Skip to main content

Ruby India

to
628
831
177
1,999
965
113
36
30
28
27
25
12
11
11
10
7
6
5
4
4
3
3
2
2
2
1
1
1
1
214
165
102
65
35
Sort By
Moi Nizam Emerald and Ruby Ring
Located in Lawrenceville, GA
: 0.23ct Gemstones : Emerald, Glass-filled Ruby India-inspired, this ring is an ode to the colorful land
Category

21st Century and Contemporary Indian Cocktail Rings

Materials

Diamond, Emerald, Ruby, 14k Gold

A diamond and ruby gemset jade pendant necklace, India
Located in Bangkok,, TH
ruby as centre which is surrounded with petals in tabletop-cut diamonds. The nephrite jade is
Category

2010s Indian Pendant Necklaces

Materials

Diamond, Jade, Ruby, 14k Gold

Vintage 14 Karat Yellow Gold Ruby, Sapphire and Pearl Bangle from the "India"
Located in Los Angeles, CA
Rubies, Sapphires and Pearls. Its intricate and detailed craftsmanship makes it the perfect choice for a
Category

Late 20th Century Indian Artist Bangles

Materials

Ruby, Pearl, Sapphire, Yellow Gold, 14k Gold

A finely carved jade spoon Mughal India
Located in Bangkok,, TH
pluck it once it blooms into a flower. The spoon has been decorated with gold, rubies and natural
Category

2010s Indian Dinnerware and Flatware Sets

Materials

Diamond, Jade, Ruby, 24k Gold

A finely carved jade spoon  Mughal India
A finely carved jade spoon  Mughal India
W 1.6 in D 0.54 in L 4.52 in
Mozambique Ruby Blood Red 4.05 cts 100% Natural Ruby Unheated Ruby Certified
Located in Chicago, IL
Mozambique Ruby Blood Red 4.05 cts 100% Natural Ruby UNHEATED Ruby Certified. Additional
Category

2010s Indian More Jewelry

Materials

Ruby

Mozambique Ruby Blood Red 4.05 cts 100% Natural Ruby No-Heat Ruby Certified
Located in Chicago, IL
Mozambique Ruby Blood Red 4.05 cts 100% Natural Ruby UNHEATED Ruby Certified. Additional
Category

2010s Indian More Jewelry

Materials

Ruby

Mozambique Ruby 1.65Cts Cut Stone Unheated Ruby AAA+Natural Certified Ruby
Located in Chicago, IL
Mozambique Ruby 1.65Cts Cut Stone Unheated Ruby 100%Natural Certified Ruby Additional information
Category

2010s Indian More Jewelry

Materials

Ruby

Mozambique Ruby 1.00Cts Cut Stone Unheated Ruby 100% Natural Certified Ruby
Located in Chicago, IL
Mozambique Ruby 1.00Cts Cut Stone Unheated Ruby 100%Natural Certified Ruby Additional information
Category

2010s Indian More Jewelry

Materials

Ruby, Yellow Gold, 14k Gold

Mozambique Ruby 1.55 cts Purplish Red Natural Ruby Cut Stone Loose
Located in Chicago, IL
Mozambique Ruby 1.55 cts Purplish Red Natural IGI Certified Ruby Cut Stone Loose Light weight can
Category

2010s Indian More Jewelry

Materials

Ruby

Natural Ruby Earring 1.10ctw Burma Ruby 18K Gold Vermeil Ruby Earrings studs
Located in Delhi, DL
------------------------------------------------- -Gemstone- Natural Ruby - Gemstone origin- Burma - Gem Stone Wt. : 1.10ctw - No of Stone- 02 (Piece
Category

2010s Indian Art Deco Stud Earrings

Materials

Ruby, Vermeil, 18k Gold, Sterling Silver

Mozambique Ruby 6.72 Cts Red Unheated Blood Ruby Certified IGITL No Heat
Located in Chicago, IL
Mozambique Ruby 6.72 Cts EmEra: ld Cut Ruby Unheated Blood Red Ruby Certified It can be Also can
Category

2010s Indian More Jewelry

Materials

Ruby

Mozambique Ruby 5.48cts Purplish Red Rare Size IGI Certified Natural Ruby Cut
Located in Chicago, IL
Mozambique Ruby 5.48cts Purplish Red Rare size IGI Certified Natural Ruby Cut Light weight can be
Category

2010s Indian More Jewelry

Materials

Ruby

1.50 cts Mozambique Ruby Unheated Blood Red Cut Stone Natural Ruby AAA+
Located in Chicago, IL
1.50 cts Mozambique Ruby Unheated Blood Red Ruby Cut Stone Natural Ruby Gemstone Note: There May
Category

2010s Indian More Jewelry

Materials

Ruby

Ruby Floral Ring
Located in New York, NY
Delicate yet striking, this floral ring blossoms with the rich allure of ruby rose-cut slices
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

White Diamond, Ruby, 18k Gold

Ruby Diamond Pendant
Located in New York, NY
Regal and ornate, this exquisite pendant centers around a vivid oval-shaped ruby (1.51cts
Category

21st Century and Contemporary Indian Art Deco Pendant Necklaces

Materials

White Diamond, Ruby, 18k Gold

Goshwara Oval Ruby Pendant
By Goshwara
Located in New York, NY
'Pave' Oval Ruby Pendant in 18K White Gold with Cable Chain, from 'Sugar-loaf' Collection. Please
Category

21st Century and Contemporary Indian Contemporary More Jewelry

Materials

Ruby, 18k Gold

Mozambique Ruby 1.60 cts Purplish Red 100% Natural IGI Certified Red Ruby Cut
Located in Chicago, IL
Mozambique Ruby 1.60 cts Purplish Red 100%Natural IGI Certified Red Ruby Cut Light weight can be
Category

2010s Indian More Jewelry

Materials

Ruby

Gold diamond 51 carats emerald ruby earrings, long carved emerald ruby earrings
Located in Yorba Linda, CA
Gold diamond 51 carats emerald ruby earrings, long carved emerald ruby earrings, flower ruby
Category

2010s Indian Drop Earrings

Materials

Ruby, Emerald, Diamond, Gold

Ruby Earring Certified 1.00ctw Burma Ruby 925 Sterling Silver Earring
Located in Delhi, DL
Ruby (Real) - Gem Stone Wt. : 1.00ctw - No of Stone- 02 (Piece
Category

2010s Indian Art Deco Stud Earrings

Materials

Ruby, Sterling Silver

Natural Ruby cabochon, carved Blue Sapphires, Emerald, Ruby & Diamonds Earrings
By JEWEL HUB
Located in Hong Kong, HK
A very gorgeous and beautiful, classical style, Ruby, Emerald & Blue Sapphires Chandelier Earrings
Category

21st Century and Contemporary Indian Contemporary Drop Earrings

Materials

Diamond, Emerald, Ruby, Blue Sapphire

Ruby diamond Earring Certified Natural Ruby 925 Sterling Silver Earring
Located in Delhi, DL
------------------------------------------------- -Gemstone-Natural Ruby (Real) - Gem Stone Wt.: 3.10ctw - No of Stone- 02 (Piece
Category

2010s Indian Art Deco Stud Earrings

Materials

Ruby, Diamond, Sterling Silver

Natural ruby bracelet in 18k gold
Located in jaipur, IN
Gemstone : Ruby ❋ Gemstone Size : 2.5X5 MM Approx. ❋ Gemstone Shape : Marquise Cut ❋ Gemstone
Category

2010s Indian Modern Bracelets

Materials

Ruby, 18k Gold

22.5 carats Ruby bracelet
Located in New York, NY
Elegance and opulence come together in this stunning bracelet adorned with 45 oval-shaped rubies
Category

2010s Indian Modern Modern Bracelets

Materials

Diamond, Ruby, 14k Gold, White Gold

4.96 carats Ruby Bracelet
Located in New York, NY
bracelet features a breathtaking arrangement of 64 round rubies, each boasting an impressive weight of 4.96
Category

2010s Indian Modern Tennis Bracelets

Materials

Diamond, Ruby, 18k Gold, White Gold

Natural ruby necklace in 18k gold
Located in jaipur, IN
❋ Gemstone : Ruby ❋ Gemstone Size : 3x5 MM Approx. (± 0.20 MM) ❋ Gemstone Weight : 22.31 Cts
Category

2010s Indian Link Necklaces

Materials

Ruby, 18k Gold

Lucea New York Ruby Beaded Necklace
By Lucea New York
Located in New York, NY
Life in color Collection Ruby beaded totaling 808.00ct featuring as a multi-strand long necklace
Category

2010s Indian Contemporary Multi-Strand Necklaces

Materials

Ruby, Other

5.65 Carat Ruby Infinity Band Ring
By Gems Paradise
Located in Jaipur, IN
The 5.65 Carat Ruby Infinity Band Ring is a striking fusion of timeless elegance and vibrant color
Category

2010s Indian Contemporary Band Rings

Materials

Ruby, Silver

Ruby and Diamond Earring
Located in New York, NY
Feel sparkled with this gorgeous oval shape ruby in center with pave diamond rays around. Closure
Category

21st Century and Contemporary Indian Modern Dangle Earrings

Materials

Diamond, Ruby, 18k Gold, Silver

Ruby and Diamond Earring
Ruby and Diamond Earring
W 1.35 in L 2.5 in
Snake Bangle Silver Opal Ruby
By J DAUPHIN
Located in Los Angeles, CA
Snake bangle bracelet crafted in silver, adorned with opal and ruby, designed in a Victorian style
Category

2010s Indian Contemporary Bangles

Materials

Opal, Ruby, Silver, Sterling Silver

Moi Mila Ruby Stackable-Ring
Located in Lawrenceville, GA
brilliant-cut rubies, blue sapphires and yellow sapphires. Stacked with channel set rubies.
Category

21st Century and Contemporary Indian Band Rings

Materials

Ruby, 14k Gold

Lucea New York Ruby & Leather Bracelet
By Lucea New York
Located in New York, NY
Combination of Icy Ruby and Leather is stylish way to add playfulness and color pops to your every
Category

2010s Indian Contemporary Cuff Bracelets

Materials

Ruby, Silver Plate

Natural Ruby ring in 18k gold
Located in jaipur, IN
Stone : Ruby (Glass - Filled) ❋ Stone Size : 8.50 MM ❋ Stone Shape : Round Cut ❋ Stone Weight
Category

2010s Indian Fashion Rings

Materials

Ruby, 18k Gold

Emerald & Pave Ruby Long Ring
By Artisan NYC
Located in New York, NY
This long fabulous pave ruby knuckle ring with oval shape emerald on top is perfect for a hip hop
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Emerald, Ruby, Silver

3.53 carats of Ruby earrings
Located in New York, NY
rubies and diamonds that make them truly stand out. Adorning each earring are 3.53 carats of marquise-cut
Category

2010s Indian Modern Stud Earrings

Materials

Diamond, Ruby, 18k Gold, White Gold

Natural ruby & diamond earring 14k gold
Located in jaipur, IN
This is a natural ruby Earring with Diamond in 14k gold. The ruby are very high quality and very
Category

2010s Indian Stud Earrings

Materials

Diamond, Ruby, 14k Gold

Natural ruby & diamond earring 14k gold
Located in jaipur, IN
This is a natural ruby Earring with Diamond in 14k gold. The ruby are very high quality and very
Category

2010s Indian Stud Earrings

Materials

Ruby, Diamond, 14k Gold

1940s Nava Ratna Enamel Precious Gemstone and 22 Karat Gold Earrings, India
Located in Nantucket, MA
Sapphire, Ruby, Yellow Sapphire, Coral, Pearl, Hessonite Garnet, Cat's Eye. Fine and unusual Indian
Category

Mid-20th Century Indian Stud Earrings

Materials

Yellow Sapphire, Blue Sapphire, Ruby, Pearl, Emerald, Diamond, Coral, 22...

Chain Cuff Bangle Ruby Cross
By J DAUPHIN
Located in Los Angeles, CA
Chain Cuff Bangle Bracelet Ruby Square Cross Material 14 k Gold plated Brass Designer J Dauphin
Category

2010s Indian Contemporary Bangles

Materials

Ruby, 14k Gold, Gold Plate, Bronze

Lucea New York Ruby Hoop Earrings
By Lucea New York
Located in New York, NY
Red Rose Collection Ruby hoop earrings with disc studs set in blackened sterling silver.
Category

2010s Indian Contemporary Hoop Earrings

Materials

Ruby, Sterling Silver

Eye Catching Mozambique Ruby Ring
By GEM PLAZA
Located in Jaipur, Rajasthan
Eye Catching Mozambique Ruby with Diamond 1 Oval shape ruby in 0.83 CTS 42 Diamond 0.33 18 K Rose
Category

21st Century and Contemporary Indian Art Deco Cluster Rings

Materials

Ruby, 18k Gold

Virgin Mary Medal Chain Necklace Ruby
By J DAUPHIN
Located in Los Angeles, CA
Virgin Mary Medal Chain Necklace Ruby Medal Chain Necklace Virgin Mary 3 pieces Ruby Solid Silver
Category

2010s Indian Victorian Chain Necklaces

Materials

Ruby, Silver, Sterling Silver

Chain Cuff Bangle Ruby Cross
By J DAUPHIN
Located in Los Angeles, CA
Chain Cuff Bangle Bracelet Ruby Square Cross Material 14 k Gold plated Brass Designer J Dauphin
Category

2010s Indian Contemporary Bangles

Materials

Ruby, Bronze, 14k Gold, Gold Plate

Ruby & Diamond Cocktail Ring
By Artisan NYC
Located in New York, NY
Lovely oval cocktail ring with cabochon ruby in center with polki diamonds around can be noticed
Category

21st Century and Contemporary Indian Art Nouveau Cocktail Rings

Materials

Diamond, Ruby, 14k Gold, Silver

Natural ruby 6.62cts earring in 18k gold
Located in jaipur, IN
Gemstone : Ruby ❋ Gemstone Size : 3X7 MM Approx. (± 0.20 MM) ❋ Gemstone Weight : 6.62 Cts. Approx
Category

2010s Indian Stud Earrings

Materials

Ruby, 18k Gold

13.23 cts of Ruby Earrings
Located in New York, NY
-shaped rubies, adding a vibrant and opulent touch to the earrings. Crafted in 18K white gold and weighing
Category

2010s Indian Modern Stud Earrings

Materials

Diamond, Ruby, 18k Gold, White Gold

Ruby Ring Set in Platinum with Diamonds
Located in Hong Kong, HK
A gorgeous and Chic ruby band ring set in Platinum PT900 with diamonds . The ruby weight is 1.11
Category

2010s Indian Band Rings

Materials

Diamond, Ruby, Platinum

3.48 carats of Ruby ring
Located in New York, NY
Behold the allure of our Oval Ruby Halo Diamond Ring, a mesmerizing masterpiece in sophistication
Category

2010s Indian Modern Cocktail Rings

Materials

Ruby, Diamond, White Gold, 18k Gold

Ruby Oval Band 14K Gold
Located in Rutherford, NJ
Stone : Ruby Type : Natural Ring Weight - 3.45 gms Ring Size - US 6.75 Ring Width : 5.1 mm Ring
Category

21st Century and Contemporary Indian Cocktail Rings

Materials

Ruby, 14k Gold, Rose Gold

Ruby and Diamonds Cocktail Ring
Located in New York, NY
A timeless tribute to vintage elegance, this exquisite ring features a rich, fiery ruby at its
Category

21st Century and Contemporary Indian Art Deco Cocktail Rings

Materials

White Diamond, Ruby, 18k Gold

7.8 Carat Diamond and Ruby Cocktail Earrings
By Gems Paradise
Located in Jaipur, IN
Immerse yourself in the luxurious world of our 7.8 Carat Diamond and Ruby Cocktail Earrings, where
Category

2010s Indian Modern Drop Earrings

Materials

Diamond, Ruby, Silver

Snake Ring Ruby Opal
By J DAUPHIN
Located in Los Angeles, CA
Red Ruby Opal Snake Ring Gold J DAUPHIN "The poison in me" made in 14 K Yellow and White Gold The
Category

2010s Indian Contemporary Cocktail Rings

Materials

Ruby, Opal, Yellow Gold, White Gold, 14k Gold, Gold

12 Carat Diamond and Ruby Fashion Earrings
By Gems Paradise
Located in Jaipur, IN
Experience the epitome of luxury with our 12 Carat Diamond and Ruby Fashion Earrings. Each piece is
Category

2010s Indian Modern Drop Earrings

Materials

Diamond, Ruby, Silver

16.6 Carat Diamond and Ruby Cocktail Earrings
By Gems Paradise
Located in Jaipur, IN
Immerse yourself in the splendor of our 16.6 Carat Diamond and Ruby Cocktail Earrings, an exquisite
Category

2010s Indian Contemporary Drop Earrings

Materials

Diamond, Ruby, Silver

7.53 Carat Diamond and Ruby Dangle Earrings
By Gems Paradise
Located in Jaipur, IN
Discover the allure of our 7.53 Carat Diamond and Ruby Dangle Earrings, where exquisite
Category

2010s Indian Contemporary Dangle Earrings

Materials

Diamond, Ruby, Silver

11.7 Carat Diamond and Ruby Drop Earrings
By Gems Paradise
Located in Jaipur, IN
Exquisitely designed to captivate and enchant, our 11.7 Carat Diamond and Ruby Drop Earrings are a
Category

2010s Indian Modern Drop Earrings

Materials

Diamond, Ruby, Silver

Natural Ruby oval 10.35cts bracelet in 18k gold
Located in jaipur, IN
Stone : Ruby ❋ Stone Size : 3X5 MM ❋ Stone Weight : 10.35 Cts. Approx. ❋ Stone Shape : Oval Cut
Category

2010s Indian Tennis Bracelets

Materials

Ruby, 18k Gold

8.71 Carat Diamond and Ruby Fashion Earrings
By Gems Paradise
Located in Jaipur, IN
Discover the epitome of elegance with our exquisite 8.71 Carat Diamond and Ruby Fashion Earrings, a
Category

2010s Indian Modern Drop Earrings

Materials

Diamond, Ruby, Silver

French Cut Burmese Ruby & Diamond Bracelet
By GEM PLAZA
Located in Jaipur, Rajasthan
An absolutely fabulous Ruby & Diamond bracelet from the Mordern era! Crafted in rose gold, this
Category

21st Century and Contemporary Indian Contemporary Chain Bracelets

Materials

Diamond, Ruby, Rose Gold

6.10 Carats Ruby and Diamond Earring
By GEM PLAZA
Located in Jaipur, Rajasthan
If you are looking for Ruby and Diamond earrings, this is the ultimate find, 6.10 carats
Category

21st Century and Contemporary Indian Contemporary Drop Earrings

Materials

Ruby, Diamond, 18k Gold

Natural ruby diamond earring in 18k gold
Located in jaipur, IN
Gemstone : Ruby ❋ Gemstone Weight : 1.050 Cts. ❋ Gemstone Shape : Baguette ❋ Gemstone Size : 3x5 MM
Category

2010s Indian Stud Earrings

Materials

Diamond, Ruby, 18k Gold

  • 1
  • ...
Get Updated with New Arrivals
Save "Ruby India", and we’ll notify you when there are new listings in this category.

Ruby India For Sale on 1stDibs

Find many varieties of an authentic ruby India available at 1stDibs. A ruby India — often made from gold, metal and stone — can elevate any home. If you’re shopping for a ruby India, we have 5 options in-stock, while there are 3 modern editions to choose from as well. You’ve searched high and low for the perfect ruby India — we have versions that date back to the 18th Century alongside those produced as recently as the 21st Century are available. A ruby India, designed in the style, is generally a popular piece of furniture. Many designers have produced at least one well-made ruby India over the years, but those crafted by Alfred Philippe for Trifari and Jenny Wheatley are often thought to be among the most beautiful.

How Much is a Ruby India?

Prices for a ruby India can differ depending upon size, time period and other attributes — at 1stDibs, they begin at $250 and can go as high as $88,500, while the average can fetch as much as $3,750.

Why Gold Shines in Jewelry Craftsmanship

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.

The Legacy of Ruby in Jewelry Design

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.