18ct Yellow Gold Ruby & Diamond Pendant, 1.67ct Natural Ruby
Located in London, GB
A beautiful pendant in solid 18ct yellow gold, set with a striking combination of natural diamond, and natural pear shape ruby. The design balances brilliance and colour, creating a ...
Diamond, Ruby, 18k Gold, Yellow Gold
Ruby Diamond Teddy Bear Brooch Pin 1.65ct 14K White Gold With Ruby Red Eyes
Located in New York, NY
Ruby Diamond Teddy Bear Brooch Pin 1.65ct 14K White Gold Estate Style with Ruby Red Eyes Diamond Weight: 1.65 Carats Ruby Weight: 0.10 Carats A charming and collectible 14K white g...
Diamond, Ruby, 14k Gold, White Gold
Antique No-Heat Ruby Bow Brooch
Located in New York, NY
Created in the 1870s, this no-heat ruby and diamond "Sévigné" bow brooch is set in silver-topped gold.
Ruby, Gold, Silver
14K Gold Ruby Dome Ring 1.80 Ct Natural Ruby Dome Ring Emerald Ruby SapphireRing
Located in Jaipur, IN
Ruby Dome Ring, Emerald Sapphire Ring, 14K Yellow Gold Statement Ring, Gemstone Cocktail Ring, Zambian Emerald Ring, Ruby Emerald Sapphire Jewelry, Luxury Dome Ring, Handmade Fine Je...
Emerald, Ruby, Blue Sapphire, 14k Gold, Yellow Gold
Ruby diamond earrings 14KT gold Halo ruby studs
Located in Boca Raton, FL
We are connoisseurs of jewelry with high quality standards and passion for unique jewelry workmanships.
Diamond, Ruby, Gold, 14k Gold
$18,000
Ruby & Diamond Bracelet
Located in New York, NY
Ruby & Diamond Bracelet, with 132 square cut rubies & 96 round cut diamonds set in platinum. Ruby Weight: approximately 7.50 carats Diamond Weight: approximately 5.03 carats Measur...
Diamond, Ruby, Platinum
18K Gold Ruby and Diamond Stud Earrings, 1.02ct Ruby
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, STUDS-SHAPED earring is crafted from 18-carat gold and feature...
Ruby, 18k Gold
$56,000Sale Price|20% Off
Tiffany & Co. Ruby Bow Rubies Motif Bracelet
By Tiffany & Co.
Located in Chicago, IL
An elegant Tiffany & Co. bracelet crafted in 18K yellow gold with a refined polished finish. The design features fine gold wire elements, measuring approximately 16–22 mm in leng...
Diamond, White Diamond, Ruby, Gold, 18k Gold, Yellow Gold
Appraised Ruby Diamond Earrings 18K White Gold 1.60ctw Pear Rubies
Located in West Hempstead, NY
Elevate your jewelry collection with these exquisite 18kt White Gold Ruby and Diamond Earrings.
Diamond, Ruby, 18k Gold, White Gold
$10,329Sale Price|50% Off
Eros Ruby Ring – 1.56ct Untreated Ruby (Swiss Certified)
Located in London, GB
The Eros ruby ring is stunning and elegant. The ring features an unheated 1.56 carat pinkish-red ruby, surrounded by a halo of diamonds that elevates the beauty of the ruby. Swiss ce...
Ruby, Diamond, Rose Gold, 18k Gold
3.34ct Ruby Red Ruby Ring — GRS & C. Dunaigre Certified
Located in Ramat Gan, IL
A truly captivating natural ruby ring featuring a 3.34-carat ruby of rich, vivid ruby-red color, accompanied by prestigious GRS and C. Dunaigre certifications. The ruby is completely...
Ruby, Platinum
Exquisite 14k Gold Ruby and Diamond Bracelet, 16.81ct Rubies
Located in jaipur, IN
You don't have to pay any tax to release the shipment. We pay tax and shipping expenses. This exquisite bracelet is masterfully crafted in 14-carat gold, featuring rows of vibrant r...
Diamond, Ruby, 14k Gold
$4,800Sale Price|20% Off
Matching ruby pair untreated 6.5x4.5mm ruby oval natural pinkish red
Located in Jupiter, FL
NATURAL RUBY(S) Clarity/Color: Slightly Icluded/Pinkish Red Cut: Oval Measuring: 6.5x4.5mm Pair WHAT YOU GET AT STAMPAR JEWELERS: Stampar Jewelers, located in the heart of Jupiter,...
Ruby
$16,750
Diamond and Ruby Bow Brooch
Located in New York, NY
Diamond and ruby bow brooch in 18k yellow gold. Center of the brooch set with 0.40 - 0.50 carat trillion cut diamond, Bow set with sixty five round brilliant cut diamonds and forty...
Diamond, Ruby, 18k Gold
Ruby Diamond Gold Brooch Pin
Located in New York, NY
18k gold brooch, with rubies and approx. 0.25ctw in diamonds. Brooch is 55mm x 40mm. Marked 18k 750. Weight - 23.2 grams.
Diamond, Ruby, Gold
Gold Ring with Star Ruby Untreated Ceylon Star Ruby
Located in Berlin, BE
Elegant 14k yellow gold ring featuring a natural, untreated star ruby from Sri Lanka (Ceylon), approximately 2.5ct. The stone’s vivid color and distinct star effect offer a subtle, c...
Ruby, Star Ruby, Gold, 14k Gold, Yellow Gold
Large ruby pendant necklace 14KT yellow gold 8mm ruby
Located in Boca Raton, FL
Large pendant necklace with 8mm ruby in the center, the ruby is a stunning red color, the ruby is clarity enhanced which means that the ruby has been through a process where inclusio...
Ruby, 14k Gold, Yellow Gold
18K Gold Green Garnet Turtle Brooch with Shell Layer
By Althoff Jewelry
Located in Hong Kong, HK
As a creature that has survived the prehistoric era, they have a connection to the planet that stretches far back to the beginning of life itself. Althoff Jewelry’s Turtle Brooch is...
Garnet, Ruby, Yellow Sapphire
Ruby Diamond Gold Pendant Brooch
Located in New York, NY
18k white and yellow gold pendant brooch, set with two rubies and apron. 0.90ctw in diamonds. Brooch is 56mm x 28mm. Marked 750. weight - 12 grams.
Diamond, Ruby, Gold
Onyx Ruby and Diamond Brooch
Located in New York, NY
Onyx Ruby and Diamond Brooch Pendant A round onyx brooch set with square-cut rubies and round-cut diamonds Approximate Diameter: 2.75 " Metal Type: White Gold
Diamond, Onyx, Ruby, White Gold
Hermes Gold Ruby Bird Vintage Brooch
Located in Greenwich, CT
Tweet tweet sings this golden and very rare Hermes Paris vintage bird on branch brooch. With a ruby eye and realistically engraved feathers, this collectible bird will bring calming...
Ruby, Gold, 18k Gold
Vintage 1970s 18k Yellow Gold Ruby Diamond Bracelet, 1.00ct Rubies
Located in Beverly Hills, CA
Elegant, colorful, and timeless, it is perfect for someone who appreciates classic ruby and diamond jewelry, warm yellow gold, and refined 1970’s design.
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
Ruby and Diamond Arrow Brooch
Located in New York, NY
Ruby and Diamond Arrow Brooch A white gold brooch shaped as a arrow and hexagon Approximate Diamond Weight: 1.60 carats Approximate Length: 2.37 inches Metal Type: 18 karat gold
Diamond, Ruby, 18k Gold
$148,500
Belle Époque Diamond Ruby Brooch
Located in New Orleans, LA
Radiant and refined, this exceptional garland brooch is a masterful expression of elegance. Sparkling circular and single cut diamonds form flowing garlands, punctuated by vivid cali...
Diamond, Ruby, 18k Gold, Platinum
Natural Star Ruby 18K Rose Gold with Diamond Pendant, Burmese Ruby
Located in Kowloon, HK
◆ GEMSTONE: Natural Star Rubies, diamonds ◆ PRECIOUS METAL: 18K Rose Gold ◆ WEIGHT OF STAR RUBY: 0.4 Ct ◆ SIZE OF STAR RUBY: 4.8 x 4.2 mm ◆ WEIGHT OF GOLD: 1.06 g ◆ WEIGHT OF DIAMO...
Diamond, Ruby, Star Ruby, 18k Gold, Rose Gold
1.74 Carat Coloured stone and Diamond Earrings in 950 Platinum
By Rewa Jewellery
Located in Bangkok, TH
These earrings feature rubies weighing 0.60 carats, blue sapphires weighing 0.68 carats, and emeralds weighing 0.46 carats, creating a vibrant color combination.
Diamond, Ruby, Emerald, Sapphire, Platinum
$36,800
Ruby and Diamond Tassel
By Diamond Scene New York
Located in New York, NY
An important Ruby and Diamond Tassel Necklace 175 carats of fine Ruby and 8.38 carats of white round brilliant diamonds. 30 inch removable diamond by yard chain, set in white gold.
Diamond, Ruby
$1,250
14k Ruby Ring
By Rose and Choc
Located in Wallingford, CT
Five stone ruby on 14k gold. Metal: 14k Yellow Gold Stone: Ruby Stone Size: 1.75mm Metal: 14K Yellow Gold
Ruby, 14k Gold
$540Sale Price / item|20% Off
Sterling Silver Rubies "Owl" Cufflinks
By Gregory Mikaelian & Sons, Inc.
Located in Los Angeles, CA
Sterling Silver Rubies "Owl" Cuff links, containing 2 round rubies weighing .24cts.
Ruby, Sterling Silver
Ruby, Diamond, Cabochon Ruby, Cabochon Blue Sapphire Bird Brooch 18 Karat Gold
Located in Bangkok, TH
Ruby 18.46 carats, Diamond 2.08 carats, Cabochon Ruby 0.46 carat with Cabochon Blue Sapphire 0.29 carat Brooch set in 18 Karat Gold Setting Width: 3.7 cm Length: 7.0 cm "Since w...
Diamond, Ruby, Blue Sapphire, Gold, 18k Gold
Ruby Pearl and Diamond Brooch
Located in New York, NY
Ruby Pearl and Diamond Brooch A brooch featuring oval cut rubies, a marquise cut ruby and round cur diamonds, suspending a gray pearl Measurements: 2.5" long Ruby Weight: 4.20 c...
Diamond, Pearl, Ruby, 14k Gold, White Gold
$160,000Sale Price|20% Off
Burmese Ruby and Diamond Drop Earrings, 11.8ct Rubies, 18k Gold
By EstatebyJR
Located in New York, NY
A captivating pair of earrings featuring exquisite 11.8-carat natural unheated Burmese rubies oval rubies, their rich red hue commanding attention. Encircled by 4.34 carats of round,...
Diamond, Ruby, 18k Gold
Platinum Ruby & Diamond Double Clip Pins
Located in Great Neck Plaza, NY
Command attention with this iconic pair of platinum, ruby, and diamond double clip pins, a true testament to 1950s high jewelry design, recently worn by Elaine Welteroth to the 2025 ...
Diamond, Ruby, Platinum
$9,800
Ruby & Diamond Bracelet
Located in New York, NY
Ruby & Diamond Bracelet Round cut rubies & diamonds set in 18K White Gold 42 rubies approximately 5 carats 21 diamonds approximately 7 carats Measurements: 7" long
Diamond, Ruby, 18k Gold
Appraised 18kt White Gold Ruby and Diamond Earrings - 1.60ctw Pear Rubies
Located in West Hempstead, NY
Elevate your jewelry collection with these exquisite 18kt White Gold Ruby and Diamond Earrings.
Diamond, Ruby, 18k Gold, White Gold
Trabert, Hoeffer, and Mauboussin 18k Gold Diamond Gemstone Jewelry Set
By Trabert & Hoeffer Mauboussin
Located in Sherman Oaks, CA
Gorgeous Brooch and Earring Setby Trabert, Hoeffer, and Mauboussin Features Gemstone Floral Motifs Set in 18k Yellow Gold with White Gold Accents Gemstone Accents Include Rubies, Sap...
Diamond, Ruby, Blue Sapphire, 18k Gold
$165,000
Ruby and Diamond Necklace
By Diamond Scene New York
Located in New York, NY
An exceptionally made Ruby and Diamond Necklace. 33.29 carats of certified Intense Red oval Ruby. 44.36 carats of white round, pear and marquise cut diamonds. Set in 18k white...
Diamond, Ruby
14K White Gold Ruby and Diamond Halo Ring, 0.82ct Ruby
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 14-carat white gold and features a RUBY ge...
Diamond, Ruby, 14k Gold
Retro Aquamarine & Ruby Brooch
Located in New York, NY
1940's Clip with a Faceted Aquamarine Embellished by a corsage of ribbons & leaves and sprigs of Rubies Set in 14kt Rose Gold. Ca. 1940. Aquamarine - approximately 25 cts.
Aquamarine, Ruby, Rose Gold, 14k Gold
14K White Gold Ruby & Diamond Earrings 2.90CT Rubies & 1.25CT Diamonds ISTJ
Located in New York, NY
Ruby earrings are a timeless statement of elegance and color.
Diamond, Ruby, 14k Gold, White Gold
7.00ct Ruby Diamond Gold Cat Pin
Located in New York, NY
This is a fabulous 18k yellow gold cat pin. The pin is set with lovely round cut rubies that weigh approximately 7.00ct. The rubies are accentuated by sparkling round cut diamond acc...
Ruby, 18k Gold
$960Sale Price|20% Off
Ruby & Diamond Platinum Ring
Located in Bloomington, MN
Ruby & Diamond Platinum Ring This ring is crafted in 900 platinum and features a prong-set red ruby at the center, framed by a balanced mix of round and baguette diamonds. The r...
Diamond, Ruby, Platinum
Ruby with Diamond and Ruby Earrings set in 18K Gold Settings
Located in Bangkok, TH
Ruby 3.89 carats with Diamond 0.84 carat and Ruby 4.73 carats Earrings set in 18K Gold Settings Width: 1.6 cm Length: 1.8 cm Total Weight: 11.39 grams "We first opened doors in 19...
Diamond, Ruby, 18k Gold
Natural 18K Gold Ruby and Diamond Halo Ring, 0.66ct Ruby, New
Located in jaipur, IN
You don't have to pay any tax to release the shipment. We pay the tax and shipping expenses. This stunning, designer-made ring is crafted from 18-carat gold and features a gemstone ...
Diamond, Ruby, 18k Gold
Stunning 18K Gold Ruby and Diamond Halo Ring, 3.67ct Ruby, New
Located in jaipur, IN
You don't have to pay any tax to release the shipment. We pay the tax and shipping expenses. This stunning, designer-made ring is crafted from 18-carat gold and features a gemstone ...
Ruby, Diamond, 18k Gold
Ruby pendant wine glass 14KT yellow gold NAURAL rubies
Located in Boca Raton, FL
We are connoisseurs of jewelry with high quality standards and passion for unique jewelry workmanships.
Ruby, 14k Gold, Yellow Gold
Antique Ruby and Diamond Fly Brooch
Located in London, GB
Here we have a gorgeous antique brooch showcasing a captivating fly design. The body is adorned with vibrant pinky red rubies, each meticulously set to create a striking visual contr...
Diamond, Ruby, 18k Gold, Yellow Gold, Silver
Appraised 18kt White Gold Ruby and Diamond Earrings - 1.60ctw Pear Rubies
Located in West Hempstead, NY
Elevate your jewelry collection with these exquisite 18kt White Gold Ruby and Diamond Earrings.
Diamond, Ruby, 18k Gold, White Gold
Platinum Cabochon Ruby and Diamond Brooch
Located in Great Neck Plaza, NY
A striking example of Art Deco-era craftsmanship, this 1920s platinum brooch features a vivid cabochon ruby at its center, surrounded by a dazzling array of old European brilliant-cu...
Diamond, Ruby, Platinum
$1,400
Ruby Dangle Earrings
Located in Missoula, MT
The perfect dangle with a pop of color. Featuring rare Ruby Cabochon's. Hanging on a 14k Gold French ear wire. -2, 4mm Ruby Stones -14k Yellow Gold -French ear wire -sold as a pair
Ruby, 14k Gold
McTiegue Diamond Ruby Eagle Brooch
By McTeigue
Located in Cincinnati, OH
Beautiful Handcrafted McTieque 18K Yellow Gold and Platinum Eagle Brooch 100 full-cut round brilliant diamonds measuring approximately 1.3-1.8mm each Approximately 2.00 Carat Total ...
Diamond, Ruby, 18k Gold, Platinum
$17,370 / item
Ruby Heart Customized Bag Bijoux
By Ashna Mehta
Located in Dubai, AE
A timeless emblem of passion and vitality. The HEART Bag Bijoux by Ashna Mehta is masterfully crafted in glowing 18K rose gold and ablaze with natural rubies—gemstones revered for th...
Ruby, 18k Gold, Rose Gold
$3,189Sale Price|40% Off
Star Ruby Silver Necklace Natural Red 15 ct Ruby Gemstone Pendant gift LOTR
Located in Berlin, DE
The cabochon-cut ruby displays a distinct six-pointed star that appears when illuminated, a hallmark of fine asterism found in select Sri Lankan rubies.
Ruby, Star Ruby, Silver
$3,720
Oval Ruby Ring
Located in บางรัก, TH
18kt white gold ruby ring with diamonds Gold colour & karat: White gold 18kt Weight: 5.25 grams Set with- Stone type: Ruby Shape: Oval Carat: 0.66 Colour: - Cla...
Ruby, 18k Gold, White Gold
18K Rose Gold Turtle Mixed Colored Diamond Brooch
By Althoff Jewelry
Located in Hong Kong, HK
As a creature that has survived the prehistoric era, they have a connection to the planet that stretches far back to the beginning of life itself. Althoff Jewelry’s Turtle Brooch is...
Diamond, Ruby, 18k Gold, Rose Gold
$2,800
Ruby Eternity Band
Located in Litchfield, CT
WEIGHT: 3.7 grams STONES: 3.25 carats total weight of ruby HALLMARKS: 0.750 for 18k and maker's mark STOCK NUMBER: 26788 Jewelry acquired from this dealer must delight yo...
Ruby, 18k Gold, White Gold
$10,010
Ruby Diamond Ring
Located in Geneva, CH
Oval shape Ruby and 6 round cut Diamonds mounted on white gold Ring. Oval shape Ruby size: 6.10 x 5.03 millimeters. Diamonds weight estimation: 0.30 carat total. Ring Size: 4 1/4. Gr...
Diamond, Ruby
Sophia D. Ruby and Diamond Leaf Brooch
By Sophia D
Located in New York, NY
It showcases a central ruby weighing 3.59 carats. Surrounding the ruby are diamonds totaling 7.06 carats, meticulously set to enhance their brilliance and complement the rich hue of ...
Diamond, Ruby
Platinum Ruby and Diamond Scroll Brooch
Located in Great Neck Plaza, NY
The layered composition and dynamic swirl silhouette evoke the sophisticated elegance of 1950s high jewelry design, capturing the light with every movement.
Diamond, Ruby, Platinum
Antique Ruby and Diamond Brooch
Located in London, GB
Here we have a charming brooch taken from the Victorian period. This antique piece showcases an graceful swirling design adorned with a striking deep red ruby at the centre. Surround...
Diamond, Ruby, Gold, 18k Gold, Yellow Gold, Silver
Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself.
Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.
Since its founding, in 1837, Tiffany & Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.
For the woman who prefers a minimalist look, the Tiffany & Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.
Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.
In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so.
Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.
Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle.
BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.
A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in.
Since Van Cleef & Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.
Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.
Find a stunning collection of vintage and antique gold jewelry on 1stDibs.
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.