Tiffany & Co. Vintage Ruby Diamond Dial Manual Wind Watch Collector Wristwatch
Located in University Place, WA
A distinctive vintage Tiffany & Co. wristwatch featuring a beautifully composed square dial set with ruby and diamond hour markers, capturing the refined elegance of mid century ...
Diamond, Ruby, Stainless Steel
Cartier 14K Yellow Gold Ruby and Diamond Lipstick Case
By Cartier
Located in Broomall, PA
Cartier 14K Yellow Gold 0.5ct Ruby and 0.05ct Diamond Lipstick Case A refined and collectible Cartier lipstick case crafted in rich 14 karat yell...
Diamond, Ruby, 14k Gold, Yellow Gold
$15,190Sale Price|30% Off
GRS Certified 2.53 Carat Mozambique Ruby Diamond Ring in 18K Gold Vivid Red
Located in Hong Kong, HK
Introducing our stunning Mozambique Ruby and Diamond Ring, a masterpiece of contemporary design and exquisite craftsmanship. At the heart of this ring lies a captivating 2.53 carat M...
Diamond, Ruby, 18k Gold, White Gold
Necklace -GIA 18.24 Ct Pink Sapphire Pear Drop 150 CTW Rubies & Diamonds
Located in Miami, FL
Hand-crafted in a substantial 64.6-gram framework of solid 18K white gold, this magnificent 17-inch statement collar weaves together an incredible treasure trove of the world's most ...
Diamond, White Diamond, Ruby, Pink Sapphire, Gold, 18k Gold, White Gold
Zolotas Cabochon Ruby 22 Karat Yellow Gold Hammered Finish Gypsy Ring
By Zolotas
Located in Boca Raton, FL
A bold and richly crafted statement ring, this Zolotas cabochon ruby gypsy ring is fashioned in luxurious 22 karat yellow gold with a hand-hammered finish that enhances its artisanal...
Ruby, Gold, 22k Gold, Yellow Gold
Antique Butterfly Brooch Pin 2ct Ruby 1.5 ct Diamond 10K Gold Silver / 3.9gr.
Located in SE
Old European Butterfly brooch dating from ca. 18th century with 2 natural Rubies and 29 sparkling rose cut Diamonds set in Silver , 10K Rose and Green Gold. One Ruby is of old table...
Diamond, Ruby, 10k Gold, Silver
$18,850
Egyptian Revival Pendant
Located in New Orleans, LA
This bold necklace features a colorful, intricately crafted Egyptian Revival pendant. The design artfully combines turquoise, rubies, diamonds and enamel in a stunning representation...
Diamond, Ruby, Turquoise, 18k Gold, Enamel
Bochic “Orient” Ruby & South Sea Pearl 2 Gem Ring Set 18K & Silver
By Bochic
Located in New York, NY
Bochic “Orient” Ruby & South Sea Pearl 2 Gem Ring Set 18K & Silver Natural Ruby - 13 Carat South Sea Pearl This Ring is from the "Orient" traveling collection are the epitome of...
South Sea Pearl, Ruby, 18k Gold, Silver
Van Cleef & Arpels Platinum Diamond and Ruby Dome Ring
Located in New York, NY
A striking Van Cleef & Arpels platinum dome ring from the 1960s, showcasing the Maison's exceptional ability to combine color, geometry, and brilliance in a bold yet elegant design. ...
Diamond, Ruby, Platinum
1.51 Carat Oval Cut Natural Ruby Diamond 14 Karat White Gold Cluster Ring
By DGI
Located in Los Angeles, CA
1.51 Carat Oval Cut Natural Ruby Diamond 14 Karat White Gold Cluster Ring Metal: 14 Karat White Gold Primary Stones: Natural Ruby Accent Stones: Natural Diamonds Total Carat Wei...
Diamond, Ruby, White Gold, 14k Gold
$3,962Sale Price|50% Off
AIGS 18k White Gold 1.26ct Oval Thai Ruby & 0.74ct Diamond Cocktail Band Ring
Located in เกาะสมุย, TH
This wide‑band cocktail ring centers on a 1.26‑carat natural Thai ruby, certified by the Asian Institute of Gemological Sciences (AIGS). The ruby displays a vivid pinkish‑red hue—an ...
Diamond, 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
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
0.53 сt, Vivid red-pink unheated ruby
By True Gems
Located in บางรัก, TH
Vivid red-pink unheated ruby sku830 Weight: 0.53 ct Color: pink Size: 5.18 x 4.36 x 2.55 mm Origin: Mozambique Perfect cut, GFCO certificate
Ruby
0.66 сt, Vivid red-pink unheated oval ruby
By True Gems
Located in บางรัก, TH
Vivid red-pink unheated oval ruby sku829 Weight: 0.66 ct Color: pink Size: 6.43 x 4.99 x 2.55 mm Origin: Mozambique Perfect cut, GFCO certificate
Ruby
Attracting Ruby, Diamond Earring In 18 Kt Yellow Gold
By GEM PLAZA
Located in New York, NY
EARRING DISCRIPTION Earring in 18 kt gold studded with Ruby, Diamond . Accessorize your look with this Ruby, Diamond Earring. This stunning piece of jewelry instantly elevates a casu...
Diamond, Ruby, 18k Gold, Yellow Gold
$1,378Sale Price|35% Off
Bochic “Orient” Vintage Ruby, Emerald, Sapphire & Diamond Ring Set In 18K & Silv
By Bochic
Located in New York, NY
Bochic “Orient” Vintage Natural Ruby, Emerald, Sapphire & Diamond Ring Set In 18K & Silver Natural Oval Shape Center Ruby 12.00 Carat Natural Emeralds 2.00 Carat Natural ...
Diamond, Emerald, Ruby, Sapphire, 18k Gold, Silver
Natural Ruby Eternity Band Ring 2.86 Carats Gold Plated Silver
Located in Bonita Springs, FL
Comes with Gemological Appraisal by GIA GG/AJP All Gemstones are Natural in Origin Bkk Ruby: 2.86 Carats Metal: Gold Plated Sterling Silver Ring Size: 7 US Custom sizing available up...
Ruby, Gold Plate, Silver, Sterling Silver
Victorian Old Mine Cut Diamond Starburst Ring, Celestial, 1899, Size 4.25, 18K
Located in Upland, CA
About This Ring: Add a touch of enchantment to your collection with our Antique Celestial Ring. This stunning piece boasts a rare old mine cut ...
Diamond, Ruby, 18k Gold
2.78 Carat Natural Ruby Diamond 14 Karat White Yellow Gold Engagement Ring
By Roshe Jewels
Located in Los Angeles, CA
2.78 Carat Natural Ruby Diamond 14 Karat White Yellow Gold Engagement Ring Metal: 14 Karat White & Yellow Gold Primary Stones: Natural Ruby Accent Stones: Natural Diamonds Total ...
Diamond, Ruby, 14k Gold, White Gold, Yellow Gold
Van Cleef & Arpels Paris Yorkie Brooch
Located in New York, NY
Dating from the 1960s, created by Van Cleef & Arpels Paris and the workshops of Péry et Fils, this Yorkshire terrier clip brooch is composed of 18K gold. diamonds and rubies. With fl...
Diamond, Ruby
Turquoise, Rubies, Diamonds, Rose Gold and Silver Ring.
Located in Napoli, Campania
Beautiful ring in 9 kt rose gold and silver structure mounted with two central flowers of turquoise paste surrounded by two flowers of rubies and diamonds. This elegant object combin...
Diamond, Ruby, Turquoise, 9k Gold, Rose Gold, Silver
$638Sale Price|49% Off
18K White Gold 0.59ct Oval Clean Red Ruby & 0.16ct Diamond Ring
Located in เกาะสมุย, TH
This wonderful engagement ring boasts a stunning bright red oval cut ruby. The stunning oval cut ruby is refractive which is set in the middle of brilliant round cut diamonds of good...
Diamond, Ruby, 18k Gold, White Gold
$177Sale Price / set|50% Off
Lotus Inspired Ruby and Diamond Stud Earrings for Valentine's Day Gift in Silver
Located in New York, NY
This Lotus Inspired Ruby and Diamond Stud Earrings in sterling silver to make a statement with your look. You shall need stud earrings to make a statement with your look. These earri...
Diamond, Ruby, Silver, Sterling Silver
Antique Ruby, Bloodstone, Carnelian, Moss Agate 14K Yellow Gold Snake Bracelet
Located in New York, NY
Fine antique ruby, bloodstone, carnelian, agate 14K yellow gold snake bracelet 19th Century This exquisite snake bracelet features scales of striking, exotic agates- moss, banded, bl...
Agate, Carnelian, Ruby, 14k Gold, Yellow Gold
Art Deco Style Engraved Burma Jade Enamel Ruby Gold Diamonds Dangle Earrings
Located in Bangkok, TH
In these classic Art Deco Style earrings the tops are 2 Ruby Oval cabs ,middle parts are composed of 2 white gold elements with 10 round full cut diamonds and Black Enamel ,in the bo...
Diamond, Jade, Ruby, Gold, 14k Gold, Enamel
$1,296Sale Price|20% Off
Bochic “Capri” Vintage Ruby & Purple Amethyst Earrings Set in 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Cascading Ruby & Purple Amethyst Earrings Set In 18K Gold & Silver Natural Red Ruby Cabochons - 30.28 Carats Natural Purple Amethyst - 16.74 Carats ...
Amethyst, Ruby, Topaz, Silver, 18k Gold
Marina J. Draped Pearl Princess Necklace with Pink Sapphire & Solid 14k Gold
By Marina J.
Located in Los Angeles, CA
A gorgeous "Princess" Necklace by Marina J. Inspired by romantic old world jewelry, this Draped Necklace is made entirely of natural Pearls Graduating in size, Pink Sapphires Briole...
Pearl, Ruby, Pink Sapphire, Gold, 14k Gold, Yellow Gold
Large Augis French Plus Qu’Hier Ruby Diamond 18K Yellow Gold Love Charm Pendant
By A. Augis
Located in London, GB
A French 18 karat (18K) yellow gold, diamond and ruby love charm pendant with a rebus spelling out "Plus qu'hier, moins que demain" ("More than yesterday, less than tomorrow") - a li...
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
Retro Art Deco Cuff Bracelet in 14Karat Gold w/ Citrine, Rubies, and Diamonds
By Mouboussin
Located in New York, NY
This striking and exquisitely made Retro Art Deco Cuff Bracelet in 14 Karat Gold W/ Citrine, Rubies, and Diamonds is designed and crafted in the United States during the Retro Art De...
Citrine, Diamond, Ruby, Gold
$962Sale Price / item|44% Off
Oval ruby 14k gold.
Located in Istanbul, TR
Ruby ring with halo. Oval ruby 14k gold. Ruby engagement ring. July birthstone ring. Classic ruby ring. Genuine ruby ring By Daizy Jewellery. Metal stamp: 14k Gold Weight: 2-2.3 gr ...
Ruby, 14k Gold
Bochic “Capri” Vintage Ruby & Multi Sapphire Necklace Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Classic Italian Ruby & Multi Fanct Sapphire Necklace Set In 18K Gold & Silver Chocker Necklace, Multi natural gem necklace Natural Red Pink Color Rubies - ...
Ruby, Sapphire, Blue Sapphire, Yellow Sapphire, Green Sapphire, 18k Gold...
4.54 Carats Total Ruby & Diamond Dangle Earrings in 18k Yellow Gold
Located in Los Angeles, CA
These exquisite dangle earrings feature a total of 4.54 carats of exceptionally fine rubies and brilliant natural white diamonds set in 18k yellow gold. The four oval rubies and two ...
Diamond, Ruby, White Diamond, Gold, 18k Gold, Yellow Gold
$3,000Sale Price|20% Off
Bochic “Capri” Ruby, Amethyst & Fancy Color Gem Necklace Set in 18K & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Ruby, Amethyst & Fancy Color Gem Necklace Set in 18K & Silver Elegant and Classic Italian style Natural Red Ruby - 10 Carats Natural Yellow, Green Quartz- 28 Carats Natural Amethyst - 7 carats...
Amethyst, Peridot, Quartz, Ruby, Blue Topaz, 18k Gold, Gold Plate, Silver
Art Deco Platinum Eternity Band Ring with 2.00ct Burmese Rubies
Located in Brunswick, ME
This one-of-a-kind eternity band Art Deco style is a celebration of rare color and exceptional design. At its heart are nine perfectly matched marquise-cut Burmese rubies, vibrant re...
Ruby, Platinum
$2,737Sale Price|25% Off
GIA Certified Natural Burma Ruby 3.59 Carats No Heat Carved Double Cabochon Gem
By OGI Ltd
Located in New York, NY
An exceptional GIA Certified Natural Ruby originating from the legendary mines of Burma (Myanmar), this rare 3.59 carat loose gemstone showcases the rich character and collectible ap...
Ruby
c1992 Cartier Ellipse Ruby Band Sz 6.25 Ring EU 53 18k Gold Signed Jewelry
By Cartier
Located in Torrance, CA
Vintage Cartier ruby 'Ellipse' ring crafted in 18k yellow gold (circa 1992). Oval faceted ruby measures 5mm x 4mm (note: small chip to the edge of the ruby - visible under a 10x l...
Ruby, Gold, 18k Gold, Yellow Gold
$957Sale Price / item|44% Off
14k Gold Hummingbird Earings Studs with Rubies, Bird Stud Earrings with Gems
Located in Istanbul, TR
Hummingbird Stud Earrings with colored gemstone. Bird earrings. Pear ruby earrings. Hummingbird earrings. Red bird earrings. Tropic bird earrings. We also have matching design penda...
Ruby, 14k Gold
Bochic “Capri” Vintage Emerald, Diamond & Ruby Cocktail Ring 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Emerald, Diamond & Ruby Cocktail Ring 18K Gold & Silver Center Natural Emerald — 6 Carats • Origin: Zambia • Emerald • Saturated Wine luminous, glow...
Diamond, Emerald, Ruby, 18k Gold, Silver
$599Sale Price|25% Off
0.40 Carat Burma Ruby Bezel Set 14K Yellow Gold Stud Earrings
By OGI Ltd
Located in New York, NY
Introducing our Pair Round Burma Ruby 0.40 Carat Bezel Set 14 Karat Yellow Gold 0.15 Inch Stud Earrings – a timeless and elegant addition to your jewelry collection. Experience the allure of natural beauty and exquisite craftsmanship with our Pair Round Burma Ruby Stud...
Ruby, Yellow Gold, 14k Gold, Gold
Antique Art Deco Ring Platinum Diamond Natural Ruby
Located in Munich, Bavaria
This elegant ruby and diamond ring is mounted in a beautifully chiselled and engraved setting typical for the period between 1910 and 1920. The platinum ring is decorated with foliag...
Ruby, Diamond, Platinum
Bochic “Orient” Vintage Multi Fancy Sapphire & Ruby Brooch - 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Orient” Vintage Multi Fancy Sapphire & Ruby Brooch Set In 18K Gold & Silver Natural Ruby - 14 carat Natural Multi Color Sapphires from Sri Lanka - 4 carat Can be worn as a...
Ruby, Sapphire, Blue Sapphire, Pink Sapphire, Yellow Sapphire, 18k Gold,...
C1880 9K Double Headed Snake Ring with Ruby Eyes
Located in Baltimore, MD
Chunky 9K antique quadruple banded Victorian snake ring hallmarked for Birmingham in the year 1918. The snake has a friendly smile and sweet derpy face and deep pink ruby eyes. Sna...
Ruby, 10k Gold
Bochic “Capri” Vintage Ruby & White Topaz Necklace Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Ruby & White Topaz Necklace Set In 18K Gold & Silver Natural Red & Pink Rubies – 22 Carats Natural White Topaz – 19 Carats Set in 18K Gold & 950 Silver 1...
Topaz, Ruby, Silver, 18k Gold
Bochic “Capri” Vintage Ruby & Multi Gem Bangle Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Ruby & Multi Gem Bangle Set In 18K Gold & Silver Natural Rubies - 9 Carats Amethyst, Peridot & Topaz 14.00 Carats This Bangle is from the "Cap...
Amethyst, Peridot, Ruby, Topaz, 18k Gold, Silver
Natural Siam Ruby (Thailand) 0.68ct No-Heat
Located in Nicosia, Cyprus
Details • Gemstone: Natural Ruby • Cut: oval • Weight: 0.68 ct • Origin: Siam (thailand) • Treatment: No treatement / no-heat • Dimensions: 5.6 x 4.2 x 3 • Certificate: Not in...
Ruby
$1,875Sale Price|25% Off
Bochic “Capri” Natural Ruby, Sapphire & Diamond Bangle Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Natural Ruby, Sapphire & Diamond Bangle Set In 18K Gold & Silver Natural Blue Sapphires - 15 Carat Natural Rubies - 4 Carat Natural Diamonds - 3 Carat Thi...
Diamond, Ruby, Sapphire, Blue Sapphire, 18k Gold, Silver
$1,096Sale Price|20% Off
Bochic “Capri” Vintage Ruby, Multi Sapphire & Diamond Ring Set In 18K Gold & Sil
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Ruby, Multi Sapphire & Diamond Ring Set In 18K Gold & Silver Natural Ruby 7.00 carats Natural Multi Fancy Sapphires 5.00 carats Natural Diamonds ...
Diamond, Ruby, Sapphire, Blue Sapphire, Pink Sapphire, Yellow Sapphire, ...
Ruby Bracelet 9.16 Carats 10K White Gold
Located in Bonita Springs, FL
Comes with Gemological Appraisal by GIA GG/AJP All Gemstones are Natural in Origin Ruby: 9.16 Carats (Treatment: Filling) Metal: 10K White Gold Length: 7 Inches Custom sizing availab...
Ruby, Gold, 10k Gold, White Gold
$455Sale Price / item|50% Off
Silvorra 9.15ct Multi Gemstone Embedded Maple Leaf Oxidised Brooch Pendant
Located in New York, NY
This enchanting 9.15 carats opals, rubies, blue sapphires, and emeralds multigemstone and diamond leaf brooch pendant is crafted in 925 sterling silver, designed with an elegant open...
Diamond, Emerald, Multi-gemstone, Opal, Ruby, Blue Sapphire, Silver, Ste...
$432Sale Price / item|50% Off
Art Deco Style Ruby Diamond Wedding Band Ring Gift for Her Set in 925 Silver
Located in New York, NY
Ruby Diamond Wedding Band for Women in sterling silver featuring natural ruby of 0.92 carat and diamonds of 0.46 carats. The gorgeous handcrafted band ring goes with every style. Des...
Diamond, Ruby, Silver, Sterling Silver
$1,496Sale Price|20% Off
Bochic “Capri” Vintage Ruby & Fancy Color Sapphire Bangle 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Ruby & Multi Color Gem & Sapphire Bangle Set In 18K Gold & Silver, open and close hinge and safety locks Natural Red Ruby - 6 Carats Natural White Topa...
Peridot, Ruby, Sapphire, Blue Sapphire, Topaz, 18k Gold, Silver
$2,800Sale Price|50% Off
Ruby White Diamond Rose Quartz Briolette Dangle Earrings
Located in Austin, TX
Rubies (origin: Karur, India) are showcased in these classically elegant dangle earrings. The rubies are a pure, vibrant red color and are well cut and polished. They are complimen...
White Diamond, Quartz, Ruby, 18k Gold
$2,560Sale Price|20% Off
Set in 18K Gold, Invisible set Rubies, Yellow Diamond & Diamonds Engagement Ring
By JEWEL HUB
Located in Hong Kong, HK
A very gorgeous and beautiful, modern style, Ruby & Yellow Diamond Engagement Ring set in 18K White Gold & natural Diamonds. The weight of the invisible set Rubies is 1.42 carats. Th...
Yellow Diamond, Ruby, 18k Gold
GIA Certified 1.30 Carat Burma Ruby Diamond Ring in Platinum
Located in Hong Kong, HK
This extraordinary ring showcases a GIA-certified 1.30-carat Burma ruby, renowned for its vivid red hue and exceptional quality. The oval-cut ruby, ethically sourced from the legenda...
Diamond, Ruby, Platinum
Georgios Collections 18 Karat White Gold Ruby Heart and Diamond Pendant Necklace
Located in Astoria, NY
Designer S.Georgios presents a striking 18 Karat White Gold heart-shaped pendant necklace that beautifully symbolizes love and elegance. At the center of the design lies a vivid hear...
Ruby, White Diamond, Diamond, White Gold, Yellow Gold, 18k Gold, Gold
Art Deco Style Gold Rubies Emeralds Black Onyx Diamonds Enamel Jade Earrings
Located in Bangkok, TH
In these classic Art Deco Style earrings the tops are 14 mm round carved black onyx buttons with small emeralds round cabs in the center,middle parts are in white gold, 20 round full...
Diamond, Emerald, Jade, Onyx, Ruby, Gold, 14k Gold, Enamel
Bez Ambar 18K 2.41ct GIA Asscher Quadrillion Diamond Vivid Ruby Ring 8.91ctw
By Bez Ambar
Located in Winter Springs, FL
An exceptional Bez Ambar cocktail ring, circa the 1990s, crafted in 18 karat yellow gold and centered by a 2.41 carat Asscher cut diamond accompanied by its original GIA laboratory r...
Diamond, Ruby, 18k Gold, Yellow Gold
$1,176Sale Price|20% Off
Bochic “Orient” Vintage Diamond, Ruby & Multi Sapphire Ring Set In 18K Gold & Si
By Bochic
Located in New York, NY
Bochic “Orient” Vintage Natural Ruby, Diamond & Multi Sapphire Ring Set In 18K Gold & Silver Natural Center Ruby 9.00 Carat Natural Fancy Multi Color Sapphires 15.00 Carat...
Diamond, Ruby, Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire,...
$1,336Sale Price|20% Off
Bochic “Capri” Vintage Ruby & Multi Sapphire Earrings Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Ruby & Multi Rose Cut Sapphire Earrings Set In 18K Gold & Silver Natural Ruby Oval Shape from Africa 8 carats Natural Multi color Rose Cut Sapphires...
Ruby, Sapphire, Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sap...
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.