Octagon Amethyst Ruby Diamond Art Deco Style Halo Set 14K White Gold Ring
By Unbranded
Located in Tysons, VA
A striking and intriguing jewel, indeed. This bold and colorful Art Deco style ring highlights a gorgeous gleaming emerald cut amethyst framed in eye-catching contrast by French cut ...
Amethyst, Diamond, Ruby, 14k Gold, White Gold
Art Deco Style Octagon Dark Pink Rhodolite & Ruby Diamond 18K White Gold Ring
By Unbranded
Located in Tysons, VA
The ring features an elegant form, a perfect balance of stone and metal. The long shape of the setting is classic, allowing the ring to be set with the finest of emerald cut juicy sc...
Diamond, Ruby, Rhodolite, 18k Gold, White Gold
Bordeaux Ruby Ring - 1.07ct Untreated Ruby (Swiss Certified)
Located in London, GB
The Bordeaux RUby Ring is molded in a classical, vintage design. The ring features an untreated, Swiss-certified 1.07 carat vivid red, pigeon blood ruby, set amongst a halo of dazzli...
Ruby, Platinum
Octagon Shape Blue Aquamarine & Ruby Halo Set Art Deco Style 14K White Gold Ring
By Unbranded
Located in Tysons, VA
Art Deco style aquamarine and ruby ring mounted. The central emerald cut aquamarine weighing approximately 1.4 carat surrounded by a French cut ruby border and shoulders. The ring wo...
Aquamarine, Ruby, 14k Gold, White Gold
Christian Dior Vintage Sapphire Emerald Ruby Octagon Ribbed Omega Gold Necklace
By Christian Dior
Located in Wokingham, England
Christian Dior Vintage 1980s Gripoix Sapphire Emerald Ruby Blue Navy Green Red Octagon Rectangle Crystals Omega Adjustable Ribbed Omega Choker Necklace, Gold Tone Very excellent con...
Gold Plate
Christian Dior Vintage 1980s Gripoix Ruby Black Crystals Octagon Clip Earrings
By Christian Dior
Located in Wokingham, England
Christian Dior Vintage 1980s Ruby Red Gripoix Black Enamel Crystals Octagon Rectangle Chunky Elegant Modenrist Clip Earrings, Gold Tone Very good condition.
Gold Plate
Unheated 1.54 carats Mozambique Ruby
Located in Khet Bang Rak, 10
Unheated 1.54 carats Mozambique octagonal square ruby, a perfect size for an engagement ring or a special pendant to be made.
Ruby
$5,500
2 Rubies 2.22 Cts
Located in Hong Kong, HK
Get ready to be enthralled with the bright charm of these magnificent rubies, each with a flaming hue that enchants the senses. These jewels, which weigh a combined 2.22 carats, tr...
Ruby
Ruby Diamond Illusion Ring
By Bn Green Star
Located in Hong Kong, HK
A radiant fusion of classic grandeur and modern craftsmanship, this ruby ring dazzles with a structured elegance that commands attention. The centerpiece is a masterfully set illusio...
Diamond, Ruby, 18k Gold
Yves Saint Laurent YSL Ruby Gripoix Crystal Green Red Bow Knot Octagon Brooch
By Yves Saint Laurent
Located in Wokingham, England
Yves Saint Laurent YSL Vintage Gripoix Ruby Octagon Rectangle Crystal Green Red Enamel Patchwork Knot Bow Tie Brooch, Gold Plated Very excellent condition, only one dark spot at bac...
Gold Plate
0.61 сt, Vivid red-pink unheated ruby
By True Gems
Located in บางรัก, TH
Vivid red-pink unheated ruby sku831 Weight: 0.61 ct Color: red-pink Size: 6.26 x 3.79 x 2.40 mm Origin: Mozambique Perfect octagon cut, GFCO certificate
Ruby
Ruby Engagement Ring with Invisible Set Rubies and Diamond in 14K White Gold
Located in Bangkok, TH
Rich ruby tones and crisp geometric lines define this sophisticated Ruby Engagement Ring, where invisible-set rubies surround a brilliant diamond center in a beautifully balanced com...
Diamond, Ruby, 14k Gold, White Gold
14 Karat Yellow Gold Ruby Half Eternity Band Stacking Ruby Ring
By VR Jewels
Located in New York, NY
Material - 14K Solid Yellow Gold Gemstone - Ruby Gemstone Weight - 2.2 ct Gemstone pcs - 7 Gemstone shape - Octagon Stone Size - 4 x 2.5 mm Gross Weight - 3.28 Grm Setting - Bezel se...
Ruby, Gold, 14k Gold, Yellow Gold
Natural 2.15 Ct Ruby Diamond Pendant Ruby Pendant in 18K Yellow Gold
By VR Jewels
Located in New York, NY
Estate natural ruby and diamond pendant in 18K Gold. It has a octagon cut ruby with diamonds that completes your look with a decent touch.
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
GIL Certified 0.77 Carat Ruby Ring
Located in บางรัก, TH
18kt white gold ruby ring with diamonds Gold colour & karat: White gold 18kt Weight: 3.953 grams Set with- Stone type: Ruby Shape: Octogon Carat: 0.77 (3 Pcs) Col...
Ruby, 18k Gold, White Gold
1.22 сts, Vivid red-pink unheated ruby
By True Gems
Located in บางรัก, TH
Vivid red-pink unheated ruby sku832 Weight: 1.22 ct Color: red-pink Size: 5.11x4.91x2.58 mm, 4.79x4.74x2.54 mm Origin: Mozambique Perfect cut, GFCO certificate
Ruby
Exceptional Untreated 2.15 carat Pigeon's Blood Ruby - Swiss Certified
Located in London, GB
This exceptional, untreated and stunningly beautiful 2.15 carat Pigeon's Blood ruby originates from Mozambique, one of the leading modern sources of fine quality sapphires. Certifi...
Ruby
Highly Exceptional Untreated 1.10carats Pigeon's Blood Ruby, Swiss Certified
Located in London, GB
This exceptional, untreated and stunningly beautiful 1.10 carats Pigeon's Blood Ruby originates from Mozambique, one of the leading modern sources of fine quality sapphires. Certif...
Ruby
Vintage Platinum GIA Vivid Pigeon Blood Red Burma Ruby & Diamond Solitaire Ring
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Ruby - Octagonal Step Cut - Prong Set - Vivid Pigeon Blood Red Color (NOTED ON GIA) - Burma - Heated - 1.03ct (exact) ** See Certification Details B...
Diamond, Ruby, Platinum
2.97 ctw Mid-Century Burmese Ruby & Diamond Platinum Three-Stone Ring
Located in Tysons, VA
Centering a 2.02 carat Burmese ruby, this elegant Mid-Century ring features a rectangular emerald-cut stone with vivid red color and fine transparency. Certified by AGL with traditio...
Diamond, Ruby, Platinum
Ruby Ring Studded in 18k Rose Gold
By GEM PLAZA
Located in New York, NY
Its an elegant ring studded in 18k gold with 4 pieces Mozambique natural ruby weight 1.46 carat & Diamond weight 0.02 carat , this entire ring studded in 18k gold weight 3.70 grams,...
Ruby, Rose Gold
Retro Period Citrine, Ruby & Diamond Bracelet
Located in Brisbane City, QLD
The fancy-link hollow gold bracelet has been crafted from 18 karat purity gold and centres on a four claw set octagonal step cut citrine. The citrine is flanked by two shoulders of s...
Citrine, Diamond, Ruby, Gold, 18k Gold, Yellow Gold
Platinum Earrings with Rubies, Diamonds & Baroque Pearls - Fei Liu
By Fei Liu
Located in Birmingham, .
- Metal: Platinum - HxW: 35.5 x 19mm - Rubies: 0.46ct, octagon step cut - Diamonds: 0.57ct, brilliant cut - Baroque Pearls: Approx 20 x 11mm each Fei Liu Fine Jewellery is an inde...
Diamond, White Diamond, Pearl, Ruby, Platinum
0.60 Carat Burmese Ruby and 0.66 Carat Diamond Platinum Trilogy Ring Circa 1915
Located in Jesmond, Newcastle Upon Tyne
The pierced decorated setting displays a feature four-claw set 0.60ct octagonal cut Burmese ruby. The ruby is flanked on either side by a claw set 0.34ct and a 0.32ct transitional m...
Diamond, Ruby, Platinum
Art Deco Burmese Ruby and Diamond Ring In Platinum, GIA Certified.
Located in New York, NY
This captivating ring centers on a vibrant, natural unheated Burmese ruby of exceptional color and clarity weighing approximately 1.50 carats , the octagonal step cut ruby radiates a...
Diamond, Ruby, Platinum
GRA Certified 1.16 Carat Natural Vivid Red Ruby Diamond Ring
Located in บางรัก, TH
18kt white gold ring with diamonds Gold colour & karat: White gold 18kt Weight: 3.250 grams Set with- Stone type: Ruby Shape: Octagon Carat: 1.16 ct Colour: Vivid...
Diamond, Ruby, 18k Gold, White Gold
GIT Certified 0.67 Carat Natural Red Ruby Diamond Ring
Located in บางรัก, TH
18kt white gold ring with diamonds Gold colour & karat: White gold 18kt Weight: 3.313 grams Set with- Stone type: Ruby Shape: Square Carat: 0.67 ct Colour: Red ...
Diamond, Ruby, 18k Gold, White Gold
$3,840Sale Price|20% Off
2.19 Carat Ruby & Diamond Ring Studded in 18k Gold
By GEM PLAZA
Located in New York, NY
This is an elegant ruby & diamond ring studded in 18K white gold, features 1 piece of octagon shaped ruby weight 2.19 carat, with 24 pieces of diamonds weight 1.05 carat, this entire...
Diamond, Ruby, 18k Gold
11.10 Carat Natural Unheated Rubies & Diamonds Tennis Necklace Made in Platinum
Located in Tokyo, JP
A beautiful necklace set in platinum featuring a total of 11.10 Carats of untreated Rubies and 5.43 Carat Diamonds. Rubies are referred to as "Ratnaraj" in Sanskrit meaning the King ...
Diamond, Ruby, Platinum
New Platinum 1.68ctw GIA Rectangular Cut Ruby & Baguette Diamond Engagement Ring
Located in Montclair, NJ
Comes with the original GIA certification for the ruby. Stock Number: MK-910216056-23121610-EY --Certification Details:-- Laboratory: GIA Report Type: Ruby Origin Report Report Num...
Diamond, Ruby, Platinum
$5,520Sale Price / item|20% Off
Ruby and Diamond Bracelet in 14 Karat Yellow Gold
By VR Jewels
Located in New York, NY
It measures 7 inches long in length. Ruby improves mental strength. Designed with octagon, square cut ruby and diamond set in solid gold settings to make you stand out on any occasi...
Diamond, Ruby, 14k Gold, Yellow Gold
18ct Gold 1920s Art Deco Octagonal Cut Aquamarine & Diamond Cocktail Ring
Located in Brighton, GB
This exquisite piece showcases a striking octagonal cut natural aquamarine at its centre, drawing attention with its vibrant hues.
Aquamarine, Diamond, Gold, 18k Gold
$4,360Sale Price|20% Off
3 Stone Mozambique Ruby Cluster Wedding Ring 18k Gold
By GEM PLAZA
Located in New York, NY
3 Stone Mozambique Ruby Cluster Wedding Ring 18k Gold Product Details →™ Jewelry Type - Rings →™ Jewelry Main Material - 18K Gold, 18K Gold Stone Details →™ Primary Stone Type: Mo...
Diamond, Ruby, 18k Gold
$13,475Sale Price|20% Off
Red Ruby, Diamond and Enamel Drop Earrings
By Salavetti
Located in San Francisco, CA
This striking pair of earrings by Italian designer Salavetti are a unique find! The 18k white gold drop earrings feature two hexagonal cut vibrant red rubies, together weighing 2.96 ...
Diamond, Onyx, Ruby, 18k Gold, Enamel
Vintage Ruby Diamond 18K Yellow Gold Geometric Cocktail Ring 1980s, Italian work
Located in Monaco, MC
A bold architectural vision realized in gold and gemstone, this extraordinary Italian cocktail ring transforms the geometry of nature into wearable sculpture. Born from the tradition...
Diamond, Ruby, Yellow Gold
GIA Certified 1.14 Carat Natural Burmese Ruby and Diamond Toi Et Moi Ring
Located in Tokyo, JP
A beautiful Ring made in Platinum featuring a GIA Certified 1.14 Carat Natural Burmese Ruby and 1.02 Carat D, Si-2 Diamond. Rubies are referred to as "Ratnaraj" in Sanskrit meaning t...
Diamond, Ruby, Platinum
$4,182Sale Price / item|50% Off
Silvorra Classic 40.41CT Natural Ruby Line Necklace for Women in 925 Silver
Located in New York, NY
PRODUCT DETAILS : Metal - 925 Sterling Silver Gemstone - Ruby Gemstone Size - 4X6 mm Gemstone Pieces - 54 Pieces Gemstone Shape - Octagon Gemstone Weight - 40.41cts Gross Weigh...
Ruby, Silver, Sterling Silver
8.34 ctw Victorian Style Diamond & Emerald-Cut Ruby Ring 18K Yellow Gold
Located in Tysons, VA
Set in 18K yellow gold and accented by diamonds totaling 0.29 carats, the design highlights the ruby’s clean octagonal lines and natural beauty.
Diamond, Ruby, 18k Gold, Yellow Gold
Art Deco Certified Unheated Burmese Ruby Diamond Gold Ring
Located in Napoli, NA
Art Deco three stone 18k Gold ring set with a round cut unheated ruby, weighing 1.14 carats and 2 old cut octagonal diamonds with a total weight of approx. 1.20 carats H/I color VS/S...
Diamond, Ruby, Gold, 18k Gold, White Gold
$2,890Sale Price / item|20% Off
Designer Diamond Ruby Cross Pendant in 18K Yellow Gold Settings
By VR Jewels
Located in New York, NY
Designer ruby and diamond cross pendant in 18K Gold. It has a octagon cut ruby studded with diamonds that completes your look with a decent touch.
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
$1,540 / item
Ruby and Diamond Cocktail Ring in 18K White Gold
By VR Jewels
Located in New York, NY
Designed with octagon shaped ruby in center and halo of Clustered diamonds that makes it a perfect fit to wear it on your wedding or style it with any of your basic outfit to give it...
Diamond, Ruby, White Gold, 18k Gold, Gold
Vintage 1.50 Ct Red Ruby 1.60 Ct F VVS Diamond 18 Kt
Located in Napoli, IT
This very charming vintage ring is 1970 circa Skilfully hand crafted as unique of solid 18 Kt gold Marvelous chic design with octagonal head set with Ruby and Diamonds An exceptional...
Diamond, Ruby, 18k Gold
Natural Ruby Diamond Drop Earrings in 18k Solid Yellow Gold
By VR Jewels
Located in New York, NY
These earrings create a sparkling, luxurious look featuring octagon cut ruby. Ruby improves mental strength.
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
$2,508Sale Price / item|20% Off
VR Jewels 2.96ct Ruby Diamond Halo Pendant in 18K Yellow Gold
By VR Jewels
Located in New York, NY
This elegant pendant features a 2.96 carat octagon-cut ruby set in 18K yellow gold. The ruby measuring 10 x 8 mm in a classic prong setting.
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
Timeless Ring In 18k White Gold and Red Rubies
By Vitale 1913
Located in Monte-Carlo, MC
TIMELESS Ring in white gold 18Kt 2.80 gr with Red Rubies in total 0.58 ct and Diamond G color VS clarity 0.10 ct. In 2023, Vitale 1913 celebrates its 110 years! The house of fine j...
Diamond, White Diamond, Ruby, 18k Gold, White Gold
$1,176Sale Price / set|20% Off
Modern 18K White Gold Natural 1.17 Ct Ruby and Diamond Halo Stud Earrings
By VR Jewels
Located in New York, NY
These exquisite stud earrings feature two octagon cut natural rubies with a combined weight of 1.17 carats, beautifully set in rich 18K white gold.
Diamond, Ruby, White Gold
$232Sale Price / item|50% Off
Dainty Ruby Diamond Everyday Pendant Necklace in Sterling Silver Gift for Her
Located in New York, NY
Dainty Ruby Diamond Everyday Pendant Necklace in sterling silver studded with octagon cut ruby and round cut diamonds.
Diamond, Ruby, Silver, Sterling Silver
$1,970Sale Price / item|20% Off
18K Yellow Gold Natural Ruby Pendant Necklace with Halo of Diamonds
By VR Jewels
Located in New York, NY
Natural Ruby Pendant Necklace with Halo of Diamonds in 18K Gold studded with octagon cut ruby.
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
GIA Certified 2.18 Carat Siam 'Thailand' Ruby and Diamond Set in Platinum
Located in Tokyo, JP
A beautiful Vintage Estate ring set in Platinum featuring a GIA Certified 2.18 Carat Natural Siam (Thailand) Ruby and 1.96 Carat Diamonds. Rubies are referred to as "Ratnaraj" in San...
Diamond, Ruby, Platinum
$11,760Sale Price / item|20% Off
22.68 Carat Natural Ruby Engagement Choker Necklace in 18k Solid Yellow Gold
By VR Jewels
Located in New York, NY
22.68 Carat Natural Ruby Engagement Choker Necklace in 18K Gold studded with octagon cut ruby of 22.68 carats.
Ruby, Gold, 18k Gold, Yellow Gold
From $4,899Sale Price / item|20% Off
2.52 TCW Ruby Diamond Three Stone Engagement Ring 14k White Gold
By Spectrum Jewels
Located in Diera, Dubai
2.52 TCW Ruby Diamond Three Stone Engagement Ring 14k White Gold features octagon cut ruby in center with diamond on side making a three stone style engagement ring.
Diamond, Ruby, Gold, 14k Gold, White Gold
$840Sale Price|20% Off
Natural Mozambique Red Ruby & Diamond Curb Chain Bracelet in 14K Yellow Gold
By VR Jewels
Located in New York, NY
PRODUCT DETAILS :- Material - 14K Solid Yellow Gold Gemstone - Ruby Gemstone Weight - 0.45 cts Gemstone pcs - 1 Gemstone shape - Octagon Gemstone size - 5.8X4.1 mm Diamond Weight ...
Diamond, Ruby, Gold, 14k Gold, Yellow Gold
$207Sale Price / item|50% Off
Bold Red Ruby Gemstone Classic Four Prong Unisex Silver Pendant Gift for Him
Located in New York, NY
PRODUCT DETAILS: Metal - 925 Silver Gemstone name - Ruby Gemstone shape - Octagon Gemstone size - 7 x 5 mm Gemstone pcs - 1 Gemstone weight - 1.25 cts Gross Weight - 1.02 grams We...
Ruby, Silver, Sterling Silver
$1,720Sale Price / item|20% Off
14k Gold Ruby Diamond Halo Stud Earrings Timeless Jewelry for Her
By VR Jewels
Located in New York, NY
These earrings create a sparkling, luxurious look featuring oval cut ruby. Ruby improves mental strength. Designed with octagon cut ruby set in stud in solid gold.
Diamond, Ruby, Gold, 14k Gold, Yellow Gold
Ruby & Pave Diamond Art Deco Inspired Style Statement 14K White Gold Ring
By Unbranded
Located in Tysons, VA
(approx. total weight) Size: US 3-8 (resizable) Center Gemstones Type: Ruby Shape: Octagon Size: 6 x 5 mm. Number: 1 Weight: 1.00 Carat (approx. total weight) Accent Gemstones Type...
Diamond, Ruby, 14k Gold, White Gold
18K Gold & Platinum 2.15ctw GIA Burma VIVID RED Ruby & Emerald Cut Diamond Ring
Located in Montclair, NJ
Comes w/ original GIA certification for the ruby stone. Stock Number: EG-790371450-22091016-EY --Certification Details:-- Laboratory: GIA Report Number: 6227583351 Shape: Octagonal ...
Diamond, Ruby, 18k Gold, Platinum
$3,370Sale Price|20% Off
Genuine 18k Solid Yellow Gold Ruby Striped Round Medallion Charm Pendant
By VR Jewels
Located in New York, NY
Ruby Medallion Charm Pendant in 18K Gold studded with octagon cut ruby.
Ruby, Gold, 18k Gold, Yellow Gold
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.