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
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
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
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
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
AGL and GRS Certified 9.09 ct Unheated Burma Star Ruby Diamond 18KYG Ring
Located in Los Angeles, CA
The best things in life are everlasting. And our gemstones will never fade, just like your love for each other. Live, love and laugh with this stunning dainty ruby ring. With GRS and...
Diamond, Ruby, Star Ruby, Gold, 18k Gold, Yellow Gold
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
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
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
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
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 0.32 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 0.63 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
Van Cleef & Arpels Platinum 6.00cttw Double Row Marquise Cut Diamond Band
By Van Cleef & Arpels
Located in New York, NY
Elevate your sense of timeless elegance with the Van Cleef & Arpels Platinum Double Row Marquise Cut Diamond Eternity Band. This exquisite piece, designed to adorn your finger with u...
Diamond, Platinum
Dolce & Gabbana Lace up Silk Dress
By Dolce & Gabbana
Located in Water Mill, NY
A beautiful stretch silk leopard print dress from Dolce & Gabbana. The bodice has adjustable straps, functional and adjustable side lacing through to the hips plus rows of top st...
$4,640Sale Price|20% Off
2.18 Carat Natural Round Brilliant Ruby 14K Yellow Gold Drop Earrings
Located in Chicago, IL
💎 Total Carat Weight: 2.18ct 🔴 Gemstone: Natural Ruby (Matching Pair) ✨ Cut: Round Brilliant 📏 Measurements: 6.09 mm x 5.89 mm This stunning pair of natural rubies 14K Yellow Gol...
Ruby, Yellow Gold
LES HABITUDES 90's Vintage Couture Ivory Beaded Silk Bridal Wedding Gown w.Shawl
By Eavis & Brown
Located in Leonardo, NJ
Les Habitudes / Eavis & Brown Couture created, entirely hand-made in a London atelier Wedding gown with matching shawl Vintage 1990's Photographs a little "whiter" than it looks ...
Bill Blass Cross Back Dress 1980s
By Bill Blass
Located in Water Mill, NY
A fabulous black jersey dress from Bill Blass. It is semi fitted with a full gathered skirt. The back is bare to just below the waist with the exception of straps which meet at a me...
$8,120Sale Price|20% Off
Gia Certified, 0.40ct Fancy Light Pink Pear, Natural Fancy Color Diamond Ring
Located in Hong Kong, HK
0.40ct Pear shaped natural fancy light pink GIA Certified diamond mounted on 18kt gold with small natural pink and white diamonds. A stunning and elegant piece, this fancy light pi...
Pink Diamond, 18k Gold
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
LES HABITUDES 90's Vintage Couture Hand-Beaded w. Pearls White Silk Bridal Gown
By Eavis & Brown
Located in Leonardo, NJ
Les Habitudes / Eavis & Brown Couture created, entirely hand-made in a London atelier Vintage 1990's Heavy 100% ivory white silk (might look a little more cream on the hanger, bu...
$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...
$19,119
H 2.76 in Dm 1.58 in
Fabergé Egg Object 18 K Yellow Gold Blue Guilloche Enamel Paillons Ruby Cabochon
By Fabergé
Located in Pforzheim, DE
Fabergé Egg Object of Art, 18k Yellow Gold, Blue Guilloché Enamel with Paillons, Ruby Cabochon 0.75 ct This Fabergé egg, created around 1995 by the workmaster Victor Mayer, is a mas...
Diamond, Ruby, 18k Gold, Yellow Gold, Enamel
Cartier Riviera Necklace: 23.40ct Diamond in Platinum Setting
By Cartier
Located in London, GB
Lignes Essentielles necklace, platine 950/1000, set with 97 brilliant-cut diamonds totalling 23.40 carats. Please note that the carat weight, number of stones and product dimensions...
Diamond, 18k Gold
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
1960s Vintage Victoria Royal Pink Silk Beaded Cocktail Dress US 4 UK 8
By Victoria Royal
Located in Nashville, TN
Rendered in the softest shade of pale pink shantung silk and embellished with bright gold beads, pearlescent beads and pink claw set rhinestones, in a swirling paisley pattern, this ...
Emilio Jewelry Certified 10.00 Carat Mozambique No Heat Ruby
By Emilio!
Located in New York, NY
From Emilio Jewelry, a well known and respected wholesaler/dealer located on New York’s iconic Fifth Avenue, Please inquire for more images, certificates, details, and any questio...
Ruby
Pierre Cardin 1960s Scarf Hem Dress
By Pierre Cardin
Located in Water Mill, NY
An incredible forest green silk maxi dress with red, orange, rust, blue and celery green dots by Pierre Cardin. The dress is sleeveless with a crew neck and attached by a point at mi...
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.