring is set in 18k white gold, and the ruby is round cabochon star ruby with 5.71 carats , surrounded with natural ro...
Diamond, Ruby, Star Ruby, 18k Gold, White Gold
Unavailable
W 0.46 in D 0.27 in L 0.39 in
8.12ct Oval Purplish Red Star Ruby GIA Certified Vietnam Unheated
Located in Toronto, Ontario
This is a stunning GIA Certified Star Ruby The GIA report reads as follows: GIA Report Number: 5232524174 Shape: Oval Cutting Style: Double Cabochon Cutting Style: Crown: Cuttin...
Ruby
28.75 Carat Unheated Star Ruby Diamond Halo Pendant
Located in Birmingham, AL
This magnificent center stone is a 28.75ct (apx) deep purplish red star ruby with a PGS certificate indicating is has no heat treatment. This beautiful stone measures 18.6 x 13.8 x 1...
Diamond, White Diamond, Ruby, 14k Gold
【Énigma】Platinum Star Ruby & Diamond Ring, 1.04ct Unheated Cabochon
By The Pearl Vogue
Located in New York, NY
This one-of-a-kind platinum ring features a rare 1.04 carat unheated star ruby, prized for its strong six-rayed asterism and intense violet-red hue.
Diamond, Star Ruby, Platinum
Unheated 56 Burma Star Ruby Cabochon and Diamond Necklace, Part of Set
Located in New York, NY
A stunning Unheated Burma Star Ruby Cabochon and Diamond Necklace, part of a set which includes earrings and two pendants.
Diamond, Ruby, Star Ruby, 14k Gold
GIA Certified Unheated Burmese Star Ruby and Diamond Platinum Ring, 5.28 Carats
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This gorgeous, unheated gem has a straight, centered and complete star.
Diamond, Ruby, Star Ruby, Platinum
Unheated Star Ruby Ring 9.91 Carat GIA Certified No Heat
By Merkaba
Located in Beverly Hills, CA
Natural 9.91 carat unheated Star Ruby, displaying distinct and impeccably defined Asterism, surrounded by 48 gradually set, round brilliant diamonds, weighing a total of 1.71 carats,...
Diamond, Ruby, White Diamond, Multi-gemstone, Star Ruby, Platinum
Art Deco 6.51 Carat GIA Cert Star Burma Ruby Diamond Platinum Ring
Located in Aspen, CO
., is a fine natural unheated star ruby accented by fancy cut diamonds.
Diamond, Ruby, Platinum
Sold
W 0.32 in D 0.17 in L 0.43 in
Personalized listing for IGI CERTIFICATE for Mozambique Unheated Ruby
Located in Chicago, IL
Shape: Pear Modified Item: No Country/Region of Manufacture: India Certification: IGI Natural/Lab-Created: Natural Depth: 4.20 mm Length: 10.67mm Width: 8.02 mm Cut Grade: Excellent ...
Ruby
Sold
W 0.32 in D 0.17 in L 0.43 in
3.20 cts Mozambique Deep Blood Red Unheated Ruby Cut Stone 100% Natural
Located in Chicago, IL
Shape: Pear Modified Item: No Country/Region of Manufacture: India Certification: IGI Natural/Lab-Created: Natural Depth: 4.20 mm Length: 10.67mm Width: 8.02 mm Cut Grade: Excellent ...
Ruby
Sold
W 0.63 in L 2.17 in
GIA 18K Ruby No Heat Diamond Earrings Star Natural Vintage VVS Huge 19.94 Carats
Located in Sylvania, GA
2 GIA Certified Natural Unheated Cabochon Cut Deep Red Unheated Star Rubies -- Approx. 14.48 Carats 118 Sparkling Round Brilliant Cut Diamonds are VVS-VS Clear, F-G White -- Approx....
Diamond, Ruby, Star Ruby, 18k Gold, Yellow Gold, White Gold
Unheated Pink Purple Sapphire Ring 3.58 Carat Round No Heat
By Tamir
Located in Beverly Hills, CA
Unheated 3.58 carat Pinkish Purple Sapphire round, 18K white gold ring, surrounded by round brilliant diamonds weighing a total of 1.22 carats. Ring size 6.5. Resizing is complementa...
Sapphire, Pink Sapphire, Purple Sapphire, Alexandrite, Amethyst, Aquamar...
8.33 Carat GRS Certified Burma Mogok No Heat Star Ruby White Diamond Gold Ring
Located in Hong Kong, HK
8.33 Carat GRS Certified Burma Mogok No Heat Star Ruby White Diamond Gold Ring: A stunning ring, it features a rare GRS certified Burmese unheated star ruby weighing 8.33 carat surr...
White Diamond, Ruby, Star Ruby, Gold, 18k Gold, White Gold
4.52 Carat GIA Certified Burma No Heat Vivid Red Star Ruby and Diamond Gold Ring
Located in Hong Kong, HK
4.52 Carat GIA Certified Burma No Heat Vivid Red Star Ruby and Diamond Gold Ring: A beautiful and rare jewel, it features a 4.52 carat GIA certified Burma "Mogok" unheated star ruby...
Diamond, White Diamond, Ruby, Star Ruby, 18k Gold, White Gold, Yellow Go...
23.91 Carat Unheated Burmese "Mogok" Star Ruby/Double Cabochon
Located in Hong Kong, HK
23.91 Carat Unheated Burmese "Mogok" Star Ruby/Double Cabochon: A beautiful and very rare gem, it is a massive 23.91 carat unheated Burmese "Mogok" star ruby/double cabochon.
Ruby, Star Ruby
1.86 Carat Unheated Burmese Star Ruby Yellow Gold Engagement Ring
Located in Hong Kong, HK
1.86 Carat Unheated Burmese Star Ruby Yellow Gold Engagement Ring: A rare and unique ring, it features a stunning top quality unheated Burmese star ruby weighing 1.86 carat.
Ruby, Star Ruby, Gold, 18k Gold, Yellow Gold
25.89 Carat GRS Certified Unheated Burmese Star Ruby and White Diamond Ring
Located in Hong Kong, HK
25.89 Carat GRS Certified Unheated Burmese Star Ruby and White Diamond Ring: An extremely rare ring, it features an exquisite unheated Burmese red star ruby weighing 25.89 carat, wi...
Star Ruby, 18k Gold, White Gold
10.27 Carat Gubelin Certified Burma No Heat Star Ruby and White Diamond Ring
Located in Hong Kong, HK
10.27 Carat Gubelin Certified Burma No Heat Star Ruby and White Diamond Ring: A rare piece of jewellery, it features a Gubelin certified unheated Burmese star ruby weighing 10.27 ca...
White Diamond, Ruby, Star Ruby, 18k Gold, White Gold, Yellow Gold
18 White Gold Flower Ruby Invisible Stud Earrings
By La Fleur Jewels
Located in Bangkok, TH
A lovely ruby stud earrings that you can use as everyday.We use the top quality Ruby for our invisible setting.It is deep red and very sparking. The invisible is a highly technique ....
Diamond, Ruby, 18k Gold, White Gold
$1,496Sale Price|20% Off
Bochic “Orient” Vintage Diamond & Fire Opal Ring Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Orient” Vintage Natural Diamond & Fire Opal Ring Set In 18K Gold & Silver Natural Fire Opal - 9.50 Carat Natural Round Brilliant Cut Diamonds 2.00 Carat This Ring...
Diamond, Opal, Fire Opal, 18k Gold, Silver
John Galliano for Christian Dior S/S 2009 Silk Halter Dress
By John Galliano, Christian Dior
Located in Water Mill, NY
A gorgeous rich purple silk halter dress by John Galliano for Christian Dior. It is fitted through the bodice with a stunning intricately detailed ruffle trimmed plunge halter neckli...
$1,675
Size: Extra Small
Beautiful 1960s Extra Small XS Couture Black Silk Chiffon Vintage 60s Gown Dress
Located in San Diego, CA
Beautiful 1960s demi couture black silk chiffon sequin evening gown! Features thousands of hand-sewn black sequins throughout the sleeves and skirt. Thin spaghetti strap underlay wit...
Dolce & Gabbana Lace up Silk Dress
By Dolce & Gabbana
Located in Water Mill, NY
A beautiful silk dress in a pink and green geometric print from Dolce & Gabbana. The bodice is vertically boned, fitted through to the hips and has an attached matching pink adjusta...
$176,000Sale Price|20% Off
GIA Certified 6 Carat Thai Ruby Mirror Clean Rare Investment Ring PT 900
By Malpani Jewels
Located in Hung Hom, HK
First referenced in 1408, Thai Ruby once fulfilled 95 percent of the world's demand for this extremely rare and highly coveted gemstone. Ostensibly depleted since 2009, Thai Ruby is ...
Diamond, White Diamond, Ruby, Platinum
$2,450
Size: IT 42 (US 6 / UK 10 / FR 38)
Gucci By Tom Ford Runway Bodycon Halterneck G Buckle Dress, Spring-Summer 1998
By Gucci, Tom Ford
Located in Geneva, CH
When I sourced this Spring-Summer 1998 Gucci by Tom Ford runway dress, the owner told me how much she loved it. With a big smile, she added that it was now time to let someone else b...
$1,504Sale Price|20% Off
Natural white topaz sterling silver rose gold plated choker necklace
Located in Delhi, DL
This beautiful white topaz choker is a perfect jewel for any special occasion. It has been crafted by the fine artisans using sterling silver. Carefully selected white topaz have bee...
Topaz, Gold Plate, Rose Gold, Sterling Silver
Gianfranco Ferré Vintage Fall Winter 1995 Runway Three-Piece Tuxedo-Inspired Set
By Gianfranco Ferré
Located in Antwerpen, Vlaams Gewest
Vintage Gianfranco Ferré Runway 1995 Three-Piece Tuxedo-Inspired Silk Blouse, Vest & Skirt Set This rare outfit from Gianfranco Ferré’s 1995 runway show is a striking mix of mens...
Emilio Jewelry GIA Certified 12.00 Carat Light Pure Pink Diamond Ring
By Emilio!
Located in New York, NY
From the Museum Vault at Emilio Jewelry New York, Main stone: Gia certified natural 12.00 carat Light Pink diamond with no overtone. Emilio jewelry specializes in creating masterpie...
Pink Diamond
MUGLER Crystal Teardrop Corset Top Rhinestone Corsage
By Mugler
Located in Berlin, BE
Spectacular Mugler Teardrop Corset Top. The beautiful piece showcases Thierry Mugler's signature blend of bold structure and feminine elegance. Crafted in a delicate powder blue, the...
Thierry Mugler Silk Corset Dramatic Sculptural Bustier Top
By Thierry Mugler
Located in Berlin, BE
Stunning extremely rare Thierry Mugler Collectors piece. Dramatic pure Silk bustier, assuming Spring 1985 Collection. A masterpiece of sartorial artistry by the legend Mister Mugler...
Gucci Silk Dress with Hardware and Cut outs
By Gucci, Frida Giannini
Located in Water Mill, NY
A fabulous grey silk jersey dress from Gucci. It is fitted with long sleeves and cut outs at one shoulder and side waist plus a slit along the front of one leg of the straight skirt...
$59,000
W 0.39 in D 0.24 in L 0.46 in
Rare 5.73 Carat Natural Red Spinel Emerald Cut – Collector's Luxury Gemstone
By Merkaba
Located in Beverly Hills, CA
Exceptional 5.73 Carat Natural Red Spinel – A Rare Collector's Gem By Merkaba Beverly Hills. Discover unparalleled luxury with this 5.73 carat natural Red Spinel, an extraordinary u...
Spinel, Emerald, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum,...
$660,000Sale Price|20% Off
Bulgari Twin Ring 5.79ct Emerald and 7.25ct Diamond 18k Gold and Platinum
By Bulgari
Located in New York, NY
This chic BULGARI cocktail ring features an exceptional 5.79 carat AGL certified Colombian emerald and a GIA certified 7.25 carat square emerlad-cut diamond of E color and VS1 clarit...
Diamond, Emerald, 18k Gold, Platinum
Emilio Jewelry GIA Certified 7.02 Carat Natural Blue Diamond Ring
By Emilio!
Located in New York, NY
From the museum vault at Emilio Jewelry New York, One of the rarest and only diamonds of its size and color. Please inquire for details.
Blue Diamond
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.