$2,320Sale Price|20% Off
Oval Ruby Loose unset 9mm oval untreated
Located in Jupiter, FL
Unset loose ruby certified, will come with a box. NATURAL GEMSTONE(S): RUBY Clarity/Color
Ruby
Victorian 3.80 Ct Natural Ruby 4.60 Ct. Diamond 14 KT Gold Riviere Bangle
Located in Napoli, IT
approx 3.75 - not tested for origin for not risking to unset them. Rubies are alternated by 6 in number
Diamond, Ruby, Gold
2.00 Carat Heart Shaped Ruby, Unset Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This heart-shaped ruby weighs exactly 2.00 carats and has beautifully rich, saturated color! It
Ruby
Burma Ruby Ring Gem Vivid Red Pigeon's Blood 2.14 Carat Unset Loose Gemstone
By Tamir
Located in Beverly Hills, CA
This 2.14 carat square emerald-cut, vivid red (described by G.I.A as "Pigeon's Blood") Burmese Ruby
Ruby
18k Two-toned Gold, Diamond "Gift Box" w/ Unset Amethyst Heart Pendant Necklace
By Sarosi By Timeless Gems
Located in Los Angeles, CA
- pearl July - ruby August - peridot September - sapphire October - opal November - citrine December
Amethyst, Diamond, White Diamond, Aquamarine, Citrine, Emerald, Garnet, ...
1.07 Carat Oval Loose Unset Ruby Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This gorgeous 1.07 carat oval ruby has bright, pure red color and sparkles with rich pink
Ruby
Unheated 1.08 Carat Burmese Ruby Oval GIA Unset 3-Stone Engagement Ring Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This gorgeous, unheated gem is a perfect example of why Burmese rubies are so highly prized. With
Ruby
$8,065Sale Price|20% Off
Ring Certified Ruby "Pigeon Blood" White Gold 18 carats, Diamonds
Located in Vannes, FR
Ring Certified Ruby "Vivid Red" "Pigeon Blood" White Gold 18 carats, Diamonds This 18-carat white gold ring is set with a natural "Vivid Red" "Pigeon Blood" ruby, certified by GIL ...
Ruby, Diamond, Gold, 18k Gold, White Gold
$35,000
H 2.76 in W 3.55 in D 2.76 in
Victorian Opal and Diamond Crown Tiara Haircomb Necklace, circa 1880s
Located in Idar-Oberstein, DE
Victorian Opal and Diamond Crown Haircomb Necklace, ca. 1880s A very unusual and stunning Victorian crown, set with fiery opal cabochons and old-mine cut diamonds, from the 1880s. T...
Diamond, Opal, Gold, Silver
GIA Certified 3.00CT Burma Ruby & Diamond Antique Style Platinum 3 Stone Ring
Located in Palm Beach, FL
A ruby weighing 3.00ct of Burmese origin, is the centerpiece for this gorgeous, platinum three-stone ring. The ruby is accompanied by a Gemological Institute of America certificate #...
Diamond, Ruby, Platinum
$5,449
W 0.22 in D 0.14 in L 0.27 in
Natural Unheated Red Mozambique Ruby Gemstone 1.31 carats with GIA Report
Located in Los Angeles, CA
Introducing a natural Mozambique Ruby weighing 1.31 carats, accompanied by a GIA Report for authenticity. The cushion-shaped gem, measuring 6.82 x 5.47 x 3.49 mm, features a Brillian...
Ruby
Late Victorian Opal and Diamond Tiara
Located in London, GB
A late Victorian opal and diamond tiara/necklace, consisting of seven knife-edge gold bars graduating from the centre, each set with two round cabochon-cut opals and an old-cut diamo...
Diamond, Opal, 18k Gold, Silver
$68,000Sale Price|20% Off
MOGOK Burma GRS Switzerland 4.57 Carat Oval Ruby Diamond Cocktail Platinum Ring
By Antinori Fine Jewels
Located in Chicago, IL
An exquisite natural untreated and unheated burmese ruby with a certification that states the origin. The side diamonds sum 1 carat of round brilliant cut diamonds and the ring has ...
Diamond, White Diamond, Ruby, Platinum
Pigeon's Blood Burmese Ruby and Diamond Necklace/Tiara, circa 1915
Located in London, GB
Pigeon's blood Burmese ruby and diamond necklace/tiara. Set to the centre with twenty six oval old cut natural unenhanced Pigeon's blood Burmese rubies in open back claw settings, ra...
Diamond, Ruby, Rose Gold, Platinum
Men's luxury green emerald ring , 3.25ct natural emerald, 1.85ct natural diamond
Located in Ramat Gan, IL
Introducing our exquisite Green Emerald Ring for men, a true testament to luxury and style. This magnificent piece features a captivating 3.25 carat natural green emerald, elegantly ...
Diamond, Emerald, 14k Gold
GIA Certified No Heat Burma Ruby Ring with Diamonds
Located in Miami, FL
The ring is Victorian, circa 1890. It presents an old cut oval ruby with very good crystal accompanied by GIA report #2193963124, stating the ruby is 1.42 carats, Burma origin, with ...
Diamond, White Diamond, Ruby, 18k Gold, Yellow Gold
Guild Certified 2.91 Carat Unheated Burmese Ruby
Located in Peshawar, PK
Natural Loose Ruby Weight: 2.91 Carat Dimension: 9.27 x 7.45 x 4.31 Mm Colour: Vivid Purplish Red Treatment: Natural Origin: Himalayan Mountain (Burma) Certificate: Guild Cert...
Ruby, Other
GIA Certified 1.58 Carat, Unheated, Burmese Ruby & Diamond Ring set in Platinum
Located in Tokyo, JP
A beautiful Ring set in Platinum featuring a GIA Certified 1.58 Carat Natural Burmese, Untreated (Unheated) Ruby and 0.62 Carat Diamonds. Rubies are referred to as "Ratnaraj" in Sans...
Diamond, Ruby, Platinum
$3,000
W 0.31 in D 0.26 in L 0.35 in
Unheated Certified Natural Loose Ruby Mozambique Mine 4.61 Carats
Located in Peshawar, PK
Faceted Ruby Weight: 4.61 Carat Dimension: 8.86 x 7.70 x 6.54 Mm Colour: Purplish Red Origin: Mozambique Treatment: Non Certificate: AGA Certificate Available Mozambique rubie...
Ruby
GIA Certified 2.17 Carat Unheated, African Ruby & Diamond Ring Set in Platinum
Located in Tokyo, JP
A beautiful ring set in Platinum featuring a GIA Certified 2.17 Carat Natural Untreated, Mozambique Ruby and 0.47 Carat Diamonds. Rubies are referred to as "Ratnaraj" in Sanskrit mea...
Diamond, Ruby, Platinum
$125,000
W 0.35 in D 0.28 in L 0.41 in
5 Ct Classic Burma Red Spinel – Rare Cushion-Cut Gemstone for Collectors
By Merkaba
Located in Beverly Hills, CA
Rare 5 Carat Classic Burma Red Spinel Cushion-Cut Gemstone: A Treasure for Collectors and a Romantic Gift By Merkaba Beverly Hills. Unveiling an extraordinary gemstone of exceptiona...
Spinel, Platinum, 18k Gold, Rose Gold, White Gold, Yellow Gold, Gold
$5,060
W 0.22 in D 0.13 in L 0.31 in
Natural Unheated Mozambique Ruby Gemstone 1.23 carats with GIA Report
Located in Los Angeles, CA
Discover the allure of a 1.23 carats Natural Unheated Mozambique Ruby, certified by GIA. Its oval shape, measuring 7.72 x 5.53 x 3.13 mm, is complemented by a brilliant/step cut, sho...
Ruby
1.63 Carat Natural Blue Sapphire Loose Gemstone Sri Lanka
By Emeralds Maravellous
Located in Brunswick, ME
1.63 Carat Natural Blue Sapphire Loose Gemstone Sri Lanka Main Stone: Natural sapphire Gemstone Creation: Natural Clarity: Slight inclusions Cut Grade: Good Gemstone Form: Cut Shape:...
Blue Sapphire
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.