Van Cleef & Arpels Diamond Ruby 18k Yellow Gold Flower Dome Ring Size 5.5
Located in Simpsonville, SC
The Van Cleef & Arpels Dome Ring is a striking example of exquisite craftsmanship, reflecting the brand's dedication to luxury and detail. This dome ring is crafted from rich 18k yel...
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
AGL Certified Burma Ruby and Diamond Cocktail Ring
Located in Chicago, IL
This beautifully unique cocktail ring boasts a bright emerald cut Burma ruby measuring 7.22 x 5.60 x 4.62 mm and weighing 2.01 carats, surrounded by 8 pear shaped diamonds, 6 oval an...
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
0.55 Carat Oval Cut Ruby Diamond Accents 10K White Gold Pendant
Located in New York, NY
Decorate yourself in elegance with this Pendant is crafted from 10-karat White Gold by Gin & Grace Pendant. This Pendant is made up of 6x4 mm Oval-Cut Ruby (1Pcs) 0.55 Carat, 2.0 mm ...
Diamond, Ruby, 10k Gold, White Gold
Ruby and Diamond Platinum Band Cocktail Ring Estate Fine Jewelry
Located in Montreal, QC
Simply Beautiful! Platinum Cocktail Band Ring, securely set with 5 Fine high quality French cut Rubies, weighing approx. 2.07 total carats and Diamonds weighing approx. 0.65 total ca...
Diamond, Ruby, Platinum
Ruby Dangle Earrings Diamonds 2.45 Carats 10K Yellow Gold
Located in Bonita Springs, FL
It comes with the Gemological Appraisal by GIA GG/AJP All gemstones are natural 2 Rubies = 2.37 Carats Treatment: Filling 24 Diamonds = 0.08 Carats Metal: 10K Yellow Gold Dimensions:...
Diamond, White Diamond, Ruby, Gold, 10k Gold, Yellow Gold
IGI Certified Italian Cocktail Ring 18kt Yellow Gold with Ruby and Diamonds
Located in Esch sur Alzette, Esch-sur-Alzette
Top Width: 1,8cm Top Length: 1,7cm Top Height: 0,4cm Band Width: 0,4cm This exquisite IGI Certified Italian Cocktail Ring is an elegant creation crafted in 18kt yellow gold, combini...
Diamond, Ruby, 18k Gold, Yellow Gold
18K Yellow Gold Ruby Diamond Bracelet
Located in Coral Gables, FL
This spectacular 18 karat yellow gold bracelet featuring 120 square cut rubies totaling 6 carats accented by 48 round cut diamonds with SI clarity diamonds and H color diamonds totaling 0.24 carats with width approximately 8.6mm measuring 7 inches long with box clasp and figure 8 safety weighing 21 grams showcases extraordinary ruby diamond bracelet with substantial gemstone weight and yellow gold construction representing exceptional craftsmanship. The estate ruby bracelet...
Diamond, Ruby, 18k Gold
David Webb 18K Yellow Gold Green Enamel Ruby Eyes Frog Brooch
By David Webb
Located in New York, NY
A playful and highly collectible David Webb frog brooch crafted in richly textured 18K yellow gold and vibrant green enamel. Designed with Web...
Ruby, 18k Gold, Yellow Gold, Platinum, Enamel
Ruby Cross Ring 1.66 Carats Gold Plated Silver
Located in Bonita Springs, FL
Comes with Gemological Appraisal by GIA GG/AJP All Gemstones are Natural in Origin Ruby: 1.66 Carats (Treatment: Filling) Metal: Gold Plated Sterling Silver Ring Size: 6 US Custom si...
Ruby, Gold Plate, Silver, Sterling Silver
Cellini 18 Karat Gold Bee Brooch with Diamonds, Gem Stones and South Sea Pearl
By Cellini
Located in New York, NY
A beautifully designed 18 karat yellow gold bee brooch. The bee's wings are set with round brilliant diamonds and cabochon rubies. The body is set with a 12 x 8.5 mm South Sea Pearl ...
Diamond, Emerald, South Sea Pearl, Ruby, Blue Sapphire, 18k Gold, Yellow...
12.37 CTW Floral Ruby & Diamond Bracelet with Pear Cut Rubies in 14K Yellow Gold
By VR Jewels
Located in New York, NY
This floral bracelet features pear cut ruby totaling 12.37 carats, set in rich 14k yellow gold. Accented by round brilliant-cut diamonds totaling 0.97 carats-each measuring 1.4 mm-th...
Diamond, Ruby, Gold, 14k Gold, Yellow Gold
IGI Certified Rare 14.13 Carat Burma Ruby & Diamond Ring in 18K White Gold
Located in KOWLOON, HK
Introducing a truly extraordinary piece of jewelry, the IGI Certified 14.13 Carat Burma Ruby and Diamond Halo Ring. This ring is a testament to the unparalleled beauty and exceptiona...
Diamond, Ruby, 18k Gold, White Gold
Rubies, Sapphires, Diamonds, Rose Gold and Silver Earrings.
Located in Marcianise, CE
Amazing earrings in 9 kt rose gold and silver structure mounted with diamonds, rubies and sapphires for all the length. This elegant object combines solid 9 kt gold and solid 800 sil...
Diamond, Ruby, Sapphire, 9k Gold, Rose Gold, Silver
Handcrafted Pave Set Ruby Stacking Band Ring in 18k Solid Rose Gold
By VR Jewels
Located in New York, NY
Handcrafted Pave Set Ruby Stacking Band Ring in 18K Gold symbolizes the everlasting love between a couple. It shows the infinite love you have for y...
Ruby, Gold, 18k Gold, Rose Gold
$5,128Sale Price|25% Off
Art Nouveau White Diamond Ruby Turquoise Coral Pearl Enamel Yellow Gold Necklace
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...
Coral, Diamond, White Diamond, Pearl, Cultured Pearl, Freshwater Pearl, ...
Ruby and Diamond Antique Inspired Bracelet in 18 White Gold
Located in Bangkok, TH
A stunning mix of vibrant rubies, adding rich color and energy to the luxurious diamond bracelet. The rubies are carefully arranged to complement the sparkling diamonds, creating a h...
Diamond, Ruby, 18k Gold, White Gold
Art Deco Burmese Ruby and Diamond Ring, 1920s
Located in Idar-Oberstein, DE
Wonderful Art Deco ring set with an intense vivid red Burma ruby (approx. 2ct). Old cut and calibré cut diamonds are placed in a dome shape setting around the ruby. Total diamonds ...
Diamond, Ruby, White Gold
Choker in 18 Karat Yellow Gold With Diamonds, Turquoise And Rubies
Located in Filothei, GR
A modern statement with effortless elegance, this choker brings together vibrant turquoise, rich rubies, and luminous diamond pavé set in gold. Bold yet beautifully balanced, it adds...
Diamond, Black Diamond, Ruby, Turquoise, Gold, 18k Gold, Yellow Gold
$4,680Sale Price|20% Off
Vintage Circa 1980s 18k Gold Natural Diamond And Oval Cut Ruby Band Strong Ring
Located in Fatih/İstanbul, 34
Vintage Circa 1980s 18k Gold Natural Diamond And Oval Cut Ruby Band Strong Ring In very good condition. Total weight is 16.7 grams. Totally is diamond 2.10 ct. The diamond is has F...
Diamond, Ruby, 18k Gold
1.50 Carat Ruby Engagement Ring. Oval Ruby Old Mine Diamond Halo Ring Platinum
Located in New York, NY
Other Details: Primary Stone: Ruby Center Ruby Weight: 1.50 Carats Center Ruby Cut: Oval Cut Secondary Stones: Diamonds Diamond Weight: Approximately 0.50 Carats Diamond Cut: Old M...
Diamond, Ruby, Gold, Yellow Gold, Platinum, 18k Gold
14K Yellow Gold Solid Natural Ruby Vintage Style Floral Filigree Engagement Ring
Located in Bangkok, TH
An elegant impression with this Natural Ruby Vintage Style Floral Filigree Ring, designed with soft elegance and romantic charm. Featuring a striking oval-cut ruby at the center, the...
Ruby, Gold, Yellow Gold, 14k Gold
CARTIER Vintage Floral Motif Ring, 18k Yellow Gold with Emeralds, Sapphires
By Cartier
Located in PARIS, FR
Cartier vintage ring with a floral motif, in 18k yellow gold, featuring emeralds, sapphires, rubies, and diamonds. Condition: good condition, slight micro-scratches, some minor scrat...
Diamond, Emerald, Ruby, Sapphire, 18k Gold, Yellow Gold
$13,000 / item
Ruby and Diamond Line Bracelet in 18K White Gold
Located in Bangkok, TH
This ruby diamond bracelet in 18K white gold features vivid red rubies alternating with diamonds in a geometric line. Its balanced arrangement creates an elegant rhythm around the wr...
Diamond, Ruby, Gold, 18k Gold, White Gold
$61,250Sale Price|65% Off
Rare Fancy 18KT Gold Estate 75CT Gorgeous Fancy Glittering Ruby Diamond Necklace
Located in New York, NY
The Following Items we are offering is a Rare Important Estate Radiant 18KT White Gold Gorgeous Winston Style Royal Ruby and Diamond Necklace!!! Approx T.C.W for Necklace: Glitterin...
Diamond, Ruby, Gold, 18k Gold
Platinum Burma Spinel & Round Diamond Wide Bracelet 82.71ct No Heat High Jewelry
Located in Great Neck, NY
A Pink Spinel, Diamond Bracelet A breathtaking Platinum Burma Pink Spinel & Diamond Mesh Bracelet, presenting an extraordinary 82.71 carats of rare natural gemstones in a fluid, hand-woven platinum construction. This collector-level masterpiece showcases 118+ fine Burma spinels weighing 73.36 carats, arranged in a seamless, painterly ombré of pink, vivid reds, hot pinks, magentas, blush pinks, peach, and rich orange hues. Each cushion-cut and oval spinel is carefully matched for saturation, brilliance, and clarity—creating one of the most exceptional multi-color spinel palettes ever curated in a single jewel. Framing and enhancing the spinel mosaic are 8.85 carats of F-color, VS-clarity white diamonds, including several larger brilliant-cut diamonds strategically spaced throughout the mesh to introduce flashes of white light amid the neon spinel...
Diamond, White Diamond, Pink Diamond, Sapphire, Blue Sapphire, Pink Sapp...
$1,175Sale Price / item|21% Off
Ruby and Diamond Baguette Ring
By Gregory Mikaelian & Sons, Inc.
Located in Los Angeles, CA
14k yellow gold ruby and diamond ring, containing 1 round ruby of gem quality weighing .36pts. and 6 baguette cut diamonds weighing .22pts. and 6 round full cut diamonds weighing .20...
Diamond, Ruby, 14k Gold
Vintage 9 Carat Gold Dearest Ring
Located in Chipping Campden, GB
A spectacular vintage dearest set with wonderful round cut stones, set so their initials spell "Dearest". Diamond, Emerald, Amethyst, Ruby, Emerald, Sapphire, Tourmaline. Modelled in...
Amethyst, Diamond, Emerald, Ruby, Blue Sapphire, Tourmaline, Gold, 9k Go...
Victorian 9ct Rose Gold Locket with Rubies and Seed Pearls, England
Located in New York, NY
This charming Victorian round locket is a classic example of sentimental jewellery from the late 19th century. Crafted in 9ct rose gold, its surface is adorned with a delicate arrang...
Pearl, Ruby, 9k Gold, Rose Gold
Konforti 28kg Silver & Enamel Sculpture, 'Summer Pond'- Handcrafted To Order
Located in ראשון לציון, IL
The “Summer Pond” is a monumental sculptural centerpiece that unites master craftsmanship with the poetic stillness of nature. Specifications & Details Materials: Solid 925 Sterling...
Agate, Amethyst, Chalcedony, Emerald, Garnet, Jade, Pearl, Ruby, Sapphir...
1.97 Carat Natural Ruby and Diamond Half-Eternity Ring Made in Platinum
Located in Tokyo, JP
A beautiful Ring made in Platinum featuring 1.97 Carats of Natural Rubies and 0.992 Carats Diamonds. Rubies are referred to as "Ratnaraj" in Sanskrit meaning the King of Gems. Early ...
Diamond, Ruby, Platinum
Royal queen Natural polki Diamonds gemstones gold foil necklace set with jhumka
Located in Delhi, DL
## Traditional Indian Natural Polki Diamond & Gemstone Gold Foil Long Necklace Set with indian jhumka Embrace the grandeur of India's royal heritage with this exquisite **Tradit...
Yellow Sapphire, Blue Sapphire, Ruby, Pearl, Emerald, Diamond, Coral, 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...
Diamond, White Diamond, Ruby, 18k Gold, Yellow Gold
Ruby and Diamond Art Deco Style Pendant in 14K White Gold
Located in Bangkok, TH
A bold celebration of color and geometric elegance. An oval ruby set in a sleek bezel takes center stage, while French-cut rubies radiate outward in four directions, creating a strik...
Diamond, Ruby, 14k Gold, White Gold
18K Yellow Gold Ring with Star Ruby (Approx. 3.00ct, Size 7)
Located in New York, NY
18K Yellow Gold Ring with Star Ruby (Approx. 3.00ct, Size 7) A captivating example of natural beauty and fine craftsmanship. This elegant ring features a natural star ruby weighing ...
Ruby, Star Ruby, Yellow Gold
Belle époque 1910 Ruby Diamond Ring yellow Gold Platinum
Located in Zurich, Zollstrasse
Indulge in the Vintage elegance of these exquisite Belle Epoque Ring in yellow Gold and Platinum featuring an oval old European cut Diamond weighing ca. 1.02 ct withing a border of c...
Diamond, Ruby, Yellow Gold, Platinum
Natural Unheated Mozambique Ruby 1.09 carats with GIA Report
Located in Los Angeles, CA
Mined in Mozambique, here is an electrifying Ruby that boasts a natural blood red color. Symbolic of passion and love, this gemstone is an ideal choice for today’s modern bride, look...
Ruby
$75,000Sale Price|60% Off
NWT $187, 500 18KT Gold Gorgeous Glittering Ruby Diamond Necklace over 70CTS!
Located in New York, NY
The Following Items we are offering is a Rare Important Estate Radiant 18KT White Gold Gorgeous Winston Style Royal Ruby and Diamond Necklace!!! Approx T.C.W for Necklace over 70CTS ...
Diamond, Ruby, Gold, 18k Gold
Natural Unheated Red Mozambique Gemstone 1.24 carats with GIA Report
Located in Los Angeles, CA
Presenting a natural Unheated Mozambique Ruby, weighing 1.24 carats, accompanied by a GIA Report for authenticity. The oval-shaped gem, measuring 7.39 x 5.31 x 3.56 mm, features a Br...
Ruby
Victorian GIA 2.50 carat Burma no heat ruby diamond 18k yellow gold ring
Located in Beverly Hills, CA
This beautiful Victorian ruby and diamond ring is a romantic antique design from the 1900’s, centered by a GIA-certified oval double cabochon ruby weighing approximately 2.50 carats....
Ruby, Diamond, Silver, Yellow Gold, 18k Gold, Gold
Cabochon Emerald, Ruby with Diamond Ring set in 18K Rose Gold Settings
Located in Bangkok, TH
Cabochon Emerald 2.23 carats, Ruby 2.05 carats with Diamond 0.16 carat Ring set in 18K Rose Gold Settings Width: 2.0 cm Length: 1.4 cm Ring Size: 52 Total Weight: 5.93 grams "We ...
Diamond, Emerald, Ruby, 18k Gold, Rose Gold
Frog Rubies Eyes 18k Yellow Gold Enamel Man Cufflinks Made in Italy
Located in Rome, IT
Rossella Ugolini Frog Rubies Eyes 18k Yellow Gold Enamel Man Cufflinks Made in Italy. Two mirrored frogs are portrayed in motion. Handcrafted in 18-karat gold, they have ruby eyes....
Ruby, Gold, Enamel, Yellow Gold, 18k Gold
$4,044Sale Price|20% Off
Custom Pink Tourmaline & Ruby Ring in 14k Yellow Gold
Located in Bloomington, MN
Custom Pink Tourmaline & Ruby Ring in 14k Yellow Gold This custom-designed ring is crafted in 14k yellow gold and centers on a vibrant 2.28ct emerald-cut pink tourmaline. The elonga...
Ruby, Tourmaline, 14k Gold, Yellow Gold
GRS Certified 1.19 Carats Pigeon Blood No Heat Burma Ruby and Oval Twin Ring
Located in Hung Hom, HK
An irreplaceable acquisition for the astute jewelry collector. This exquisite Toi et Moi (Twin) ring unites the absolute pinnacle of the gemstone world: a GRS-certified, completely u...
Diamond, White Diamond, Ruby, 18k Gold
Unheated 19.91ct Burma Star Ruby and Diamond Cocktail Ring in Platinum
Located in La Jolla, CA
19.91 ct Burma Unheated Star Ruby and Diamond Ring in Platinum Ruby Ring features an oval Cabochon Star Ruby weighing 19.91 carats originating from Myanmar (Burma) surrounded by a ...
Diamond, Ruby, Star Ruby, Platinum
1.24 Carat Pave Diamond Ruby Gold Pointer Dog Brooch
Located in Stamford, CT
1930's Art Deco Pave Diamond Ruby gold pointer dog brooch. This unique brooch features a stunning 31 round cut diamonds totaling 1.24 carat's in a pave set...
Diamond, Ruby, Gold, 14k Gold, White Gold, Yellow Gold
Georgios Collections 18 Karat Yellow Gold Diamond Ruby Coin Pendant of Athena
Located in Astoria, NY
S.Georgios Designer 18 Karat Yellow Gold Coin Pendant all handmade and features a Gold Coin of Athena the Goddess and protector of Athens, and also known as the symbol of knowledge (...
Diamond, White Diamond, Ruby, Gold, 18k Gold, Yellow Gold
Cartier Rare Rouleaux 18K White Gold Onyx, Ruby And Diamond Ring
By Cartier
Located in New York, NY
A striking example of Cartier's celebrated Rouleaux collection, this 18K white gold ring showcases the maison's mastery of geometric design and exceptional gemstone craftsmanship. Th...
Onyx, Ruby, Diamond, 18k Gold, White Gold
Vintage 18k Gold “Étoile d’Amour” Pendant – French Love Medal by Perroud, Lyon
Located in BÉZIERS, FR
Charming vintage 18k yellow gold Étoile d’Amour pendant by the Lyon-based jeweler Perroud, featuring a star motif set with a small synthetic ruby of approximately 1.5 mm. The finely ...
Ruby, Gold, 18k Gold
Antique Victorian Gemstone Pendant Enamel 14k Yellow Gold Etruscan Greek Key
Located in Torrance, CA
Distinct antique Victorian Etruscan Revival pendant (circa 1860s to 1880s) crafted in 14 karat yellow gold. Small approx. 1.5mm to 2mm rubies and an emerald adorn the mount. Small ...
Emerald, Pearl, Ruby, Gold, 14k Gold, Yellow Gold, Enamel
Vintage Inspired 1.5ct Ruby & Diamond Halo Eternity Band Ring in 14K Yellow Gold
By VR Jewels
Located in New York, NY
This half band ring is features a 1.5 carat natural oval rubies in 14K yellow gold. and vibrant with a total stone weight of 1.5 carats, each measuring approximately 5.06X3.15 mm an...
Diamond, Ruby, Gold, 14k Gold, Yellow Gold
18K 750 Solid Yellow Gold Natural Ruby Eyes & Green Gemstones Cat Pin Brooch
Located in New York, NY
Vintage 18K Yellow Gold Natural Ruby Eyes & Green Gemstones Cat Pin Brooch Metal Type: 18K Solid Yellow Gold Total Item Weight: 4.8 Grams Primary Stone: Natural Ruby Ruby Color: R...
Ruby, 18k Gold, Yellow Gold
$592Sale Price|25% Off
Certified 1.182ct Burmese Ruby, No Heat, Cabochon/ Oval
Located in เกาะสมุย, TH
A natural 1.182ct Myanmar ruby cut in smooth oval cabochon form, showing pinkish‑red saturation with a balanced medium tone. Natural inclusions are visible under loupe, adding charac...
Ruby
Natural H/Si White Diamond Ruby Studs Solid 14k Yellow Gold Three Floral Earring
Located in Jaipur, IN
Type: Triple cluster halo stud earrings. Details:- Item Code :- EAMJ-1470 Material - 14K Solid Yellow Gold Earring Size - 19*19 mm Diamond Weight - 0.92 Carat Gross Weight - 3.94 Gr...
Diamond, White Diamond, Ruby, Gold, 14k Gold, Yellow Gold
18K Yellow Gold Natural 1.21 Ct Emerald-Cut Ruby and Diamond Halo Stud Earrings
By VR Jewels
Located in New York, NY
These elegant stud earrings features 2 natural emerald cut rubies totaling 1.21 carats, set in radiant 18K yellow gold. Each ruby, measuring approximately 6x4 mm, is elegantly surrou...
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
French 1950s Ruby Diamonds 18 Karat Rose Gold Asymmetrical Tank Ring
Located in Poitiers, FR
Ring in 18 karat rose gold, eagle head hallmark. The top of this tank ring is asymmetrical, set on the roll with a row of calibrated verneuil rubies in t...
Diamond, White Diamond, Ruby, Gold, 18k Gold, Rose Gold
Late 1950s Gold & Ruby Brutalist Walter Schleup Brooch
Located in Maywood, NJ
Bruatlist jewelery design is fully embodied in this 14k gold and ruby brooch, meticulously crafted by Walter Schleup in his Montreal studio. "Walter Schluep, who trained as a jewel...
Ruby, Gold, 14k Gold
Antique 18ct Gold, Victorian Ruby & Diamond Trilogy Daisy Cluster Ring
Located in Brighton, GB
Ruby & Diamond Trilogy Ring 18ct Yellow & White Gold Stamped Circa 1880 Introducing an exquisite Victorian ring, crafted in 18ct gold, showcasing a stunning triple daisy cluster ...
Diamond, Ruby, Gold, 18k Gold
Tiffany & Co. 18k Yellow Gold Diamond and Gemstone En Tremblant Bouquet Brooch
Located in Sherman Oaks, CA
Gorgeous Bouquet Cornucopia Brooch by Tiffany & Co. Features Bulbs of Prong-Set Ruby, Emerald, and Sapphire "Flowers" with Bezel-Set Diamond Centers Each Bulb is En Tremblant Total R...
Diamond, Emerald, Ruby, Blue Sapphire, 18k Gold, Yellow Gold
14k Gold GIA 7.5ctw Vivid Multicolor Gemstones Open Wreath Pin Brooch Pendant
Located in Montclair, NJ
-- Stone(s) -- (16) Natural Genuine Gemstones - Sapphires, Emeralds, Rubies, Aquamarines & Tourmalines - Round Brilliant Cut - Prong Set - Vivid Colors - Super High Quality - ** See ...
Aquamarine, Emerald, Ruby, Blue Sapphire, Tourmaline, Gold, 14k Gold, Ye...
Modern Oval Ruby & Marquise Diamond Three-Stone Bezel Set Ring 18K Yellow Gold
By VR Jewels
Located in New York, NY
This three stone ring features a 0.6 carat oval ruby set in 18k yellow gold. The ruby measuring approximately 4.8 x 6 mm, beautifully secured in a bezel setting. The center ruby is a...
Diamond, 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.