Art Deco Style Engraved Jade Black Onyx Ruby Cab Gold Diamonds Cocktail Ring
Located in Bangkok, TH
Classic and elegant ring composed of an oval engraved Jade cabochon measuring 19x28mm surmounted by a Round Ruby Cabochon in a Black Onyx ring and set in a 14k yellow gold bezel...Th...
Diamond, Jade, Onyx, Ruby, Gold, 14k Gold
$185Sale Price / item|50% Off
Unisex Ruby Diamond Dome Crafted Ring in 925 Silver Designer Jewelry Gift
Located in New York, NY
Unisex Ruby Diamond Dome Crafted Ring for Her in sterling silver featuring natural ruby of 1.75 carat and diamonds of 0.12 carats. The gorgeous handcrafted ring goes with every style...
Diamond, Ruby, Silver, Sterling Silver
Bochic “Orient” Vintage Sapphire & Ruby Panther Ring Set In 18 K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Orient” Vintage Natural Multi Sapphire & Ruby Panther Ring Set In 18 K Gold & Silver Yellow Natural Sapphires, pave set from Sri Lanka 5 carat Blue Natural Sapphi...
Ruby, Sapphire, Blue Sapphire, Yellow Sapphire, Gold, Silver
Modern 18 Karat Gold 1.20 Carat Ruby 1.05 Carat Diamond Eternity Ring
Located in Vilnius, Vilniaus apskr.
This is a modern design eternity ring crafted in 18K gold. Circa 2000. The piece features: - 6 rubies, square cut, TW 1.20ct, spR 6/4, P2 - 3 diamonds, round brilliant/antique cut,...
Diamond, Ruby, Gold, 18k Gold
Bochic “Orient” Vintage Ruby, Diamond & Multi Sapphire Ring Set In 18K Gold & Si
By Bochic
Located in New York, NY
Bochic “Orient” Vintage Natural Ruby & Multi Sapphire Ring Set In 18K Gold & Silver Natural Center Ruby 8.00 Carat Natural Fancy Multi Color Sapphires 15.00 Carat Natural ...
Sapphire, Ruby, Diamond, Silver, 18k Gold
$2,242Sale Price|25% Off
14K White Gold Diamond Circle Drop Earrings with Rare Ruby Briolettes
By OGI Ltd
Located in New York, NY
A masterful display of elegance and rarity, these 14K white gold drop earrings feature two exceptional genuine ruby briolettes weighing a total of 4.47 carats. Expertly faceted to ca...
Diamond, Ruby, Gold, 14k Gold, White Gold
$100Sale Price / item|50% Off
Natural Ruby Gemstone Wedding Ring for Women Gift Made in 925 Sterling Silver
Located in New York, NY
Ruby Gemstone Wedding Ring for Women in sterling silver featuring natural ruby of 0.99 carat and diamonds of 0.04 carats. The gorgeous handcrafted ring goes with every style. Designe...
Ruby, Silver, Sterling Silver
$64,000Sale Price|20% Off
David Webb Ruby, Emerald and Diamond Ring in 18K Yellow Gold and Platinum
By David Webb
Located in Chicago, IL
An iconic and substantial ring by David Webb, showcasing the bold sculptural language and rich gemstone combinations for which the house is renowned. The ring features a striking ar...
Diamond, Emerald, Ruby, Gold, 18k Gold, Yellow Gold, Platinum
14 Mm Pearls, Rubies, Diamonds, 14 Karat White Gold Earrings.
Located in Marcianise, Marcianise (CE)
Beautiful dangle earrings in 14 kt white gold structure mounted with diamonds and a ruby in the final part. As pendant, a pearl. These earrings were totally handmade by Italian mast...
Diamond, Pearl, Ruby, 14k Gold, White Gold
$33,600Sale Price|20% Off
Cartier 14K Gold Mid-Century Ruby-Set Mirrored Pill & Compact Box
By Cartier
Located in Chicago, IL
This exceptional Cartier pill and compact box is a superb example of refined mid-century French luxury, crafted in solid 14 karat yellow gold and richly accented with 57 natural rubi...
Ruby, Diamond, 14k Gold, Yellow Gold
Balloon Style Pear Shape Natural Ruby Cabs Diamonds 14K White Gold Stud Earrings
Located in Bangkok, TH
2 pear-shaped Natural Ruby pear shape cabs measuring 12x16 mm. mounted like balloons with the thread holding them made of 14 carat White Gold and 44 small diamonds. In 1978 our work...
Diamond, Ruby, 14k Gold, White Gold
Cabochon Ruby with Diamond Earrings set in 18K White Gold Settings
Located in Bangkok, TH
Cabochon Ruby 8.96 carats with Diamond 1.38 carats Earrings set in 18K White Gold Settings Width: 2.0 cm Length: 3.8 cm Total Weight: 15.06 grams "We first opened doors in 1980 wh...
Diamond, Ruby, 18k Gold, White Gold
$342Sale Price / item|50% Off
Classic Ruby Sapphire and Diamond Magic Ring for Her 925 Sterling Silver
Located in New York, NY
Classic Ruby Sapphire and Diamond Magic Ring for Women in sterling silver featuring natural ruby, sapphire of 4.2 carat and diamonds of 0.28 carats. The gorgeous handcrafted ring goe...
Diamond, Ruby, Sapphire, Blue Sapphire, Silver, Sterling Silver
Van Cleef & Arpels Turquoise and Ruby Birds Brooch, 1960s
Located in Roma, RM
A refined and highly collectible bird brooch by Van Cleef & Arpels, created during the 1960s, a decade widely regarded as one of the Maison’s most inspired periods for whimsical and ...
Ruby, Turquoise, 18k Gold
Bochic “Capri” Vintage Amethyst & Multi Color Sapphires Cuff Set In 18K & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Purple Amethyst & Multi Color Sapphires Cuff Set In 18K & Silver Natural Purple Amethyst - 5 Carats Natural Red Ruby - 12 Carats Natural Light Blue Aquama...
Amethyst, Ruby, Sapphire, Topaz, 18k Gold, Silver
$207Sale Price / item|50% Off
Silvorra Multi Gemstone Emerald, Ruby & Sapphire Eternity Band Ring for her
Located in New York, NY
This delicate 925 sterling silver band ring is adorned with a harmonious trio of natural emeralds, rubies, and blue sapphires. Oval 4x2.5 mm emeralds and 3 mm rubies are interspersed...
Emerald, Ruby, Sapphire, Multi-gemstone, Silver, Sterling Silver
$1,500 / item
Ruby and diamonds 14k gold ring.
Located in Istanbul, TR
Ruby and diamonds 14k gold ring. Oval Ruby gold ring. Ruby diamond halo ring. Red gemstone ring. July birthstone ring. Metal: 14k gold Weight: 3 gr depends from size Gemstones: Rub...
Diamond, Ruby, 14k Gold
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 Orange S...
Diamond, Emerald, Ruby, Sapphire, 18k Gold, Silver
$207Sale Price / item|50% Off
Art Deco Style Ruby July Birthstone Half Band Ring for Women Gift in 925 Silver
Located in New York, NY
This Square Cut Ruby July Birthstone Half Eternity Band Ring, beautifully crafted in genuine 925 sterling silver. Set with 1.21 carats of natural rubies, this piece showcases a conti...
Ruby, Silver, Sterling Silver
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 from Sr...
Ruby, Sapphire, Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sap...
$892Sale Price|25% Off
Bochic “Orient” Natural Ruby, Sapphire & Green Jade Brooch or Pendent Set In 18K
By Bochic
Located in New York, NY
Bochic “Orient” Natural Ruby, Sapphire & Green Jade Brooch or Pendent Set In 18K Gold & Silver Natural Multi Sapphire 3 carats Natural Green Calcite 15 carats Natural Ruby 3 ca...
Jade, Ruby, Sapphire, Blue Sapphire, Pink Sapphire, Green Sapphire, 18k ...
$2,008Sale Price|20% Off
Bochic “Capri” Vintage Pearl, Ruby & Multi Gem Necklace Set In 18K & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Pearl, Ruby & Multi Gem Necklace Set in 18K & Silver Elegant and Baroque Italian style Natural Red Ruby Natural Multi Color Gems blue, yellow and g...
Garnet, Pearl, Ruby, Sapphire, Topaz, 18k Gold, Silver
$1,168Sale Price|20% Off
Bochic “Capri” Vintage Ruby & Diamonds Retro Ring Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Natural Ruby & Natural Diamonds Vintage Retro Ring Set In 18K Gold & Silver Natural Emerald Shape Center Ruby 15,00 Carat Natural Diamonds 1.00 Car...
Ruby, Diamond, Silver, 18k Gold
German Kabirski Intra 0.20 Diamond & Rubies Silver Statement Ring
Located in West Palm Beach, FL
Intra belongs to German Kabirski’s Egoist Series, a hallmark design that hides gemstones inside the band. The exterior stays reserved—one precise 0.20 carat golden olive fancy diamon...
Diamond, Ruby, Silver
13 Mm Pearls, Rubies, Diamonds, Platinum Earrings.
Located in Marcianise, Marcianise (CE)
Amazing earrings in platinum structure mounted with three diamonds in the upper part; in the middle, a ruby and, below, a pearl. These earrings were totally handmade by Italian maste...
Diamond, Pearl, Ruby, Platinum
Bochic “Orient” Vintage Emerald & Ruby Cocktail Ring Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Orient” Vintage Natural Emerald & Ruby Cocktail Ring Set In 18K Gold & Silver Natural Cabochon Ruby - 7.50 Carat Natural Round Brilliant Emeralds - 2.00 Carat This Ring...
Emerald, Ruby, 18k Gold, Silver
Retro Art Deco Cuff Bracelet in 14Karat Gold w/ Citrine, Rubies, and Diamonds
By Mouboussin
Located in New York, NY
This striking an 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 Dec...
Citrine, Diamond, Ruby, Gold
$6,790Sale Price|30% Off
Bochic “Capri” Vintage 100 Carat Plus Of Natural Ruby Necklace Set 18K Gold & Si
By Bochic
Located in New York, NY
Bochic “Capri” Vintage 100 Carat Plus Of Natural Ruby Necklace Set in 18K Gold & Silver Elegant and Chic Italian style Natural Red Ruby - 112 Carats 18K Gold & Silver • Signed P...
Ruby, 18k Gold, Silver
$11,760Sale Price|20% Off
18k & Platinum Art Deco Diamond Ruby Ring
Located in Miami, FL
18k & Platinum Weight 4.56g Art Deco Center Old Cut Diamond Approx. 1.35ct Ruby Ring Size 5.75 Measurements 18.7mm x 23.5mm
Diamond, Ruby, Platinum
Heart-Shaped Natural Ruby Pendant Necklace in 14K Gold, 0.30ct, By Angara
By ANGARA INC.
Located in Los Angeles, CA
Product Description: This classic solitaire ruby pendant will steal your heart with its glorious purplish red splendor. Crafted in 14K Solid Gold, its design showcases a heart-shaped...
Ruby, Gold, 14k Gold
Antique Edwardian Diamond Calibre Ruby Ring 14k Gold Platinum Sz 5.5 Engagement
Located in Torrance, CA
Elegant and finely detailed Edwardian era diamond & ruby ring crafted in 14 karat yellow gold and platinum (circa 1900s to 1910s). Centrally mounted estimated 0.60 carat old E...
Diamond, White Diamond, Ruby, Gold, 14k Gold, Yellow Gold, Platinum
$2,400Sale Price / item|20% Off
Mozambique Oval Ruby & Diamond Three Stone Ring in 14K Solid Yellow Gold 2.83 Ct
By VR Jewels
Located in New York, NY
This elegant three-stone ring features 1 oval-cut natural ruby weighing 2.83 carats, beautifully set in rich 14K yellow gold. The ruby measures approximately 8 × 6 mm and is securely...
Diamond, Ruby, Gold, 14k Gold, Yellow Gold
$1,352Sale Price|20% Off
Art Nouveau White Diamond Ruby Red Coral Amethyst Yellow Gold Cocktail Ring
Located in Naples, IT
For any problems related to some materials contained in the items that do not allow shipping, please contact the seller with a private message to solve the problem. We can ship every...
Amethyst, Coral, Diamond, White Diamond, Ruby, 9k Gold, Yellow Gold
$315Sale Price / item|50% Off
4.8cts Ruby Infinity Ring Ruby Eternity Band in Silver Jewelry for Wife Gift
Located in New York, NY
4.8cts Ruby Infinity Ring Ruby in sterling silver. You shall need these eternity band to make a statement with your look. These eternity band create a sparkling, luxurious look featu...
Ruby, Silver, Sterling Silver
18ct Gold French Hallmarked, Edwardian Ruby & Pearl Ring with Feather shoulders
Located in Brighton, GB
Antique Ring 18ct Rose Gold French Hallmarked Circa 1910 Step back in time with this exquisite 18ct rose gold ring from the Edwardian era, a true testament to the artistry of that...
Pearl, Ruby, Gold, 18k Gold, Rose Gold
Emerald Ruby Sapphire Diamond Enamel Japanese Scenery Ring in 18K White Gold
Located in Bangkok, TH
Antique-style ring captures the elegance of a Japanese scenery through masterful gemstone and enamel artistry. The pagoda’s structure is brought to life with vivid red rubies, while ...
Diamond, Emerald, Ruby, Sapphire, Blue Sapphire, 18k Gold, White Gold, E...
Diamond and Ruby Art Deco Style Target Engagement Ring in 18K White Gold
Located in Bangkok, TH
This gorgeous vintage inspired ring is beautifully designed with stunning contrast and color. The chic geometric setting is set with brilliantly white natural diamonds as well as nat...
Ruby, Diamond, White Gold, 18k Gold
$960Sale Price|20% Off
14k Yellow Gold 2.44 Carat Abstract Cut Ruby Pendant Necklace 20"
Located in Eagan, MN
This is a great design! The stone has a tapered wedge type cut to it making it very unusual. A very abstract cut if you will. It is 6.7 x 6.2 x 4 mm and is 2.44 carats. The penda...
Ruby, 14k Gold, Yellow Gold
$196Sale Price|30% Off
2.10 Carat Treated Ruby
Located in Hua Hin, TH
Fine 2.10 carat dark red Ruby. Treated by way of Flux Heating, a method where a stone is present with a crack or split and is placed in a canister of flux material such as borax, wh...
Ruby
Vintage Ruby and 9 Carat Gold Three-Stone Ring
Located in Chipping Campden, GB
Set in this glossy 9ct gold ring are three rubies totalling 1.75ct and four rose cut diamond totalling points. The stones are set flush within the band. Fully hallmarked Birmingham 1...
Diamond, Ruby, Gold
$731Sale Price|25% Off
Bochic “Orient” Sapphire, Emerald & Ruby Cocktail Ring Set 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Orient” Sapphire, Emerald & Ruby Cocktail Ring Set 18K Gold & Silver Natural Cabochon Ruby - 21.00 Carat Natural Round Brilliant Emeralds 2.00 Carat Natural Blue Sapphi...
Emerald, Ruby, Sapphire, Blue Sapphire, 18k Gold, Silver
David Webb 18K Yellow Gold Bangle Bracelet with 0.2 Carat Ruby 34.4 Grams
By David Webb
Located in New York, NY
Designer: DAVID WEBB Video: Video Link Detailed Description: Vintage 18K Yellow Gold Bangle with 0.2 Carat Ruby by David Webb DESCRIPTION: Elevate your jewelry collection with this d...
Ruby, 18k Gold, Yellow Gold
$112Sale Price|50% Off
Blue Sapphire and Ruby Studded Dolphin Pendant in 925 Sterling Silver for Her
Located in New York, NY
Blue Sapphire and Ruby Studded Dolphin Pendant in sterling silver studded with round cut sapphire, ruby. This stunning piece of jewelry instantly elevates a casual look or dressy out...
Ruby, Sapphire, Blue Sapphire, Silver, Sterling Silver
Bochic “Capri” Vintage Ruby & Emerald Multi Gem Bangle Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Red Ruby & Emerald Multi Gem Bangle Set In 18K Gold & Silver Natural Ruby, Emerald, Citrine, Amethyst, Topaz, Peridot 20.24 Carats This Bangle is from the ...
Amethyst, Citrine, Emerald, Peridot, Ruby, Blue Topaz, 18k Gold, Silver
Antique Georgian Rose Cut Diamond & Pink Sapphire Snake Ring
Located in Santa Barbara, CA
Take a step back in time to the 18th century with this antique Georgian snake ring. A quartet of serpents undulate around your finger in the richly...
Diamond, Ruby, Pink Sapphire, Gold, 18k Gold, Yellow Gold
1950s Bvlgari Burma no heat Ruby and Diamond Platinum Necklace – SSEF Certified
Located in Roma, RM
An extraordinary and highly important Bvlgari necklace dating to the 1950s, crafted in platinum and showcasing a spectacular display of natural Burma rubies and brilliant-cut diamond...
Diamond, Ruby, Platinum
Ruby Diamond Cupid and Psyche Limoges Enamel Pendant Necklace 14 Karat Gold 1890
Located in New York, NY
This is a rare Museum Quality Belle Epoque - Art Nouveau Limoges Enamel Cupid and Psyche Pendant with a Ruby, Pearl and Old Mine Cut Diamond Border in 14 Karat Gold. The pendant is ...
Ruby, Pearl, Diamond, 14k Gold, Enamel, Yellow Gold, Gold
Bochic “Capri” Natural Ruby & Natural Peridot Bangle Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Natural Ruby & Natural Peridot Bangle Set In 18K Gold & Silver 15.00 Carats This Bangle is from the "Capri" traveling collection and it is the epitome of elegance a...
Peridot, Ruby, 18k Gold, Silver
Bochic “Capri” Ruby, Blue Opal & Multi Sapphire Collier Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Ruby, Blue Opal & Multi Sapphire Collier Set In 18K Gold & Silver Elegant and Classic Italian style Natural Blue Topaz - 2.00 Carats Natural Ruby - 9 Carat...
Opal, Ruby, Sapphire, Blue Sapphire, Pink Sapphire, Yellow Sapphire, Gre...
Natural Red Ruby Cross Pendant Sterling Silver Cross
Located in Brooklyn, NY
New Cute Cross Pendant Sterling Silver 925 plated with Yellow Gold approx weight 2.8 grams Chain: 18' inch Size: approx 1' inch tall Center stone: Natural Ruby 2.0mm approx 0.04ct -...
Ruby, Silver
Pink Tourmaline Ruby Diamond Art Deco Style Engagement Ring in 9K Yellow Gold
Located in Bangkok, TH
This Art Deco-style engagement ring is a true showstopper. A glowing pink tourmaline takes center stage in a sleek bezel setting, radiating feminine elegance with every glance. Accen...
Diamond, Ruby, Tourmaline, 9k Gold, Yellow Gold
Ruby and Diamond Swiss Quartz Movement Watch in 18 Karat White Gold
By Dilys'
Located in Hong Kong, HK
A stunning work of wearable art, this one-of-a-kind Swiss Quartz movement ruby and diamond watch in 18 karat gold by Dilys’ represents the brand’...
Diamond, White Diamond, Ruby, 18k Gold, White Gold
$225Sale Price / item|50% Off
Unique Blue Sapphire & Ruby Studded Elephant Bracelet in 925 Sterling Silver
Located in New York, NY
Unique Blue Sapphire and Ruby Studded Elephant Bracelet in sterling silver showcases endlessly sparkling natural blue sapphire, ruby, weighing 3.56 carat. It measures 7.25 inches lon...
Ruby, Sapphire, Blue Sapphire, Silver, Sterling Silver
Bochic “Orient” Ruby, Topaz & Multi Fancy Sapphire Earrings 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Orient” Ruby, Topaz & Multi Fancy Sapphire Earrings Set 18K Gold & Silver Natural light Blue topaz - 1.50 carat Natural Ruby - 7 carat Natural multi color sapphires - 1 ...
Ruby, Sapphire, Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sap...
GFCO Certified 0.69 Carat Natural Loose Ruby Gemstone From Mozambique
Located in Peshawar, PK
Faceted Ruby Weight: 0.69 Carat Dimension: 5.31 x 5.31 x 3.05 Mm Colour: Red Origin: Mozambique Treatment: Heat Enhancement (H-2) Certificate: GFCO Certificate Available Mozambique...
Ruby, Other
IGI Certified 3.81ct Rubies and Diamonds Ring in 18k White Gold
Located in רמת גן, IL
IGI Certified 3.81ct Rubies and Diamonds Ring in 18k White Gold This exquisite ring is crafted in radiant 18K white gold and showcases a striking pair of oval-cut rubies totaling 3...
Ruby, Diamond, White Gold, 18k Gold
Antique 18ct Gold Art Deco Ruby & Diamond Square Ring
Located in Brighton, GB
Antique Art Deco Ring 18ct Gold Tested Circa 1920’s Fabulous, Art Deco ring. A beautiful square setting filled with natural calibrated rubies & a centre circle of natural, sparkl...
Diamond, Ruby, Gold, 18k Gold
$1,336Sale Price|20% Off
Bochic “Orient” Vintage Ruby & Emerald Cocktail Ring Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Orient” Vintage Natural Ruby & Emerald Ring Set In 18K Gold & Silver Natural Oval Shape Ruby - 15.50 Carat Natural Round Brilliant Emeralds - 3.00 Carat This Ring is fr...
Emerald, Ruby, 18k Gold, Silver
Tutti Frutti Style Rubies Emeralds Gold Diamonds Engraved Jades Dangle Earrings
Located in Bangkok, TH
In these classic Tutti Frutti Style earrings the tops are 2 White Gold Branches, 6 round full cut diamonds weighing 0,18 carats,and 2 pairs of oval Emerald cabs measuring 5x7 mm. an...
Diamond, Emerald, Jade, Ruby, Gold, 14k Gold, White Gold
$46,400Sale Price|20% Off
Cartier Diamond & Ruby Necklace 18K Gold Cartier Paris
By Cartier
Located in Chicago, IL
This refined Cartier necklace showcases the maison’s signature elegance, combining a vibrant natural ruby with sparkling diamonds in a timeless design. Crafted in 18k gold, the neckl...
Diamond, White Diamond, Ruby, 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.