3.00 Ct Ruby Oval Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as ...
Ruby
1.03 Ct Ruby Round Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as ...
Ruby
1.00 Ct Ruby Round Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as ...
Ruby
1.02 Ct Ruby Round Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as ...
Ruby
0.99 Ct Ruby Round Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as ...
Ruby
2.45 Ct Ruby Pear Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as ...
Ruby
1.50 Ct Ruby Oval Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. All our gemstones are 100% natural & genuine. Certification can be provided on req...
Ruby
1.57 Ct Ruby Oval Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. All our gemstones are 100% natural & genuine. Certification can be provided on req...
Ruby
1.76 Ct Ruby Octagon Cut Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as ...
Ruby
1.79 Ct Ruby Octagon Cut Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as ...
Ruby
1.59 Ct Ruby Octagon Cut Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as ...
Ruby
1.52 Ct Ruby Octagon Cut Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as ...
Ruby
1.66 Ct Ruby Octagon Cut Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as ...
Ruby
1.28 Ct Ruby Octagon Cut Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as ...
Ruby
4.04 Ct Ruby Octagon Cut Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as a loose ...
Ruby
3.30 Ct Ruby Octagon Cut Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. All our gemstones are 100% natural & genuine. Certification can be provided on req...
Ruby
1.27 Ct Ruby Octagon Cut Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. All our gemstones are 100% natural & genuine. Certification can be provided on req...
Ruby
$320Sale Price|20% Off
New 5.78 Carat Red Ruby Cabochon & Oval Cut Ruby 14k Y Gold PL Sterling Earrings
Located in Eagan, MN
There is a large cabochon ruby in each earring that measures 10 x 8 mm and they are surrounded by diamond cut rubies in a scalloped design.
Ruby, Gold, 14k Gold, Yellow Gold, Silver, Sterling Silver
New 6.09 Carat Red Ruby Cabochon & Oval Cut Ruby 14k Y Gold PL Sterling Earrings
Located in Eagan, MN
These earrings are so cool. They make their own statement. Eash earring has a large cabochon ruby measures 10 x 8 mm and they are surrounded by a row of round cut 1.5 mm garnet st...
Ruby, Garnet, Gold, 14k Gold, Yellow Gold, Silver, Sterling Silver
Natural Unheated Purplish Red Ruby Gemstone 1.17 carats with GIA Report
Located in Los Angeles, CA
Treatment: Unheated, preserving the ruby’s natural beauty. Origin: Mined in Madagascar, known for producing some of the world's most vibrant rubies.
Ruby
$610Sale Price / set|30% Off
Pinkish Red Natural Ruby Pear Cut 2.02 Carat Jewelry Size Loose Gemstones Set
Located in Peshawar, PK
. 💎 GEMSTONE TYPE: Ruby ⚖️ WEIGHT: 2.02 Carat 🪚 SHAPE & CUT: Pear Cut 📏 SIZE (MM): 1.27 Ct (8.04 x 5.47 x 3.24) 0.75 Ct (5.55 x 5.91 x 2.66) 🌈 COLOR: Pinkish Red 🔎 CLARITY...
Ruby
$520Sale Price|20% Off
GCI Certified 1.36 Carat Natural Ruby Octagon Shape Loose Gemstone
Located in Peshawar, PK
Loose Ruby Weight: 1.36 Carat Dimension: 6.17 x 5.70 x 3.52 Mm Colour: Pinkish Red Treatment: Natural Certificate: GCI Lab Certificate Available Shape : Octagon A loose rub...
Ruby
Moonstone and Ruby natural gemstone Ring, 14 Karat White Gold, 7US, Certified
By GRALJEWELRY
Located in Dublin, D
Moonstone have own certificate GFCO Main Stone: Moonstone Main Stone Creation: Natural Main Stone Color: White Main Stone Origin: Madagascar Main stone size: 7.40x8.14x6.99mm Ring Si...
Moonstone, Ruby, 14k Gold, White Gold
$1,080,000Sale Price|20% Off
AWARD WINING 20 Carat Ruby Diamond Platinum Ring
By Antinori Fine Jewels
Located in Chicago, IL
A truly important and exceptional gemstone ring centered by a 20 carat natural cushion-cut ruby of Madagascan origin, accompanied by a GRS Swisslab Platinum Award Appendix This extr...
Diamond, White Diamond, Ruby, 18k Gold, Yellow Gold, Platinum
Vintage 18K Yellow Gold Ruby and Diamond Ring with AGL Certificate
Located in Great Neck Plaza, NY
Accompanied by an AGL Prestige Gemstone Report, identifying the center stone as natural corundum, ruby variety, with Madagascar origin. The report notes heat enhancement with minor i...
Diamond, Ruby, 18k Gold, Yellow Gold
8.2Ct Star Ruby Ring with Natural Diamonds: Solid 14K Gold, Marquise Cut 16x7mm
Located in Columbus, OH
This Madagascar star ruby shows the prized asterism gliding across its surface.
Diamond, Star Ruby, Gold, 14k Gold, Yellow Gold
$2,406Sale Price|20% Off
12.5Ct Star Ruby Cabochon Ring with Earth-Mined Diamond Accents: Solid 14K Gold
Located in Columbus, OH
This large Madagascar star ruby shows the prized asterism that glides across the surface as the stone moves.
Diamond, Star Ruby, 14k Gold, Yellow Gold
$3,000Sale Price|20% Off
8.3Ct Star Ruby Ring with Earth-Mined Diamond Accents: Solid 14K Gold, 12x10mm
Located in Columbus, OH
Fissure-filled to enhance clarity, as is common for ruby. A bold, mesmerising statement ring. "A bold 8.36ct Madagascar star ruby in 14K gold."
Star Ruby, Diamond, Yellow Gold, 14k Gold, Gold
$1,747Sale Price|20% Off
7.8Ct Star Ruby Cabochon Ring with Earth-Mined Diamond Accents: Solid 14K Gold
Located in Columbus, OH
This Madagascar star ruby shows the prized asterism that glides across the surface as the stone moves.
Diamond, Star Ruby, Gold, 14k Gold, Yellow Gold
Exquisite 4.32Carat Red Rubies and Diamond 18k Solid White Gold Stud Earrings
Located in AMSTERDAM, NL
With their growing reputation and unique geological origins, rubies from Madagascar are making a significant mark in the world of fine gemstones.
Diamond, Ruby, 18k Gold, White Gold
$1,448Sale Price|20% Off
Estate 9cts Ruby Dangle Earrings with Natural Diamond Accents in 14K White Gold
Located in Columbus, OH
Striking 14k gold Estate earrings featuring vivid oval rubies from Madagascar, totaling 9cts. Each 10x8.5mm ruby is beautifully framed by 160 sparkling diamonds (0.40cttw), adding br...
Diamond, Ruby, Gold, 14k Gold, White Gold
"Octopus" Ring in Textured 14K Gold with Star Ruby and Parti & Star Sapphires
By Eytan Brandes
Located in Sherman Oaks, CA
The magenta-colored stone is a 2.94 carat star ruby from Madagascar. In the right light, it shows a distinct six-pointed star, but in every other light, it still has a beautiful lus...
Ruby, Sapphire, Blue Sapphire, Star Sapphire, Star Ruby, Gold, 14k Gold,...
New Platinum & 14K Rose Gold 3.07ctw GIA Round Ruby Diamond Halo Cocktail Ring
Located in Montclair, NJ
Comes w/ original GIA certification for the ruby. Stock Number: MK-430420001-23110315-EY --Certification Details:-- Laboratory: GIA Report Number: 2231058469 Shape: Round Cutting St...
Diamond, Ruby, Rose Gold, Platinum
Shreve, Crump & Low 9.13 Carat Red Cushion Cut Ruby and Diamond 3-Stone Ring
By Shreve, Crump & Low
Located in Boston, MA
The 9.13 carat ruby is from Madagascar, and is accompanied by an GIA certification no. 5181080265.
Diamond, Ruby, 18k Gold, Yellow Gold, Platinum
Yellow Gold Contemporary Ring with GRS Certified Royal Blue and Pink Sapphires
By Polya Medvedeva Jewellery
Located in Berlin, DE
The gems are: Oval cut 2,65 carats natural unheated untreated vivid blue (royal blue) sapphire, GRS (Swiss Lab) certified, 8,58x6,93x5,27 mm, Madagascar. Pear cut vivid natural ruby,...
Pink Sapphire, Ruby, Blue Sapphire, Sapphire, Yellow Gold, White Gold, R...
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.