Victorian Ruby, Sapphire, Emerald and Diamond Insect Brooch European, late 19th
Located in San Francisco, CA
A wonderfully eccentric Victorian insect brooch set with rubies, sapphire, emeralds, and rose cut diamonds in silver over gold. At the center rests a deep blue oval sapphire of excep...
Diamond, Emerald, Ruby, Sapphire, Sterling Silver
Natural Ruby & Diamond Ring 18k Gold
Located in jaipur, IN
You don't have to pay any tax to release the shipment. We pay tax and shipping expenses. This stunning, designer-made ring is crafted from 18-carat gold and features a ruby & Diamon...
Diamond, Ruby, 18k Gold
Pink Ruby Cabochon 18 Karat Yellow Gold Drop Earrings
Located in Mount Kisco, NY
Bright and colorful, this modest size earring pair displays four cheerful 3.5mm pink ruby cabochons on each that are bezel set in a fancy ornamental 18 karat yellow gold setting. Anc...
Ruby, Gold, 18k Gold, Yellow Gold
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
$2,100Sale Price|25% Off
Vintage Circa 1970s 18k Gold Natural Diamond And Ruby Decorated Ring
Located in Fatih/İstanbul, 34
💎 We Cover All U.S. Import Taxes USA — No Hidden Fees!💎 Vintage Circa 1970s 18k Gold Natural Diamond And Ruby Decorated Ring In very good condition. Total weight is 9 grams. Tot...
Diamond, Ruby, 18k Gold
Mikimoto 18K Yellow Gold Oval Ruby and Diamond Band Ring
By Mikimoto
Located in Philadelphia, PA
This elegant Mikimoto ring features a striking row of three vibrant, oval-cut rubies beautifully interspersed with pairs of brilliant-cut diamonds, all securely prong-set in a classi...
Diamond, Ruby, 18k Gold, Yellow Gold
Ruby Birthstone Heart Pendant White Enamel 14 Karat Gold by Meghna Jewels
Located in Hoffman Estate, IL
From the "Home Is Where Your Heart Is" Collection Inspired by the feeling of love, comfort, and belonging, the "Home Is Where Your Heart Is" Collection celebrates the memories, mile...
Diamond, Ruby, 14k Gold, Gold, Enamel
Art Deco Style 14k Gold Rubies Diamonds Black Enamel Carved Jade Dangle Earrings
Located in Bangkok, TH
In these classic Art Deco Style earrings the tops are 2 parts in 14 kt.white gold, 16 round full cut diamonds,small round Ruby cabs and black enamel ,in the lower parts we have 2 Engraved Burma Jade flat drops measuring 12 x 36...
Diamond, Jade, Ruby, 14k Gold, Enamel
Natural Ruby Diamond Earrings 14k Gold 14.12 TCW Certified
Located in Brooklyn, NY
Natural Ruby Diamond Earrings 14k Gold 14.12 TCW Certified $6,950 604478 This is a Unique Custom Made Glamorous Piece of Jewelry! Nothing says, "I Love you" more than Diamonds and ...
Diamond, Ruby, 14k Gold
$1,200Sale Price|20% Off
Bochic “Capri” Vintage Sapphire & Multi Tourmaline Earrings Set In 18K Gold & Si
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Blue Sapphire & Multi Pastel Tourmaline Earrings Set In 18K Gold & Silver Natural Oval Shape Sapphires from Sri Lanka 12 carats Natural Pastel Co...
Ruby, Sapphire, Blue Sapphire, Tourmaline, 18k Gold, Silver
Treasures of Egypt Multi Gemstones Antique Inspired Bracelet in 18k White Gold
Located in Bangkok, TH
A rare and incredible Egyptian revival color gemstone and diamond wide bracelet. Compose of four main panels, each panel depicting ancient Egyptian symbols. The bracelet is adorned w...
Blue Sapphire, Ruby, Onyx, Multi-gemstone, Emerald, Diamond, White Gold,...
Bochic “Orient” Vintage Ruby, Sapphire & Multi Gem Ring - 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Orient” Vintage Ruby, Sapphire & Multi Gem Ring - 18K Gold & Silver Natural Oval Ruby 15.50 carats Natural Multi-Gemstones (Emeralds, Topaz, Tourmalines, Multi Sapphires) 8....
Citrine, Ruby, Pink Sapphire, Yellow Sapphire, Topaz, Tourmaline, Blue T...
Modern 18K Gold Necklace with Rubies and Diamond Pavé Bow Motif
Located in Roma, RM
This contemporary 18K gold necklace offers a refined balance of sculptural design and fine gemstone work, conceived for collectors who appreciate modern statement jewels with strong ...
Diamond, Ruby, 18k Gold
$250Sale Price|50% Off
Vintage 2ct Squared Ruby & Quartz Sterling Silver Band Ring, Size 7.75
Located in เกาะสมุย, TH
A striking vintage statement band crafted in solid sterling silver, this architectural ring features six vertical columns of richly colored square‑cut rubies, totaling approximately ...
Quartz, Ruby, Sterling Silver
Van Cleef & Arpels Invisible-Set Ruby and Diamond Earrings 18K Yellow Gold
Located in Fairfield, CT
Van Cleef & Arpels Invisible-Set Ruby and Diamond Earrings 18K Yellow Gold These Van Cleef & Arpels earrings are made in 18K yellow gold and feature VCA's signature invisible-set ru...
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
Eagle Ruby Pearl Pendant 14 Karat Gold Antique Belle Epoque Victorian
Located in New York, NY
A wonderful antique Belle Epoque, Victorian pendant in the form of a beautifully modeled eagle set with a Ruby eye and a Pearl in its beak, in 14 Karat Gold. We love our antique animal and bird jewelry...
Pearl, Ruby, 14k Gold
Vintage 18K Yellow Gold Ruby and Diamond Cocktail Ring with GIA Certificate
Located in Great Neck Plaza, NY
A striking vintage 18K yellow gold statement ring centered with an oval ruby weighing approximately 1.80 carats. The ruby measures approximately 8.70 x 7.75 x 3.20 mm and is set in a...
Diamond, Ruby, 18k Gold, Yellow Gold
10ct Gold 1970s Diamond Emerald, Amethyst, Ruby, Sapphire and Topaz Cluster Ring
Located in Brighton, GB
Vintage Dearest Ring 10ct Gold Circa 1970s Makers Mar S A This 10ct yellow gold vintage dearest acrostic ring is a true beauty. It features a daisy-...
Amethyst, Diamond, Emerald, Ruby, Sapphire, Topaz, Gold, 10k Gold
Oval Ruby Cabs Flat Baroque Pearls 14 Karat Yellow Gold Stud Earrings
Located in Bangkok, TH
Simple chic stud earrings with a pair of Oval Ruby Cabs set in solid 14 Kt. yellow gold on the top and 2 Round Flat Fresh water pearls 15 mm in diameter with ...
Pearl, Ruby, Gold, 14k Gold
Ruby Earrings set in 18K White Gold Settings
Located in Bangkok, TH
Ruby 14.94 carats Earrings set in 18K White Gold Settings Width: 1.6 cm Length: 5.0 cm Total Weight: 13.54 grams "We first opened doors in 1980 when it was then situated in the vi...
Ruby, 18k Gold, White Gold
Antique 14ct Gold 1920’s, Sapphire, Ruby & Emerald Three Leaf Clover Ring
Located in Brighton, GB
Antique Clover Ring 14ct Gold Tested Circa 1920’s Pretty, antique three leaf clover ring. Set with a natural sapphire, ruby & diamond. The...
Emerald, Ruby, Sapphire, Gold, 14k Gold
GRS No Heat 5.50ct Ruby Diamond Platinum Three Stone Ring
Located in Miami, FL
This extraordinary three-stone ring is crafted in luxurious platinum and centered with a remarkable GRS-certified natural Siam (Thai) ruby weighing approximately 5.50 carats. The cus...
Diamond, Ruby, Platinum
4.30Ct Natural Ruby and Diamond 14K Solid Yellow Gold Pendant
Located in Los Angeles, CA
4.30Ct Natural Ruby and Diamond 14K Solid Yellow Gold Pendant Natural Red Ruby Weight is: Approx. 3.80 Carats Red Ruby Measures: 11 x ...
Diamond, Ruby, 14k Gold, Yellow Gold
Ruby with Diamond Necklace Set in 18 Karat Gold Setting
Located in Bangkok, TH
Ruby 42.20 carats with Diamond 10.0 carats Necklace set in 18 Karat Gold Settings Width: 1.7 cm Length: 43.4 cm Total Weight: 137.31 grams "We first opened doors in 1980 when it ...
Diamond, Ruby, Gold, 18k Gold
$4,384Sale Price|20% Off
Ruby Ring Set in 18k Rose Gold Settings
Located in Bangkok, TH
Ruby 6.08 carats Ring set in 18K Rose Gold Settings Width: 1.9 cm Length: 2.7 cm Ring Size: 54 Total Weight: 9.69 grams "We first opened doors in 1980 when it was then situated i...
Ruby, 18k Gold, Rose Gold
Vintage Jade, Ruby and Pearl Gold Bumble Bee Bug Brooch Pin
Located in Montreal, QC
Simply Beautiful! Vintage Gemstone Gold Bumble Bee Brooch. Hand set with Jade, Ruby and Pearl. Hand crafted 14K Gold Gold mounting. Measuring approx. 1.4” L x 1.1” W. More Beautiful ...
Jade, Pearl, Ruby, Gold, 14k Gold, Yellow Gold
$1,859Sale Price|35% Off
Bochic “Vintage Retro” Natural Rubies & Diamonds Set In 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Vintage Retro” Natural Rubies from Africa & Diamonds Set In 18K Gold & Silver Can wear as an anklet as well Natural Rubies - 14 Carats Natural Diamonds - 8 Carat...
Diamond, Ruby, 18k Gold, Silver
Rubies, Diamonds, Rose Gold and Silver Ring.
Located in Napoli, Campania
Amazing ring in 9 kt rose gold and silver structure mounted with diamonds and rubies. This elegant object combines solid 9 kt gold and solid 800 silver in a sophisticated design. The...
Ruby, Diamond, Silver, Rose Gold, 9k Gold
Bochic ‘Capri’ Vintage Natural Ruby, Sapphire & Emerald Cuff In 18K Gold & Silve
By Bochic
Located in New York, NY
Bochic ‘Capri’ Vintage Natural Ruby, Blue Sapphire & Emerald Cuff In 18K Gold & Silver Bochic ‘Capri’ Vintage Ruby, Emerald & Sapphire Cuff — 18K Gold & Silver Nat...
Emerald, Ruby, Sapphire, Blue Sapphire, 18k Gold, Silver
Antique 9.20 Carat Ruby 9.78 Carat Diamond 9k Yellow Gold Necklace Circa 1880
Located in Jesmond, Newcastle Upon Tyne
A magnificent, stunning, fine and impressive antique Victorian 9.20 carat ruby and 9.78 carat diamond, 9 karat yellow gold and silver set necklace; part of our Victorian ruby jewelry collection. This magnificent, fine and impressive antique Victorian ruby necklace...
Diamond, Ruby, Yellow Gold, Silver
Antique Ruby, Diamond And 18 Karat Gold Navette Cluster Ring, Chester 1901
Located in London, GB
A Victorian ruby, diamond and gold navette shaped cluster ring, with a cushion shaped faceted ruby, in the centre of two oval rubies, surrounded by fourteen old-cut diamonds, in a cl...
Diamond, Ruby, 18k Gold
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
18K Yellow Gold Pearl, Ruby, and Diamond Necklace, Contemporary Design
Located in Monte Carlo, MC
Claris-A offers this pearl, ruby, and diamond 18k yellow gold necklace, composed of a continuous strand of pearls measuring approximately 5.5–6 mm in diameter, finished with a sculpt...
Diamond, Pearl, Natural Pearl, Ruby, Gold, 18k Gold, Yellow Gold
White South Sea Pearl, Ruby, Diamonds Earrings in 14/18 Solid Yellow Gold
Located in Naples, NY
These earrings are real eye-catchers! Long, large South Sea Pearls ( 15.3mm x 17.35mm ) and a wonderful flower with a Natural Ruby give the earring a feminine glow. Pendant: Genuine 14K GOLD diamond...
Diamond, South Sea Pearl, Ruby, 14k Gold, 18k Gold, Yellow Gold
6.05 Carat Natural Red Ruby and Diamond 14 Karat Solid Yellow Gold Necklace
Located in Los Angeles, CA
6.05Ct Natural Red Ruby and Diamond 14K Solid Yellow Gold Necklace Amazing looking piece! Stamped: 14K Natural Oval Cut Ruby Weights: 6.00 Carats Ruby Measures: 12 x 10mm Total ...
Diamond, Ruby, 14k Gold, Yellow Gold
Eighteen Karat Yellow Gold Peacock Ring with Two Carats Blue Sapphire and Ruby
Located in Berlin, DE
This contemporary engagement Peacock ring is in 18 karat yellow gold with natural oval cut blue sapphire, 2,55 carats, 0,35x0,3 inches / 9x7,8 mm, and round ruby. The ring is easy to...
Ruby, Sapphire, Blue Sapphire, Gold, 18k Gold, Rose Gold, Yellow Gold
8.70 Carats Natural Red Ruby and Diamond 14K Solid Yellow Gold Ring
Located in Los Angeles, CA
8.70 Carats Impressive Natural Red Ruby and Diamond 14K Yellow Gold Ring Suggested Replacement Value $7,000.00 Total Natural Oval Red Ruby Weight is: Approx. 2.50 Carats Ruby Mea...
Diamond, Ruby, 14k Gold, Yellow Gold
Brutalist Cuff Bracelet Chakra White Diamond Emerald Sapphire Gold Plated
By J DAUPHIN
Located in Los Angeles, CA
Natural Rainbow Gemstone Seven Chakra Stud Cuff Bangle 14k Gold Plated Designer: J Dauphin Title: New Dimension The New Dimension Stud Cuff is a sculptural statement piece handcraft...
Tanzanite, Sapphire, Ruby, Emerald, White Diamond, Brass, Yellow Gold, 1...
1937 Ring natural Ruby Diamonds solid 18K Gold Platinum ØUS7.25/ 2.1gr
Located in SE
Art - Deco period three stones Ruby and Diamonds Ring hand- made in 1937. This design with secure claw and bezel clusters is perfect for everyday/ permanent wear. Swedish hallmarks ...
Diamond, Ruby, 18k Gold, Platinum
Ruby with Diamond Earrings Set in 18 Karat Gold Settings
Located in Bangkok, TH
Ruby 5.72 carats with Diamond 3.37 carats Earrings set in 18 Karat Gold Settings Width: 1.9 cm Length: 2.0 cm Total Weight: 14.84 grams "We first opened doors in 1980 when it was...
Diamond, Ruby, Gold, 18k Gold
Carrera Y Carrera 18 Karat Yellow Gold Butterfly Mask Ring with Diamonds
Located in New York, NY
Carrera Y Carrera has built its famous name on figurative designs, an obsession with surface finishes, and a compelling way of seeing beauty in art and nature. This 18 karat yellow g...
Diamond, Ruby, 18k Gold, Yellow Gold
1.70 Carat Natural Pear Cut Ruby Diamond Yellow Gold Engagement Ring
By DGI
Located in Los Angeles, CA
1.70 Carat Natural Pear Cut Ruby Diamond Yellow Gold Engagement Ring Metal: 14 Karat Yellow Gold Primary Stones: Natural Ruby Accent Stones: Natural Diamonds Total Carat Weight: ...
Diamond, Ruby, 14k Gold, Yellow Gold
$962Sale Price / item|44% Off
Ruby ring in 14k gold. Oval ruby ring. Solitaire ring with ruby.
Located in Istanbul, TR
Ruby ring in 14k gold. Oval ruby ring. Solitaire ring with ruby. Ruby engagement ring. Genuine ruby ring. Red gemstone ring. Metal: 14k solid gold W...
Amethyst, Diamond, Ruby, 14k Gold
Ruby with Diamond Earrings Set in 18 Karat Gold Settings
Located in Bangkok, TH
Ruby 0.56 carat with Diamond 0.12 carat Earrings set in 18 Karat Gold Settings Width: 0.6 cm Length: 0.7 cm Total Weight: 2.73 grams "We first opened doors in 1980 when it was t...
Diamond, Ruby, Gold, 18k Gold
Bochic Capri Vintage Ruby & Blue Sapphire Bracelet, 18K Gold & Silver
By Bochic
Located in New York, NY
Bochic “Capri” Vintage Ruby & Blue Sapphire Bracelet in 18K Gold & Silver A richly detailed and visually captivating bracelet from Bochic’s iconic “Capri” Traveling Collection, this...
Ruby, Blue Sapphire, 18k Gold, Silver
South Sea Pearl, Diamond and Ruby Bird Pendant set in 14K White Gold Settings
Located in Bangkok, TH
South Sea Pearl, Diamond 0.53 carat and Ruby 0.04 carat Pendant set in 14K White Gold Settings (chain not included) Width: 3.3 cm Length: 5.2 cm Total Weight: 12.00 grams "We firs...
Diamond, South Sea Pearl, Ruby, 14k Gold, White Gold
Rare Vintage Van Cleef & Arpels Ruby Diamond 18k Yellow Gold Bypass Band Ring
Located in Birmingham, GB
Rare Vintage Van Cleef & Arpels Ruby And Diamond 18k Yellow Gold Bypass Band Ring. This beautifully made bypass ring features 2.5mm pavé round brilliant cut natural diamonds and cha...
Diamond, White Diamond, Ruby, Gold, 18k Gold, Yellow Gold
Natural Amethyst Round Carved Buttons Ruby Cabs 14k Yellow Gold Dangle Earrings
Located in Bangkok, TH
Simple chic earrings composed of 2 Natural Amethyst Carved Buttons of 16 mm in diameter with a small Ruby cabochon in the center suspended by a ...
Amethyst, Ruby, 14k Gold, Yellow Gold
Vintage 18ct Gold and Enamel Brooch with Sapphire, Emerald and Ruby Circa 1960
Located in Brighton, GB
Vintage Enamel Flower Brooch 18ct Gold Makers Mark BHB Circa 1960 A vibrant mid-century brooch in 18ct yellow gold, modelled as a stylised trio of enamelled flowers. Each bloom i...
Emerald, Ruby, Sapphire, Gold, 18k Gold, Enamel
$283Sale Price|20% Off
Natural diamonds Pearl Ruby oxidized silver hinged bracelet
Located in Delhi, DL
Diamond- 0.75cts Diamond type: Pave diamonds Diamond color: White Metal: Silver Metal Purity: Sterling Silver or 92.5% Pure silver Color of Metal- Oxidized silver Gemstone= Pearl an...
Diamond, Pearl, Ruby, Silver, Sterling Silver
Antique 14K Gold Snake Bracelet with Pearls & Ruby Eyes, Circa 1860
Located in North Hollywood, CA
This amazing 14K yellow gold snake bracelet is special. It is a heavy weight gold chain with a gorgeous snake head decorated with Pearls and Ruby eyes and a heart locket hangs from ...
Pearl, Ruby, 14k Gold
Large Art Nouveau Antique Guilloche Enamel Locket Pendant
Located in Chicago, IL
Circa 1910 This very large ornate 14K gold locket pendant is designed in Art Nouveau taste of the period. The pendant is embellished with excellent bluish white guilloche enamel. T...
Diamond, White Diamond, Ruby, Gold, 14k Gold, Enamel
$2,053Sale Price|20% Off
Ruby Sapphire Emerald White Stone Diamond Gold Earrings
Located in Napoli, Campania
White stone earrings in 14kt yellow and white gold embellished with rubies, emeralds and blue sapphires.On the top there are two flowers covered i...
Diamond, Emerald, Ruby, Blue Sapphire, 14k Gold, White Gold, Yellow Gold...
Ruby Cross Pendant Set in 18 Karat Gold Settings
Located in Bangkok, TH
Ruby 13.50 carats Cross pendant set in 18 Karat Gold Settings (chain not included) Width: 5.1 cm Length: 8.0 cm "Since we first opened doors in 1980 our store was then situated i...
Ruby, Gold, 18k Gold
Exquisite 4.20 Carat Red Ruby and Diamond 14k Solid Yellow Gold Stud Earrings
Located in Los Angeles, CA
Exquisite 4.20 Carats Red Ruby and Diamond 14K Solid Yellow Gold Stud Earrings Amazing looking piece! Total Natural Round Cut White Diamonds Weight: Approx. 0.20 Carats (color G-H ...
Diamond, Ruby, 14k Gold, Yellow Gold
23.20Ct Natural Ruby and Diamond 14K Solid Yellow Gold Earrings
Located in Los Angeles, CA
23.20Ct Natural Ruby and Diamond 14K Solid Yellow Gold Earrings Total Natural Rubies Weight: Approx. 21.90 Carats Natural Ruby Measures: Approx. 13 x 11 mm Ruby Treatment: Fractu...
Diamond, Ruby, 14k Gold, Yellow Gold
14kt Yellow Gold Serpent Bracelet with Rubies & Diamonds, 1980
Located in Marcianise, IT
Extraordinary rigid bracelet in the shape of a serpent, crafted from 14 karat yellow gold and 800 thousandths silver — a true masterpiece of artisanal fine jewelry. The refined, sinu...
Ruby, Diamond, 14k Gold, Yellow Gold, Silver
$962Sale Price / item|44% Off
3 gemstone ring. Tourmalines and ruby gold ring. Multicolor gemstones ring.
Located in Istanbul, TR
3 gemstone ring. Tourmalines and ruby gold ring. Open ended ring. Colorfull ring. October birthstone ring. Tourmaline gold ring. Genuine tourma...
Ruby, Tourmaline, Gold, 14k Gold
5.87 Ct GRS Certificate Natural Afghanistan No heat Red Color Eye clean
Located in bangkok, TH
RMA122 GRS Certificate Natural Unheated Ruby Afghanistan Red color eye clean Gemstone GEM DESCRIPTION Species: Natural Corumdum Variety: Natural Ruby Unheated Weight: 5.87ct C...
Ruby
Ruby, Cabochon Ruby and Diamond Earrings Set in 18 Karat Gold Settings
Located in Bangkok, TH
Ruby 17.19 carats, Cabochon Ruby 0.86 carat and Diamond 1.51 carats Earrings set in 18 Karat Gold Settings Width: 1.8 cm Length: 2.3 cm Total Weight: 19.58 grams "We first opened...
Diamond, Ruby, Gold, 18k 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.