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Ruby & Moon stone & White Diamond point Bangles Bracelets (size M)
Located in 종로구, SO
. * SIZE M : circumference18.5cm Bracelet with lines of diamonds and points of rubies and white moonstones
Category

21st Century and Contemporary South Korean Artist Bangles

Materials

18k Gold

White Diamond & Ruby, Moon stone point Bangles Bracelets ( size L )
Located in 종로구, SO
. * SIZE L : circumference 20.5 cm Bracelet with lines of diamonds and points of rubies and white
Category

21st Century and Contemporary South Korean Artist Bangles

Materials

18k Gold

Ruby & Moon stone & White Diamond point Bangles Bracelets (size S)
Located in 종로구, SO
. * SIZE S : circumference16.5cm Bracelet with lines of diamonds and points of rubies and white moonstones
Category

21st Century and Contemporary South Korean Artist Bangles

Materials

18k Gold

18K gold Navratna necklace with diamonds and diamond slices Navratan string
Located in Bangkok,, TH
recognised by hindu astrological system- Sun (ruby), Moon (pearl), Mercury (emerald), Mars (Coral), Jupiter
Category

2010s Indian Link Necklaces

Materials

Cat’s Eye, Hessonite, Yellow Sapphire, Blue Sapphire, Ruby, Cultured Pea...

2 Matching Moon Shape Pigeon Rubies 0.66ct in 18ct Yellow Gold Ring
Located in London, GB
2 Matching Moon Shape Pigeon Rubies , 0.66ct Set In 18ct Yellow Gold Ring This elegant Ruby ring
Category

2010s English Solitaire Rings

Materials

Ruby, Yellow Gold

10.00 Carat GIA Mozambique Ruby & Half Moon Diamond Ring 18K Yellow Gold
Located in Carmel-by-the-Sea, CA
An exceptional Ruby in size and beauty as well as value. In a market of rising ruby prices with no
Category

2010s Three-Stone Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Oval Burma Ruby Half Moon Diamonds 2.20 Carat Eighteen Karat White Gold Ring
By OGI Ltd
Located in New York, NY
Introducing our exquisite Oval Burma Ruby Half Moon Diamonds Ring, a stunning piece crafted with
Category

2010s North American Contemporary Cluster Rings

Materials

Diamond, Ruby, Gold, 18k Gold, White Gold

Lucea New York Moon Stone and Ruby Pendant
By Lucea New York
Located in New York, NY
Life in color Collection Pure color Moon Stone wrapped in Ruby pave halo pendant set in Sterling
Category

2010s Indian Contemporary Pendant Necklaces

Materials

Moonstone, Ruby, Silver, Sterling Silver

Rare Bulgari Onyx, Ruby and Gold “Half Moon” Set
By Bulgari
Located in New York, NY
Rare Bulgari Onyx, Ruby and Gold “Half Moon” Set comprising Necklace and Earrings. Made in Italy
Category

Vintage 1970s Link Necklaces

Materials

Onyx, Ruby, Gold

Oval Ruby Cocktail Ring with Half Moon Diamond Accents
Located in New York, NY
1.57ct Oval Ruby Cocktail Ring featuring 0.50ct Total Weight of Half Moon Diamonds and 0.55ct Total
Category

2010s American Modern Cocktail Rings

Materials

Diamond, Ruby, Platinum

Ruby Diamond Meghna Jewels Claw Half Moon Studs
By Meghna Jewels
Located in Hoffman Estate, IL
silver. It is hand set in 16.0-ct ruby & .67 ct of sparkling diamonds in signature pave arches. The
Category

21st Century and Contemporary Unknown Modern Stud Earrings

Materials

White Diamond, Ruby, Diamond, 14k Gold, Sterling Silver

Syna Earrings with Moon Quartz, Emeralds, Rubies, Sapphires & Diamonds
By Syna Jewels
Located in Fort Lee, NJ
Created in 18 karat yellow gold Moon quartz 13 carats approx. Emeralds 0.15 carat approx. Rubies
Category

2010s American Contemporary Clip-on Earrings

Materials

Diamond, Emerald, Quartz, Ruby, Sapphire, 18k Gold, Yellow Gold

Exceptional 3.11ct Burmese Ruby with Half Moon cut diamonds
Located in Ramat Gan, IL
**Exceptional 3.11ct Burmese Ruby with Half Moon Cut Diamonds** Discover the allure of this
Category

Antique 19th Century American Art Deco Engagement Rings

Materials

Ruby, White Diamond, Diamond, White Gold, 18k Gold

Crescent Moon Necklace Black Pearl White Diamond Ruby Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Crescent Moon Necklace Black Pearl White Diamond Ruby Dauphin Black sweet water Pearl necklace is
Category

2010s American Romantic Beaded Necklaces

Materials

White Diamond, Pearl, Freshwater Pearl, Ruby, Black Pearl, Bronze

Star & Crescent Moon Ruby Diamond Earrings 14k Yellow Gold
Located in Sugar Land, TX
♥ Product Summary ♥ Main Stone: Ruby & Diamonds Approx. Total Carat Weight: 1.14cttw Diamond
Category

21st Century and Contemporary American Lever-Back Earrings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Victorian 2.60ct Ruby and Diamond Crescent Moon Brooch, c.1880s
Located in London, GB
This stunning brooch dates back to the Victorian period and features a Ruby crescent moon design
Category

Antique 1880s British Victorian Brooches

Materials

Diamond, Ruby, 15k Gold, Yellow Gold, Silver

Bangle Crescent Moon Star Emerald Ruby Tanzanite Bracelet J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Bangle Crescent Moon Star Emerald Ruby Tanzanite Bracelet Gold Plated Brass J Dauphin J DAUPHIN
Category

2010s American Contemporary Bangles

Materials

Emerald, Ruby, Tanzanite, Gold Plate

Moon Star Necklace Silver Chain Green Garnet Ruby Tanzanite Crescent
By J DAUPHIN
Located in Los Angeles, CA
Moon Star Necklace Silver Chain Green Garnet Ruby Tanzanite Crescent The word “crescent” comes
Category

2010s American Contemporary Chain Necklaces

Materials

Garnet, Ruby, Green Sapphire, Tanzanite, Silver, Sterling Silver

Crescent Moon Gold Necklace Black Pearl White Diamond Ruby Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Crescent Moon Necklace Black Pearl White Diamond Ruby Dauphin Black sweet water Pearl necklace is
Category

2010s American Romantic Beaded Necklaces

Materials

White Diamond, Pearl, Black Pearl, Freshwater Pearl, Ruby, Gold, 14k Gold

Crescent Moon Gold Necklace Black Pearl White Diamond Ruby Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Crescent Moon Necklace Black Pearl White Diamond Ruby Dauphin Black sweet water Pearl necklace is
Category

2010s American Romantic Beaded Necklaces

Materials

White Diamond, Pearl, Black Pearl, Freshwater Pearl, Ruby, Gold, 14k Gold

Large Baguette Ruby 8.00 Carat Trending Crescent Moon Yellow Gold Earrings
By OGI Ltd
Located in New York, NY
Discover the elegance of celestial beauty with our Large Baguette Ruby Crescent Moon Earrings
Category

2010s American Contemporary Stud Earrings

Materials

Ruby, 14k Gold, Yellow Gold, Gold

GRS GIA Certified 7.15 Carat Ceylon Ruby Half moon diamond ring
By Antinori Fine Jewels
Located in Chicago, IL
An exquisite 7.15 carat cushion ruby certified by GRS, GIA ceylon origin side diamonds are half
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Ruby

Emerald Ruby Tanzanite Crescent Moon Star Bracelet Bangle Bronze J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Emerald Ruby Tanzanite Crescent Moon Star Bracelet Bangle Bronze J DAUPHIN "Stellar Origin" Made
Category

2010s American Contemporary Bangles

Materials

Emerald, Ruby, Tanzanite, Bronze

Moon Star Bracelet Bangle Cuff White Diamond Ruby Tanzanite J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Crescent Moon Star Bracelet Bangle White Diamond Ruby Tanzanite J Dauphin J DAUPHIN "Stellar
Category

2010s American Contemporary Bangles

Materials

White Diamond, Ruby, Tanzanite, Bronze

Crescent Moon Star Bangle Bracelet White Diamond Tanzanite Ruby J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Crescent Moon Star Bangle Bracelet White Diamond Tanzanite Ruby J Dauphin Hand made in Los Angeles
Category

2010s American Contemporary Bangles

Materials

White Diamond, Ruby, Tanzanite, Bronze

Moon Star Emerald Ruby Sapphire Crescent Necklace Silver Chain J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Moon Star Emerald Ruby Sapphire Crescent Necklace Silver Chain J Dauphin The word “crescent” comes
Category

2010s American Contemporary Chain Necklaces

Materials

Ruby, Emerald, Sapphire, Silver, Sterling Silver

Emerald Ruby Tanzanite Crescent Moon Star Bracelet Bangle Cuff Gold Vermeil
By J DAUPHIN
Located in Los Angeles, CA
Emerald Ruby Tanzanite Crescent Moon Star Bracelet Bangle Cuff Gold Vermeil J DAUPHIN "Stellar
Category

2010s American Contemporary Bangles

Materials

Emerald, Ruby, Tanzanite, Vermeil

White Diamond Ruby Crescent Moon Necklace White Pearl Choker Gold Vermeil
By J DAUPHIN
Located in Los Angeles, CA
Crescent Moon Necklace White Pearl White Diamond Choker J Dauphin Pearl necklace is 16" Pendant
Category

2010s American Romantic Beaded Necklaces

Materials

White Diamond, Pearl, Freshwater Pearl, Ruby, Vermeil

15ct Gold Edwardian Pearl & Ruby Crescent Moon Brooch Hallmarked Chester 1901
Located in Brighton, GB
adorned with a seed pearl set crescent moon and a faceted natural ruby, exuding a classic yet refined
Category

Early 20th Century English Edwardian Brooches

Materials

Pearl, Ruby, Gold, 15k Gold

Aquamarine Blue Sapphire Ruby Emerald Crescent Moon Star Necklace Silver Chain
By J DAUPHIN
Located in Los Angeles, CA
Aquamarine Blue Sapphire Ruby Emerald Crescent Moon Star Necklace Silver Chain The word “crescent
Category

2010s American Contemporary Chain Necklaces

Materials

Aquamarine, Emerald, Ruby, Blue Sapphire, Silver, Sterling Silver

Aquamarine Blue Sapphire Ruby Emerald Crescent Moon Star Necklace Silver Chain
By J DAUPHIN
Located in Los Angeles, CA
Aquamarine Blue Sapphire Ruby Emerald Crescent Moon Star Necklace Silver Chain The word “crescent
Category

2010s American Contemporary Chain Necklaces

Materials

Aquamarine, Ruby, Blue Sapphire, Emerald, Sterling Silver, Silver

Aquamarine Blue Sapphire Ruby Emerald Crescent Moon Star Necklace Silver Chain
By J DAUPHIN
Located in Los Angeles, CA
Aquamarine Blue Sapphire Ruby Emerald Crescent Moon Star Necklace Silver Chain The word “crescent
Category

2010s American Contemporary Chain Necklaces

Materials

Aquamarine, Emerald, Ruby, Blue Sapphire, Silver, Sterling Silver

Aquamarine Blue Sapphire Ruby Emerald Crescent Moon Star Necklace Silver Chain
By J DAUPHIN
Located in Los Angeles, CA
Aquamarine Blue Sapphire Ruby Emerald Crescent Moon Star Necklace Silver Chain The word “crescent
Category

2010s American Contemporary Chain Necklaces

Materials

Aquamarine, Emerald, Ruby, Blue Sapphire, Silver, Sterling Silver

Moon Star Bracelet Bangle Emerald Ruby Tanzanite Gold Plated J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Crescent Moon Star Emerald Ruby Tanzanite Bracelet Bangle Cuff Gold Plated J Dauphin J DAUPHIN
Category

2010s American Contemporary Bangles

Materials

Emerald, Ruby, Tanzanite, Gold Plate, Brass

Moon Star Bracelet Bangle Emerald Ruby Tanzanite Gold Plated J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Crescent Moon Star Emerald Ruby Tanzanite Bracelet Bangle Cuff Gold Plated J Dauphin J DAUPHIN
Category

2010s American Contemporary Bangles

Materials

Emerald, Ruby, Tanzanite, Gold Plate, Brass

White Diamond Ruby Crescent Moon Necklace Black Pearl Gold Vermeil Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Crescent Moon Necklace Black Pearl White Diamond Ruby Dauphin Black sweet water Pearl necklace is
Category

2010s American Romantic Beaded Necklaces

Materials

White Diamond, Pearl, Black Pearl, Freshwater Pearl, Ruby, 10k Gold, Ver...

14k & 18k Gem Slider Charm Choker Necklace Ruby Emerald Sapphire Moon
Located in Sausalito, CA
gemstones, including two slider beads channel-set with rubies, fracture-filled emeralds, and sapphires
Category

20th Century Unknown Pendant Necklaces

Materials

Amethyst, Citrine, Emerald, Ruby, Sapphire, 14k Gold, Yellow Gold, 18k Gold

Moon Star Emerald Ruby Tanzanite Bracelet Arm Cuff Bronze Crescent J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Moon Star Emerald Ruby Tanzanite Bracelet Arm Cuff Bronze Crescent J Dauphin J DAUPHIN "Stellar
Category

2010s American Contemporary Bangles

Materials

Emerald, Ruby, Tanzanite, Bronze

Crescent moon star Emerald Ruby Tanzanite Bracelet Arm Cuff Bronze J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Crescent moon star Emerald Ruby Tanzanite Bracelet Arm Cuff Bronze J Dauphin J DAUPHIN "Stellar
Category

2010s American Contemporary Bangles

Materials

Ruby, Tanzanite, Emerald, Bronze

Crescent Moon Star Emerald Ruby Tanzanite Bracelet Arm Cuff Bronze J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Crescent moon star Emerald Ruby Tanzanite Bracelet Arm Cuff Bronze J Dauphin J DAUPHIN "Stellar
Category

2010s American Contemporary Bangles

Materials

Emerald, Ruby, Tanzanite, Bronze

GIA Certified No Heat Cushion Ruby Half Moon Diamond Platinum Cocktail Ring
By OGI Ltd
Located in New York, NY
-carat cushion-cut ruby, proudly certified by the Gemological Institute of America (GIA) as a NO HEAT
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Ruby, Platinum

Art Nouveau White Diamond Ruby Emerald Turquoise Yellow Gold "Moon" Earrings
By Luigi Ferrara
Located in Naples, IT
Carats of White Modern Round Cut Diamonds. These Earrings have 1.80 Carats of Modern Round Cut Rubies
Category

21st Century and Contemporary Italian Art Deco Drop Earrings

Materials

Diamond, White Diamond, Emerald, Ruby, Tourmaline, Turquoise, 9k Gold, Y...

Rusty Moon Leather Necklace in 18Kt Yellow Gold with Red Verneuil Synthetic Ruby
By Nicofilimon the Jewelry Designer
Located in Athens, GR
object, vernail synthetic ruby, leather and 18Kt yellow gold combined all together they give a really
Category

2010s Greek Artist Pendant Necklaces

Materials

Ruby, Yellow Gold, 18k Gold

Moon Star Emerald Ruby Tanzanite Bracelet Arm Cuff Gold Crescent J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Moon Star Emerald Ruby Tanzanite Bracelet Arm Cuff Gold Crescent J Dauphin J DAUPHIN "Stellar
Category

2010s American Contemporary Bangles

Materials

Emerald, Ruby, Tanzanite, Gold, 14k Gold, Yellow Gold

Luxle 1.05 Cttw Natural Ruby/Diamond Crescent Moon Earrings in 14K White Gold
Located in New York, NY
shimmering array of rubies and diamonds. The delicate crescent moon shape, featuring two rows, highlights an
Category

2010s Contemporary Stud Earrings

Materials

Diamond, Ruby, 14k Gold, White Gold

Hand Blown Murano Moon Vase in Ruby Red Medium
Located in West Hollywood, CA
striking visual and tactile experience. The deep, rich red glaze is inspired by the lush hues of ruby, a
Category

21st Century and Contemporary Italian Modern Vases

Materials

Murano Glass

Hand Blown Murano Moon Vase in Ruby Red Large
Located in West Hollywood, CA
striking visual and tactile experience. The deep, rich red glaze is inspired by the lush hues of ruby, a
Category

21st Century and Contemporary Italian Modern Vases

Materials

Murano Glass

Crescent Moon Star Black Pearl Bead Necklace Gold White Diamond Ruby J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Crescent Moon Star Black Pearl Bead Necklace Gold White Diamond Ruby J Dauphin Black sweet water
Category

2010s American Romantic Beaded Necklaces

Materials

White Diamond, Pearl, Black Pearl, Ruby, Bronze, Gold

Crescent Moon Star Black Pearl Bead Necklace Gold White Diamond Ruby J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Crescent Moon Star Black Pearl Bead Necklace Gold White Diamond Ruby J Dauphin Black sweet water
Category

2010s American Romantic Beaded Necklaces

Materials

White Diamond, Pearl, Black Pearl, Ruby, Gold, 14k Gold

Crescent Moon Star Black Pearl Bead Necklace Gold White Diamond Ruby J Dauphin
By J DAUPHIN
Located in Los Angeles, CA
Crescent Moon Star Black Pearl Bead Necklace Gold White Diamond Ruby J Dauphin Black sweet water
Category

2010s American Romantic Beaded Necklaces

Materials

White Diamond, Pearl, Black Pearl, Ruby, Gold, 14k Gold

Art Nouveau Ruby 14 Karat Two-Tone Gold Crescent Moon Night Sky Stickpin
Located in Philadelphia, PA
Designed as a highly rendered polished white gold crescent moon with stylized textured yellow gold
Category

Antique Early 1900s Art Nouveau Brooches

Materials

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

18 Karat White Gold Moon Pendant Necklace by the Artist with Ruby and Diamonds
By Polya Medvedeva Jewellery
Located in Berlin, DE
The Moon pendant is a necklace designed by an artist, made of 18 karat white gold with a half
Category

21st Century and Contemporary German Contemporary Pendant Necklaces

Materials

Diamond, Ruby, Gold, 18k Gold, White Gold

New Platinum AGL & GIA Cushion Pink Sapphire Burma Ruby & Half Moon Diamond Ring
Located in Montclair, NJ
sees it as a Ruby - Burma NO HEAT and one as a Pink Sapphire NO HEAT - The bottom line is this is a
Category

2010s American Engagement Rings

Materials

Pink Sapphire, Ruby, Diamond, Platinum, Yellow Gold, 18k Gold

Art Nouveau Style Ruby Emerald Sapphire Opal Yellow Gold "Moon Phases" Pendant
By Luigi Ferrara
Located in Naples, IT
1stdibs catalog worldwide. This Pendant is made of 9K Yellow Gold. This Pendant has 0.50 Carats of Rubies
Category

21st Century and Contemporary Italian Art Nouveau Pendant Necklaces

Materials

Blue Sapphire, Turquoise, Sapphire, Ruby, Peridot, Opal, Garnet, Emerald...

Le Vian Couture Three-Stone Oval Ruby and Half Moon Diamond Ring 6.40ct Center
By Le Vian
Located in Chicago, IL
certificate included. This Le Vian ring is made of 18K white gold. It contains an oval ruby weighing 6.40
Category

2010s Unknown Contemporary Cocktail Rings

Materials

Diamond, Ruby, 18k Gold

11.24 Carat Burma No Heat Ruby Sugar Loaf & Half Moon Cut Diamond 3 Stone Ring
Located in Tampa, FL
11.24 Carat Burma No Heat Ruby Sugar Loaf & Half Moon Cut Diamond 3 Stone Ring Featuring a rare
Category

2010s Burmese Three-Stone Rings

Materials

Ruby, Diamond, Platinum, Yellow Gold, 18k Gold

Ruby and Diamond Ring set in 18K Gold Settings
Located in Bangkok, TH
Ruby 0.47 carat and Diamond 0.38 carat with Diamond 0.15 carat Ring set in 18K Gold Settings Width
Category

2010s Thai Contemporary Cocktail Rings

Materials

Diamond, Ruby, 18k Gold

0.31 Ct Emerald, Ruby and Sapphire Crescent Moon Diamond Ring in 14K Gold
By Oshi Jewels
Located in Bangkok, TH
Crescent Moon Diamond and Gemstone Ring/ Minimalist ring/ Gold crescent moon ring/ Lucky ring
Category

21st Century and Contemporary Thai Modern Fashion Rings

Materials

Diamond, Yellow Gold, White Gold, Rose Gold, 14k Gold

0.31 Ct Emerald, Ruby and Sapphire Crescent Moon Diamond Ring in 18K Gold
By Oshi Jewels
Located in Bangkok, TH
Crescent Moon Diamond and Gemstone Ring/ Minimalist ring/ Gold crescent moon ring/ Lucky ring
Category

21st Century and Contemporary Thai Modern Fashion Rings

Materials

Diamond, Yellow Gold, White Gold, Rose Gold, 18k Gold

Crescent Moon Star Bracelet Bangle Emerald
By J DAUPHIN
Located in Los Angeles, CA
Moon Star Bracelet Bangle Cuff Emerald Ruby Tanzanite Crescent Moon J DAUPHIN "Stellar Origin
Category

2010s American Contemporary Bangles

Materials

Tanzanite, Ruby, Emerald, Yellow Gold, 14k Gold

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Ruby Moon For Sale on 1stDibs

You are likely to find exactly the ruby moon you’re looking for on 1stDibs, as there is a broad range for sale. Each design created in this style — which was crafted with great care and often made from Gold, 18k Gold and Yellow Gold — can elevate any look. Find an antique version now, or shop for 31 vintage or 27 modern creation for a more contemporary example of these cherished accessories. If you’re looking for a ruby moon from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 19th Century while another version may have been produced as recently as the 21st Century. There have been many well-made iterations of the classic ruby moon over the years, but those made by J DAUPHIN, Clarissa Bronfman and Takat are often thought to be among the most beautiful. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and half moon cut cut versions available here, too. There aren’t many items for men if you’re seeking a ruby moon, as most of the options available are for women and unisex.

How Much is a Ruby Moon?

Prices for a ruby moon can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $360 and can go as high as $209,600, while this accessory, on average, fetches $3,625.

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.