ALGT Certified 1.72 Carat Natural Tanzania Deep Red Ruby
Located in AMSTERDAM, NL
Offered beautiful 1.76 carat Deep Red Ruby. ALGT certificate is available. Weight: 1.76 Carats Shape: oval mixed cut Gem Dimensions: 8.92 x 6.36* 3.27 mm Color: Deep Red Treatment: ...
Ruby
AIG Certified 3.00 Tanzania Ruby Diamonds 18K Gold Ring
Located in New Delhi, Delhi
Stunning ring come in 18k gold with a lustrous Natural Tanzania Ruby of 3,00 carat, in perfect pear cut , spectacular vivid red, common heated,fine grade , and Natural Diamonds of 0...
Diamond, Ruby, 18k Gold
GIA Certified 3 Carat Pear Shaped Tanzanian Ruby Freeform Ring
Located in Houston, TX
This unique ring showcases a vibrant 3.00 carat pear-shaped untreated Tanzanian ruby in a polished 18 karat yellow gold bezel setting.
Ruby, 18k Gold, Yellow Gold
10.89 ctw Diamond & Tanzanian Cabochon Ruby 18K Yellow Gold Halo Ring
Located in Tysons, VA
Centering a 9.98 carat natural oval ruby from Tanzania, this elegant cocktail ring features a richly colored cabochon stone surrounded by brilliant-cut diamonds totaling 0.91 carats.
Diamond, Ruby, 18k Gold, Yellow Gold
Bangle Carved Ruby in Zoisite Inner Diameter
Located in Northampton, MA
And it's not: it is "ruby in zoisite" fropm Tanzania. You know what ruby is.
Ruby
Unheated Red Ruby Stone 3.10 cts in 18K Two Tone Ring with Diamonds / GIA Report
Located in Los Angeles, CA
Discover the timeless elegance of the Natural Unheated Tanzanian Ruby, masterfully set in an 18K two-tone ring adorned with dazzling diamonds.
Diamond, Ruby, 18k Gold, White Gold, Yellow Gold
GIA certified Unheated Ruby Necklace in 22k solid gold chain
Located in Singapore, SG
This piece features one Tanzania Ruby at the center with two natural Burmese unheated rubies that float gracefully around the neck on a 22k (916 - 91.6% pure gold) solid gold chain.
Ruby, Yellow Gold, 22k Gold
$9,998
H 0.76 in W 0.54 in
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
GIA Certified 1.22ct Untreated Deep Red Ruby 18k Yellow Gold Oval East West Ring
By Gems and Jewels UK
Located in Birmingham, GB
Fully certified by GIA and AIGS gem labs. Confirming ruby as natural and untreated. Tanzania origin. Untreated rubies are very rare and the price is continuously rising for these sto...
Ruby, Gold, 18k Gold, Yellow Gold
GIA 4.97 ct UnHeated Cabochon Ruby Necklace Halo Diamonds in 18k Yellow Gold
Located in La Jolla, CA
The ruby originates from Tanzania and has not been heat treated.
Diamond, Ruby, 18k Gold, Yellow Gold
$11,682
H 1.97 in W 0.24 in D 0.2 in L 0.24 in
Long Moonstone Ruby Gold Earrings Natural Gemstones White Lotus gift wedding art
Located in Berlin, DE
14K gold earrings with natural Moonstones and Rubies moonstones origin - Tanzania and Sri-Lanka (Ceylon) rubies origin - Thailand moonstone measurements cabochon - 0.2 x 0.24 x 0.24 ...
Moonstone, Ruby, Gold, 14k Gold, White Gold
1.51ct Cushion Red Ruby Unheated
Located in Toronto, Ontario
Colour: Red Treatment: None Origin: Tanzania Notes: Internal SKU: R0310 Please quote SKU if you have any questions about this gem.
Ruby
Unavailable
18K Rose Gold Ruby Diamond Pendant Earrings
Located in New York, NY
Accompanied by four GRS certificates stating that all rubies are of Tanzanian origin with no indications of heating.
Diamond, Ruby, Rose Gold
Vintage Sterling Amethyst & Ruby Zoisite Necklace Pendant
Located in Montreal, QC
Vintage sterling silver amethyst 10mm beads and silver pendant with ruby-zoisite. Genuine stone from Tanzania, measures 18 inches long.
Amethyst, Ruby, Sterling Silver
A.Jeschel Spectacular Ruby Zoisite Collar necklace.
By A.Jeschel One-of-a-kind
Located in Miami, FL
Securing this extraordinary piece is a vintage green glass button, artfully stamped, and set in sterling silver, offering a touch of timeless elegance and sophistication. Originating...
Ruby, Sterling Silver
Rare: 2.38 ct Neon Hot Pink Mahenge Spinel, Designer Cut
Located in Sheridan, WY
GEMSTONE TYPE: Unheated Natural Spinel RECOMMENDED JEWELRY SETTINGS: Men Rings, Men Jewelry, Women Vintage Rings, Art Jewelry, RARE Rings, RARE Jewelry CERTIFICATE: AGL/GIA Full Lab ...
Ruby, Spinel, Padparadscha Sapphire
RARE: 1.58 ct Neon orangish-Red Mahenge Spinel, design cut
Located in Sheridan, WY
GEMSTONE TYPE: Unheated Natural Spinel RECOMMENDED JEWELRY SETTINGS: Men Rings, Men Jewelry, Women Vintage Rings, Art Jewelry, RARE Rings, RARE Jewelry CERTIFICATE: AGL/GIA Full Lab ...
Padparadscha Sapphire , Ruby, Spinel
Mahenge Spinel, Solitaire Ring, Spinel Engagement Ring, August Birthstone Ring
Located in Sheridan, WY
GEMSTONE TYPE: Unheated Natural Spinel, RARE: Neon Fire Pink Mahenge Spinel RECOMMENDED JEWELRY SETTINGS: Solitaire Ring, Spinel Engagement Ring, August birthstone ring, Women Annive...
Pink Diamond, Ruby, Pink Sapphire, Spinel, Padparadscha Sapphire
Fabergé Colours of Love Rose Gold Spessartite Fluted Ring with Diamond Shoulders
By Fabergé
Located in London, GB
Additional Information: Details: 18K Rose Gold, 1 (8x6) oval spessartite total weight 2.38ct, (Origin: Tanzania) 22 round white diamonds total weight 0.20ct, 1 round ruby total weig...
White Diamond, Rose Gold
Fabergé 18K Rose Gold Oval Spessartite Ring w/ Diamond Set Shoulder, US Clients
By Fabergé
Located in London, GB
Additional Information: Details: 18K Rose Gold, 1 (8x6) oval spessartite total weight 2.38ct, (Origin: Tanzania) 22 round white diamonds total weight 0.20ct, 1 round ruby total weig...
White Diamond, Rose Gold
1.96 Carat Vivid Red Ruby & 1.10 Carat Tanzanian Tsavorite 18K Designer Ring
By Malpani Jewels
Located in Hung Hom, HK
An elaborate and intricate design containing 1.96 carat of vivid red ruby and 1.10 carat of Tanzanian Tsavorite is set along with 1 carat of white diamond.
Diamond, White Diamond, Ruby, Tsavorite, 18k Gold
Antique Platinum GIA 1.34ctw No Heat Oval Deep Red Ruby Baguette Diamonds Ring
Located in Montclair, NJ
Comes with original GIA certification for the center ruby. Stock Number: MK-16099414 --Certification Details:-- Laboratory: GIA Report Number: 6233494486 Stone Shape: Oval Cutting S...
Diamond, Ruby, Platinum
12.12 Carat GRS No Heat Oval Vivid Red Ruby Diamond Cluster Earrings Winza
Located in New York, NY
GRS Certified No Heat Tanzania Matching Ruby Cluster earrings. 3.69ct. & 3.63ct. 9.72 X 8..06 X 5.07 & 9.85 x 8.12 X 4.82mm Oval Brilliant Cuts Winza, Tanzania Origin & No hea...
Diamond, Ruby, 14k Gold, White Gold
12.12 Carat GRS No Heat Oval Vivid Red Ruby Diamond Cluster Earrings Winza
Located in New York, NY
GRS Certified No Heat Tanzania Matching Ruby Cluster earrings. 3.69ct. & 3.63ct. 9.72 X 8..06 X 5.07 & 9.85 x 8.12 X 4.82mm Oval Brilliant Cuts Winza, Tanzania Origin & No hea...
Diamond, Ruby, 14k Gold, White Gold
New 18k Gold Gia 1.86ctw No Heat Sugarloaf Cabochon Cut Ruby & Diamond Ring
Located in Montclair, NJ
Stock Number: MK-170124896 --Certification Details:-- Laboratory: GIA Report Number: 2231214106 Shape: Cushion Sugarloaf Transparency: Transparent Color: Red Species: Natural Corund...
Diamond, Ruby, 18k Gold
14k White Gold GIA Oval No Heat Ruby w/ Diamond Halo Concentric Ring
Located in Montclair, NJ
Comes with original GIA certification for the ruby. Stock Number: MK-17045600 --Certification Details:-- Laboratory: GIA Report Number: 1232649972 Stone Shape: Oval Cutting Style: C...
Diamond, Ruby, Gold, 14k Gold, White Gold
877.81 Carats Natural Tanzania Ruby Ganesha Carving Statue
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
Crafted from a staggering 877.81 carats of natural Tanzania Ruby, this Ganesha carving transcends the boundaries of traditional artistry.
Ruby
14.84 Carat Natural Red Tanzania Cushion Ruby White Gold Certified Earrings
Located in London, GB
Natural, unheated Ruby Earrings. 18 Karat White Gold. STONE TYPE Ruby DISPLAY COLOR Red SHAPE Cushion WEIGHT (MAIN STONE) 12.11 SIDE STONES WEIGHT (CT.) 2.73 ORIGIN Tanzania GOLD...
Diamond, White Diamond, Ruby, Gold, 18k Gold, White Gold
Certified 4.21 Carat Unheated Tanzanian Ruby Diamond 18 Karat White Gold Ring
By Les Pierres de Julie
Located in Paris, FR
Stunnig ring set with a 4.21 carat unheated Tanzanian cushion cut ruby (Carat Gem Lab Certificate).
Diamond, Ruby, 18k Gold, White Gold
18 Carat Natural Tanzanian Neon Vibrant Pinkish Red Mahenge Spinel
By D and A Style
Located in Singapore, SG
Extremely rare Mahenge spinel from Tanzania with fascinating color. The stone with such size and quality is now simply impossible to find on the market. Spinel Mahenge is mined in ...
Ruby, Sapphire, Spinel
6, 08 Carat Natural Tanzanian Neon Vibrant Pinkish Red Mahenge Spinel
By D and A Style
Located in Singapore, SG
Extremely rare Mahenge spinel from Tanzania with fascinating color. The stone with such size and quality is now simply impossible to find on the market. Spinel Mahenge is mined in ...
Ruby, Sapphire, Spinel
11.30 Carat Natural Tanzanian Mahenge Spinel GRS Certificate
By D and A Style
Located in Singapore, SG
Amazing and unusual Mahenge spinel from Tanzania with unbelivable color. The stone with such size and quality is now simply impossible to find on the market. Spinel Mahenge is mine...
Ruby, Spinel, Gold, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
7, 53 Carat Natural Tanzanian Neon Vibrant Orangy Pink Mahenge Spinel
By D and A Style
Located in Singapore, SG
Extremely rare Mahenge spinel from Tanzania with fascinating color. The stone with such size and quality is now simply impossible to find on the market. Spinel Mahenge is mined in ...
Ruby, Sapphire, Spinel
6, 03 Carat Natural Tanzanian Neon Vibrant Reddish Pink Mahenge Spinel
By D and A Style
Located in Singapore, SG
Extremely rare Mahenge spinel from Tanzania with fascinating color. The stone with such size and quality is now simply impossible to find on the market. Spinel Mahenge is mined in ...
Ruby, Sapphire, Spinel
10, 21 Carat Natural Tanzanian Neon Vibrant Reddish Pink Mahenge Spinel
By D and A Style
Located in Singapore, SG
Extremely rare Mahenge spinel from Tanzania with fascinating color. The stone with such size and quality is now simply impossible to find on the market. Spinel Mahenge is mined in ...
Sapphire, Spinel, Ruby, Gold, 18k Gold, Rose Gold, White Gold, Yellow Go...
Art Deco GIA Certified 3.50 Carat Natural Ruby Cabochon, Onyx, and Diamond Ring
Located in Narberth, PA
Crafted in platinum, this beautiful ring frames a 3.50ct natural no-heat Tanzanian ruby at the center of a filigree mounting.
Diamond, Onyx, Ruby, Platinum
Fine Ruby and Diamond Ring 7.56 Carat in 18 Karat White Gold
Located in Miami, FL
Framed with 10 natural earth mined excellent quality round diamonds weighing 2.95 carats total, averaging G-H in color and VS2-SI1 in clarity. Ruby is natural earth mined cushion sha...
Diamond, Ruby, 18k Gold, White Gold
Steven Battelle 11.5 Carats Rainbow Moonstone Cabochon 18K Gold Ring
By Steven Battelle
Located in Soquel, CA
A magical high dome 12 x 14 mm rainbow moonstone cabochon enchants surrounded by an organic line texture wide sculpted bezel in this classically simple 18K gold ring design. The mute...
Moonstone, Rainbow Moonstone, 18k Gold
$189,750
Turquoise and Diamond Necklace
By Diamond Scene New York
Located in New York, NY
An INCREDIBLE necklace with Fine Persian Turquoise. 102 carats of Persian Turquoise 59.95 carats of white pear, round and marquise cut diamonds. Set in platinum 18 inch leng...
Diamond, Turquoise, Platinum
Dainty Heart Cut Ruby Unisex Ring in 18k Solid Yellow Gold, Signet Ring for Her
By VR Jewels
Located in New York, NY
Dainty Heart Cut Ruby Unisex Ring, Signet Ring for Her in 18K Gold featuring natural ruby of 0.25 carats. The gorgeous handcrafted ring goes with every style, every occasion or any o...
Ruby, Gold, 18k Gold, Yellow Gold
Emilio Jewelry GRS Certified 7.50 Carat Burma No Heat Pigeon Blood Ruby Ring
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, and details. Zoom meetings...
Ruby
GIA Certified 7.0 Carat Heart Shape Pink Diamond Cocktail Ring
By GEMME
Located in New York, NY
Heart Shape Diamond weighing 7.0 Carat with GIA certificate stating the Diamond is of Fancy Pink color and VS2 Clarity. Surrounded by reverse set White Diamonds weighing 5.02 Carats....
Pink Diamond, Platinum
Emilio Jewelry Grs Certified Burma 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, Featuring one of the rarest Natural Rubies in the world. This ruby has r...
Ruby, Platinum
Emilio Jewelry Gia Certified 12.00 Carat Pink Diamond Ring
By Emilio!
Located in New York, NY
From Emilio Jewelry, a well known and respected wholesaler/dealer located in the Iconic Gem Tower/Gia Building in New York's Diamond District. This item has been appraised by the exp...
Pink Diamond
7.55 Carat Peach Tourmaline Emerald Cut Platinum Diamond Ring
By Merkaba
Located in Beverly Hills, CA
A 7.55 carat peach tourmaline emerald cut platinum diamond ring, handcrafted by Merkaba Jewelry Beverly Hills as a romantic collector jewel and meaningful alternative engagement ring...
Diamond, Tourmaline, White Diamond, Emerald, Platinum
$76,000Sale Price|20% Off
GRS Certified 7.30 Carat VIVID Green Emerald Half moon Diamond ring
By Antinori Fine Jewels
Located in Chicago, IL
An exquisite 7.30 oval green vivid green emerald certified by GRS zambian origin side diamonds are half moons and weight 1 carat e color vvs clarity set in solid platinum
Diamond, White Diamond, Emerald
GIA 6.26 Carat Natural No Heat Burma Red Spinel Diamond Engagement Platinum Ring
By Emeralds Maravellous
Located in Brunswick, ME
Fine unheated GIA-certified natural Burma red spinel and diamond engagement three-stone ring in platinum. The cushion-cut natural Burmese red spinel weighs a total of 5.16 carats and...
Diamond, Spinel, Platinum
GIA Certified Mozambique Unheated Ruby with Diamond Ring set in 18K White Gold
Located in Bangkok, TH
Mozambique Unheated Ruby 3.05 carats with Diamond 2.49 carats Ring set in 18K White Gold Settings (GIA Certified) Width: 1.8 cm Length: 2.0 cm Ring Size: 53 Total Weight: 11.22 gr...
Diamond, Ruby, 18k Gold, White Gold
Buccellati Burmese Ruby Ring, Italian, circa 1940
By Mario Buccellati
Located in London, GB
Buccellati Burmese ruby ring. Set with an oval mixed cut natural unenhanced Burmese ruby in an open back rubover setting with an approximate weight of 1.20 carats, to an impressive s...
Ruby, 18k Gold
GIA 6.80 Carat Natural Colombian Emerald Solitaire Ring 18K Gold
By Emeralds Maravellous
Located in Brunswick, ME
GIA Certificate Colombian Emerald Solitaire Engagement Ring, set in yellow gold 18k The Center Stone in a Classic shape/cutting style: Emerald Cut full of brilliance and life! Featu...
Emerald, 18k Gold, Gold, Yellow Gold
Hancocks 3.73ct G VVS2 Old-Cut Pear Shaped Diamond Ring with Engraved Gold Band
By Hancocks
Located in London, GB
A stunning pear shape diamond solitaire ring by Hancocks, set with a wonderfully bright and lively old-cut pear-shaped diamond weighing 3.73ct and of G colour and VVS2 clarity, in a ...
White Diamond, 18k Gold, Platinum
Emilio Jewelry Gia Certified 14.65 Carat Pinkish Brown Diamond Ring
By Emilio!
Located in New York, NY
From Emilio Jewelry, a well known and respected wholesaler/dealer located in the Iconic Gem Tower/Gia Building in New York's Diamond District. This item has been appraised by the ex...
Pink Diamond, Brown Diamond
Untreated Burma Ruby Bypass Ring, 5.70 Carats
Located in New Orleans, LA
The exquisite 5.70-carat ruby and 4.54-carat diamond showcased in this bypass ring create a tantalizing interplay. The pear-shaped crimson gemstone is certified by the American Gemol...
Diamond, Ruby, 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.