18K White Gold 3.05ct Vivid Red Ruby & 1.10ct Brilliant Diamond Chain Necklace
Located in เกาะสมุย, TH
A ribbon of fire and ice rests along the collarbone—six oval‑cut vivid red rubies totaling 3.05 carats, each stone alive with saturated crimson intensity. Every ruby is haloed in a c...
Diamond, Ruby, 18k Gold, White Gold
$1,575Sale Price|30% Off
Bochic “Capri” Vintage Ruby, Sapphire & Amethyst Cuff - 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Natural Ruby, Sapphire & EmeraldCuff Set In 18K Gold & Silver Natural Rubies 4 Carat Origin Africa Natural Blue Sapphire 4 Carat Origin Sri Lanka Natural Peri...
Emerald, Ruby, Sapphire, Amethyst, Peridot, Topaz, 18k Gold, Silver
Silvorra Pear 1.77 CT Ruby and Diamond Pavé Cocktail Ring in Sterling Silver
Located in New York, NY
This bold floral cocktail ring is crafted in 925 sterling silver and showcases 1.77 carats of natural rubies alongside 1.08 carats of sparkling mixed cut diamonds. The contemporary b...
Diamond, Ruby, Sterling Silver
Snake Ring Aquamarine Ruby Marquis Serpent Double Head Gold Plated Silver
By J DAUPHIN
Located in Los Angeles, CA
Aquamarine Ruby Snake Ring Serpent Double Head Gold Plated Silver Ouroboros Double Serpent Ring Aquamarine Ruby Gold Plated Silver Ouroboros Coiled Snake Statement Designer: J DAU...
Aquamarine, Ruby, Gold Plate, Silver, Brass
925 Silver Geometric Baguette Ruby & Diamond Triple Row Channel Set Band Ring
Located in New York, NY
This timeless ruby and diamond band ring is expertly crafted in 925 sterling silver, showcasing a sleek, architectural design. The ring features 3.16 carats of baguette cut natural r...
Diamond, Ruby, Silver, Sterling Silver
Ruby Ombre Gold Station Necklace, Handcrafted Fine Jewelry
Located in Westport, CT
Burmese ruby, graduated from deep crimson through pink to pale rose. 18K gold beads spaced through the strand mark the shifts in color. The ombré is the structure; the gold punctuate...
Ruby, Gold, 14k Gold, 18k Gold
Bochic “Orient” Vintage Blue Sapphire, Ruby & Emerald Ring 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Orient” Vintage Diamond, Blue Sapphire & Emerald Ring Set In 18K Gold & Silver Natural Center Oval Shape Ruby 9.00 Carat Natural Emeralds 2.50 Carats Natural Blue Sapphir...
Blue Sapphire, Ruby, Emerald, Silver, 18k Gold
Silvorra Marquise Cut Ruby & Diamond Band Ring with Milgrain Detailing in Silver
Located in New York, NY
This gorgeous marquise cut ruby and diamond eternity style band ring is expertly crafted in 925 sterling silver. The ring showcases four marquise cut natural rubies totaling 0.81 car...
Diamond, Ruby, Silver, Sterling Silver
Tiffany & Co. 18K Yellow Gold Large Ruby Hoop Atlas Earrings, Circa 1995
Located in New York, NY
Impressive estate Tiffany & Co. Ruby 18K yellow Gold Atlas Hoop Earrings 20th Century Tiffany & Co. iconic Atlas collection explores the significance of time. Inspired by the...
Ruby, 18k Gold, Yellow Gold
Vintage Ring Ruby solid 18K Yellow Gold Ø 7.5US / 3.1 gr
Located in SE
Beautiful Retro Ring for every day with carved shoulders decorated with oval cut and polished lab made rosy Red Ruby 10 mm x 7.5 mm x 4.5 mm deep / circa 3 ct . Swedish hallmarks, 1...
Ruby, 18k Gold, Yellow Gold
Silvorra Victorian Style 2.36 CTW Pink Oval & Round Ruby Halo Ring in 925 Silver
Located in New York, NY
This exquisite 2.36 carat ruby cluster ring is crafted in 925 sterling silver and showcases a vibrant arrangement of natural rubies. At its center rests an oval ruby measuring approx...
Ruby, Sterling Silver, Silver
$1,140Sale Price|25% Off
Bochic “Orient” Ruby, Emerald & Sapphire Vintage Cluster Ring Set 18K & Silver
By Bochic
Located in New York, NY
Bochic “Orient” Pearl & Multi Sapphire Vintage Cluster Ring Set 18K & Silver Red natural ruby Bubbles 6 carats Origin - Africa Yellow natural sapphire Orange natural sa...
Emerald, Ruby, Sapphire, Yellow Sapphire, 18k Gold, Silver
Vintage Tiffany & Co. 18K Gold, Diamond, and Ruby Half Eternity Band Ring
Located in Philadelphia, PA
A fine signed gold, diamond, and ruby half eternity band ring. By Tiffany & Co. In 18 karat yellow gold. With alternating channel set square cut diamonds and rubies to the top an...
Diamond, Ruby, 18k Gold
Bochic “Capri” Vintage Natural Ruby, Emerald & Diamond Ring - 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Natural Ruby, Emerald & Diamond Ring - 18K Gold & Silver We pay for Duties and Shipping Experience elevated Mediterranean luxury with this rare Bochic “Cap...
Diamond, Emerald, Ruby, 18k Gold, Silver
Royal couture Natural Diamond navratna gemstones gold foil choker necklace set
Located in Delhi, DL
## Traditional Real Gemstone & Natural Polki Diamond Choker Necklace Set Make a bold statement with this exquisite **Traditional Choker Necklace Set**, masterfully handcrafted with **natural Polki diamonds**, **solid gold foil work**, and an artistic arrangement of **real natural gemstones**. Inspired by royal Mughal and antique Indian jewelry...
Pearl, Ruby, Blue Sapphire, Yellow Sapphire, Emerald, Coral, Diamond, Gold
Emma Chapman Hand-Carved Aquamarine Ruby Tsavorite Statement Ring
By Emma Chapman
Located in Frome, Somerset
This striking hand-carved aquamarine statement ring is one-of-a-kind. Handmade in our workshops using the ancient art of stone-carving, it features a central 9.11ct aquamarine, flank...
Aquamarine, Ruby, Tsavorite, 18k Gold, Sterling Silver
$3,300Sale Price|25% Off
Bochic “Capri” Vintage Natural Ruby, Pearl & Sapphire Necklace 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Natural Ruby, Pearl & Sapphire Necklace 18K Gold & Silver Natural Red Ruby 54 Carats Origin Africa South Sea Oval shape South Sea Pearls Origin T...
Pearl, Ruby, Sapphire, 18k Gold, Silver
Maharani Natural polki Diamonds gemstones solid gold foil temple necklace set
Located in Delhi, DL
## This Maharani royal necklace set consists of Natural Polki Diamond & Gemstone in hallmarked solid Gold Foil Celebrate timeless Indian craftsmanship with this exquisite **Trad...
Coral, Diamond, Emerald, Pearl, Ruby, Blue Sapphire, Yellow Sapphire, Gold
Leto Lama Ruby baby Eye Studs 18 Ct Yellow Gold (Pair)
Located in London, GB
A modern interpretation of the ancient protective eye, these one-of-a-kind stud earrings are hand fabricated in rich 18 ct yellow gold and set with vibrant natural rubies. Organic, ...
Ruby, Yellow Gold
$1,383Sale Price|25% Off
Bochic 'Orient' Vintage Ruby & Rose Sapphire Drop Earrings 18K Gold & SIlver
By Bochic
Located in New York, NY
Bochic “Orient” Ruby, Rose Sapphires & Pearl Earrings Set In 18K Gold & Silver South Sea Baroque Pearls, Gray / Silver Color with Pink Tones Circa 90s Multi Color Natural Rose C...
Green Sapphire, Yellow Sapphire, Pink Sapphire, Blue Sapphire, Sapphire,...
Ruby, Diamonds, White Gold Ring.
Located in Napoli, Campania
Elegant ring in 9 kt white gold structure mounted with a central ruby surrounded by a frame of diamonds. This ring was totally handmade by Italian master goldsmiths and it is in perf...
Diamond, Ruby, 9k Gold, White Gold
Aria Jewelry Design Two-Strand Ruby Rondel Necklace, 16-17.5 Inches
Located in Raleigh, NC
This exquisite two‑strand ruby necklace showcases a glowing array of graduated, smooth rondel‑shaped rubies ranging from 4.5mm to 8mm. Each ruby has been expertly heat‑treated to e...
Ruby
$840Sale Price|25% Off
Bochic “Orient” Ruby & Green & Yellow Sapphire Earrings Set 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Orient” Ruby, Yellow Sapphire & Emerald Earrings Set 18K Gold & Silver Centers - Natural Oval Shapes Rubies 6.00 carat Natural Yellow Color Sapphires 3.00 carat ...
Ruby, Yellow Sapphire, Green Sapphire, 18k Gold, Silver
German Kabirski Thunder Gold Plated Silver Ring with Sapphire, Ruby & Tsavorite
Located in West Palm Beach, FL
Meet the Thunder Ring a bold barrel silhouette made in 925 sterling silver and plated with 18K gold, showcasing an exclusive "vitrail" composition of raw, unenhanced Gemstones: sapph...
Ruby, Tsavorite, Sapphire, Sterling Silver, Silver, Gold Plate, 18k Gold
14 Karat Gold Black Onyx and Pink Opal Round Beads Rubies Black Diamonds Ring
Located in Bangkok, TH
Unique and elegant Art Deco Style ring composed of a flat oval ring in solid 14 Kt yellow gold with 3 round black onyx beads with small faceted rubies set on one side and 3 pink op...
Black Diamond, Onyx, Opal, Ruby, 14k Gold, Yellow Gold
Ruby Diamond Flower Ring Vintage 14k Yellow Gold Sz 8.5 Wide Cigar Band
Located in Torrance, CA
Stylish ruby & diamond flower band (circa 1970s to 1980s) crafted in 14k yellow gold. 12 diamonds total an estimated 0.96 carats (estimated at I-J color and SI1-I1 clarity). Th...
Diamond, White Diamond, Ruby, Gold, 14k Gold, Yellow Gold
Rudi Cherny Circa 1970 Blue Enamel Bumble Bee Brooch in 18K Gold with Ruby Eyes
Located in Sherman Oaks, CA
This adorable little buzzer by Rudi Cherny is in 18 karat gold with blue enamel, a spiky ruff-like thorax, ruby eyes, and a tiny diamond, just for fun, on ...
White Diamond, Ruby, Diamond, Enamel, Yellow Gold, Rose Gold, 18k Gold, ...
Antique 18ct Gold Edwardian Ruby & Diamond Five Stone Ring
Located in Brighton, GB
Ruby & Diamond Ring 18ct Yellow Gold Hallmarked Birmingham Worn Date Letter Circa 1900 Lovely gypsy style ring. Set with alternating, natural rubies & diamonds. Mounted ...
Diamond, Ruby, Gold, 18k Gold
Bochic “Capri” Vintage Emerald Pink Topaz, Diamond & Tanzanite Ring Set 18K Gold
By Bochic
Located in New York, NY
Vintage Classic Italian Bochic “Capri” Pink Topaz, Diamond & Tanzanite Ring Set In 18K Gold & Silver Natural Red Pink Topaz , Radiant Cut Shape 7.00 carats Natural Multi Tanzanit...
Ruby, Tanzanite, Topaz, 18k Gold, Silver
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
Bochic “Capri” Vintage Natural Ruby & Diamond Retro Ring Set In 18K Gold & Silve
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Natural Ruby & Natural Diamond Retro Ring Set In 18K Gold & Silver Natural Oval Shape Cabochon Ruby 9.00 Carat Natural Oval Shape Rubies 16.00 Carat Natura...
Diamond, Ruby, 18k Gold, Silver
Art Deco Style White Baroque Pearls Ruby Cabs Gold Diamonds Blue Enamel Earrings
Located in Bangkok, TH
2 oval ruby cabochons are the upper part, the central part is gold full cut diamonds and blue enamel, at the bottom we have 2 white baroque pearls of 12 mm. in diameter. In 1978 our ...
Diamond, Pearl, Ruby, Gold, Enamel
Vintage Multi-Gemstone & Diamond Eternity Band in 18k Yellow Gold
Located in Bloomington, MN
Vintage Multi-Gemstone & Diamond Eternity Band in 18k Yellow Gold This vintage ring is crafted in 18k yellow gold and features a colorful assortment of bezel-set emerald, citrine, s...
Citrine, Diamond, Emerald, Garnet, Moonstone, Multi-gemstone, Ruby, Sapp...
1.75 Carat Oval Cut Burmese Ruby Diamond 14 Karat Yellow Gold Cluster Ring
By Roshe Jewels
Located in Los Angeles, CA
1.75 Carat Oval Cut Burmese Ruby Diamond 14 Karat Yellow Gold Cluster Ring Metal: 14 Karat Yellow Gold Primary Stones: Natural Ruby Accent Stones: Natural Diamonds Total Carat We...
Diamond, Ruby, 14k Gold, Yellow Gold
Carved Mother Of Pearl Drops Ruby Cab Emerald Cab Gold Dangle Earrings
Located in Bangkok, TH
Engraved pear shape Mother of Pearls measuring 15x72 mm with small round emerald cabochon suspended from a top Ruby Cabochon set in a solid 14k yellow gold bezel. In 1978 our work...
Emerald, Pearl, Ruby, Gold, 14k Gold, Yellow Gold
Tiny Ruby Necklace, Handcrafted Fine Jewelry, Delicate Statement Piece
Located in Westport, CT
Tiny ruby beads, 2mm, strung without interruption. No gold stations, no breaks, just a continuous line of red. Delicate but not faint. Ruby, 2mm (India) 14K gold clasp (US) 16" leng...
Ruby, 14k Gold
Coral, Rubies, Diamonds, Rose Gold and Silver Ring.
Located in Napoli, Campania
Beautiful ring in 9 kt rose gold and silver structure mounted with a central coral surrounded by four coral, diamonds and rubies. This elegant object combines solid 9 kt gold and sol...
Coral, Diamond, Ruby, 9k Gold, Rose Gold, Silver
$2,709Sale Price|30% Off
Bochic Capri 100ct Natural Ruby & 5ct Diamond Vintage Necklace Set, 18K Gold & S
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Natural Ruby & Diamond Necklace & Earrings Set 18K Gold & Silver Elegant and Classic Italian style Natural Ruby - Approx 100 Carats Natural Di...
Diamond, Ruby, 18k Gold, Silver
$260Sale Price|20% Off
New 1.14 Carat Red Ruby Cabochon & Diamond Cut Ruby Sterling Pendant Necklace
Located in Eagan, MN
This is such a beautiful necklace. It has a 7 x 5 x 3 ruby cabochon stone that totals 1.14 carats. The stone is from Madagascar. It is surrounded by diamond cut rubies. The pen...
Ruby, Sapphire, Sterling Silver
Bochic “Orient” Vintage Emerald, Ruby & Diamond Ring Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Orient” Vintage Emerald, Sapphire & Diamond Ring Set In 18K Gold & Silver Natural Red Ruby, Oval Cut 8 Carat Natural Green Emeralds from Zambia, Round Cut 2..40 C...
Ruby, Emerald, Diamond, Silver, 18k Gold
Bochic Capri Vintage Cuff Bracelet, 18K Gold & Silver, 25ct Ruby, Gems
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Ruby & Multi-Gem Cabochon Cuff Bracelet in 18K Gold & Silver 25 Carats of Natural Rubies, Amethyst & Fancy Color Sapphires A striking expression o...
Amethyst, Ruby, Topaz, Blue Topaz, 18k Gold, Silver
14K Yellow Gold Bezel-Set Ruby Stud Earrings, 0.75 ct Burma Rubies
By OGI Ltd
Located in New York, NY
Timeless elegance meets exceptional craftsmanship in these handcrafted 14K yellow gold Burmese ruby stud earrings. Featuring two perfectly matched natural Burma-mined rubies with a c...
Ruby, Gold, 14k Gold, Yellow Gold
Silvorra 1.07 Carat Ruby & Diamond Pavé Chevron Cocktail Ring in Sterling Silver
Located in New York, NY
This striking Ruby & Diamond cocktail ring showcases a captivating arrangement of marquise and square cut rubies totaling 1.07 carats. The six vibrant red gemstones are artfully ...
Diamond, Ruby, Silver, Sterling Silver
Natural Ruby Oval Cabochons Baroque White Pearls 14 Karat Yellow Gold Earring
Located in Bangkok, TH
Simple Chic Earrings with top part made of 2 Natural Ruby Oval Cabochons (11 x 10 mm ) set in 14 Kt yellow from which are attached 2 White Baroque Pearls of 12 mm in diameter In 197...
Pearl, Ruby, 14k Gold, Yellow Gold
$750Sale Price|50% Off
18K White Gold 1.10ct Vivid Red Oval Ruby & 0.02ct Diamond Stud Earrings
Located in เกาะสมุย, TH
A refined pair of 18k white gold studs featuring 1.10 carats of vivid oval‑cut rubies, each accented by a bright round brilliant diamond. The clean prong settings maximize light and ...
Diamond, Ruby, 18k Gold, White Gold
$422Sale Price / item|50% Off
Silvorra 925 Silver Peacock Motif 23.5ct Multi Gem Brooch Pendant with Diamonds
Located in New York, NY
This ornate 23.5 carat multi gem peacock brooch pendant is crafted in 925 sterling silver, showcasing a striking blend of Art Nouveau inspired elegance and regal motif design. Design...
Citrine, Diamond, Emerald, Ruby, Silver
14K Yellow Gold Diamond And Ruby Accented Snake Bypass Ring
Located in Antwerp, BE
Make a bold, symbolic statement with this captivating Snake Bypass Ring. Expertly cast in warm 14K yellow gold, this piece features a fluid, serpentine design that gracefully coils a...
Ruby, Diamond, Yellow Gold, 14k Gold
$1,417Sale Price|25% Off
Bochic Vintage Ruby & Emerald Earrings, 18K Gold & Silver, Circa 1992
By Bochic
Located in New York, NY
Bochic “Orient” Vintage Natural Red Ruby Bubbles & Green Emerald Earrings Set in 18K Gold&Silver Natural Rubies - 6 carat Origin Africa Natural Emeralds - 1.50 carat O...
Emerald, Ruby, 18k Gold, Silver
SeidenGang 18K Green Gold Dove Bracelet with Diamonds & Ruby Eyes
By SeidenGang
Located in Orlando, FL
Specifications Designer: Seidengang Origin: United States (New York) Metal: 18K green gold Weight: 87.1 grams Length: 6 3/4 inches Width: 1 inch Motif: Hand-detailed birds, architec...
Diamond, Ruby, 18k Gold, Yellow Gold
$1,800Sale Price|25% Off
Diamond Pear Ruby 3.40ct Halo Lariat Drop Earrings, 14k White Gold
By OGI Ltd
Located in New York, NY
Introducing our exquisite Diamond Pear Ruby 3.40 Carat Halo Lariat 14 karat White Gold 1.5 Inch Earrings – a breathtaking fusion of elegance and sophistication. Crafted with precisio...
Diamond, Ruby, Gold, 14k Gold, White Gold
Antique 15ct Yellow Gold, Victorian Ruby, Pearl & Diamond Ring Hallmarked 1892
Located in Brighton, GB
Antique Ring 18ct Yellow Gold Hallmarked Chester 1892 A late Victorian 15ct yellow gold ring, hallmarked Chester, 1892, set with a bright central diamond framed by two rubies an...
Ruby, Pearl, Diamond, Yellow Gold, 15k Gold
GIA Certified 2.01ct Oval Ruby & 1.53ct Diamond Cocktail Ring
Located in Hong Kong, HK
An absolute masterpiece of timeless elegance, this breathtaking cocktail ring showcases a magnificent 2.01-carat oval-cut vibrant red ruby, accompanied by a prestigious GIA certifica...
Diamond, Ruby, 18k Gold, Platinum
Set in 18K Gold, Zambian Emerald, Mozambique Ruby & Diamonds Engagement Ring
By JEWEL HUB
Located in Hong Kong, HK
A very gorgeous and beautiful, modern style. Emerald & Ruby Engagement Ring set in 18K White Gold & natural Diamonds. The weight of the Emerald is 2.05 carats. The Emerald is...
Diamond, Emerald, Ruby, 18k Gold
$1,100Sale Price|50% Off
18K Gold 0.82ct Oval Vivid Red Ruby & 0.30ct Diamond Sunburst Stud Earring
Located in เกาะสมุย, TH
A vivid pair of 0.82ct oval Thai rubies glow at the center of these 18k gold studs, framed by a 0.30ct diamond sunburst halo that adds crisp brilliance and vintage charm. Compact, el...
Diamond, Ruby, 18k Gold
Vintage Natural diamonds ruby peridot sterling silver wedding engagement ring
Located in Delhi, DL
Stunning real natural diamond ruby peridot sterling silver ring consists of : Metal- Silver Metal Purity- sterling silver Diamond- Natural diamonds Diamond origin- Natural earth min...
Diamond, Ruby, Peridot, Sterling Silver
Vintage Ruby and RBC Diamond Platinum Double Halo Ring Fine Estate Jewelry
Located in Montreal, QC
Simply Beautiful! Vintage Ruby and RBC Diamond Platinum Solitaire Double Halo Ring. Centering a securely nestled Hand set .96 Carat Oval Ruby. Surrounded by Round Brilliant Cut Diamo...
Diamond, Ruby, Platinum
Bochic “Capri” Vintage Ruby, Diamond & Pink Sapphire Ring Set 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Ruby, Diamond & Pink Sapphire Cocktail Ring Set in 18K Gold & Silver Gemstones Natural Ruby — 12 Carats Natural Pink Sapphire — 3 Carats Natural Diamonds — ...
Ruby, Pink Sapphire, Diamond, 18k Gold, Silver
Birthstone July Ruby Gold Bead Bracelet, Handcrafted Fine Jewelry
Located in Westport, CT
Ruby beads, faceted, in saturated red. No gold stations, no interruptions, just a continuous strand of color. The 14K clasp does the work quietly. Ruby, 2mm x 4mm (India) 14K gold c...
Ruby, 14k Gold, Gold
Bochic “Capri” Vintage Diamond, Emerald, Ruby & Sapphire Necklace Set
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Classic Italian Diamond, Emerald, Ruby & Sapphire Necklace Set In 18K Gold & Silver Chocker Necklace, Multi natural gem necklace Natural Diamonds -...
Diamond, Emerald, Ruby, Sapphire, 18k Gold, Silver
Genuine Opal 10ct Diamond Ruby Emerald Pendant in 14K Yellow Gold
Located in GOES, NL
Elevate your jewelry collection with this exquisite Ethiopian Opal pendant, beautifully crafted in luxurious 14K yellow gold. The pendant showcases a natural pear-shaped Ethiopian ...
Diamond, Opal, Emerald, Ruby, 14k 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.