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GRS Certified 4 Carat  Oval Unheated VIVID Ruby Ring
GRS Certified 4 Carat  Oval Unheated VIVID Ruby Ring

GRS Certified 4 Carat Oval Unheated VIVID Ruby Ring

Located in Chicago, IL

A timeless creation by Cecile Blake, this exquisite ring showcases a vibrant 4.21-carat natural ruby of Burmese origin, certified by GRS for its pinkish-red hue and untreated status.

Category

2010s American Contemporary Cocktail Rings

Materials

Ruby, 18k Gold, White Gold, Yellow Gold

Boucheron Ruby and Diamond Cluster Ring, French, circa 1970
Boucheron Ruby and Diamond Cluster Ring, French, circa 1970

Boucheron Ruby and Diamond Cluster Ring, French, circa 1970

By Boucheron

Located in London, GB

Boucheron ruby and diamond cluster ring. Set centrally with seven round old cut natural unenhanced Burmese rubies in open back claw settings with an approximate weight of 2.50 carats...

Category

Late 20th Century French Cluster Rings

Materials

Diamond, Ruby, Platinum, Yellow Gold

GIA Certified 4.22 Carat Vivid Red Ruby Diamond Cocktail Ring
GIA Certified 4.22 Carat Vivid Red Ruby Diamond Cocktail Ring

GIA Certified 4.22 Carat Vivid Red Ruby Diamond Cocktail Ring

By Antinori Fine Jewels

Located in Chicago, IL

Discover the Rare Beauty of his GIA certified Burmese Ruby Unlock the unparalleled allure of nature's masterpiece with our stunning Natural Ruby from Mozambique.

Category

2010s Italian Modern Cocktail Rings

Materials

Diamond, White Diamond, Ruby, 18k Gold

Stunning Oval Ruby Ring ct. 4.10 with Diamonds. Unique Stone.
Stunning Oval Ruby Ring ct. 4.10 with Diamonds. Unique Stone.

Stunning Oval Ruby Ring ct. 4.10 with Diamonds. Unique Stone.

By Angeletti

Located in Roma, IT

The weight of 18kt Gold is 6.50. About the Ruby, the gemmological testing revealed characteristics corresponding to those of a natural ruby from Burma.

Category

2010s Italian Contemporary Solitaire Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

Yard Inc. Diamond and Ruby Ring, American, circa 1935
Yard Inc. Diamond and Ruby Ring, American, circa 1935

Yard Inc. Diamond and Ruby Ring, American, circa 1935

By Raymond C. Yard

Located in London, GB

Yard Inc. diamond and ruby cocktail ring. Set centrally with one octagonal Asscher cut diamond, F colour, SI1 clarity, with a weight of 1.87 carats in an open back claw setting, flan...

Category

Vintage 1940s American Cocktail Rings

Materials

Diamond, Ruby, Platinum

4.07 Carat Ruby and Diamond Earrings In 18 Karat White Gold
4.07 Carat Ruby and Diamond Earrings In 18 Karat White Gold

4.07 Carat Ruby and Diamond Earrings In 18 Karat White Gold

By Rewa Jewellery

Located in Bangkok, TH

The jewelery piece is made up of 70 natural untreated, round shaped Burmese rubies weighing approximately 4.07 carat.

Category

2010s Thai Modern Dangle Earrings

Materials

Diamond, Ruby, 18k Gold, White Gold

11.36 Carat Ruby And Diamond Earrings In 18 Karat White Gold
11.36 Carat Ruby And Diamond Earrings In 18 Karat White Gold

11.36 Carat Ruby And Diamond Earrings In 18 Karat White Gold

By Rewa Jewellery

Located in Bangkok, TH

The jewelery piece is made up of 70 natural untreated, round shaped Burmese rubies weighing approximately 11.36 carat.

Category

2010s Thai Modernist Dangle Earrings

Materials

Diamond, Ruby, 18k Gold, White Gold

Gold & Platinum GIA Sapphire Ruby Emerald Pearl & Diamond Tutti Frutti Bracelet
Gold & Platinum GIA Sapphire Ruby Emerald Pearl & Diamond Tutti Frutti Bracelet

Gold & Platinum GIA Sapphire Ruby Emerald Pearl & Diamond Tutti Frutti Bracelet

Located in Montclair, NJ

Comes with original (3) GIA certifications for 1 each randomly selected sapphire, ruby & emerald. Stock Number: MK-710346013 --Certification Details for Sapphire:-- Laboratory: ...

Category

20th Century Bangles

Materials

Diamond, Emerald, Pearl, Ruby, Sapphire, Gold, White Gold, Yellow Gold, ...

Colombian Emerald cabochon, carved Blue Sapphires, Ruby & Diamond Cocktail Ring
Colombian Emerald cabochon, carved Blue Sapphires, Ruby & Diamond Cocktail Ring

Colombian Emerald cabochon, carved Blue Sapphires, Ruby & Diamond Cocktail Ring

By JEWEL HUB

Located in Hong Kong, HK

Approx. ✦ Gemstone: Natural Burmese Blue Sapphire & natural Mozambique Ruby ✦ Gemstone Cut: Hand-carved ✦ Gemstone Weight: 15.99 ct.

Category

21st Century and Contemporary Indian Art Deco Cocktail Rings

Materials

Diamond, Emerald, Ruby, Blue Sapphire

14K Yellow Gold Floral Cluster Ruby and Diamond Mini Stud Earrings
14K Yellow Gold Floral Cluster Ruby and Diamond Mini Stud Earrings

14K Yellow Gold Floral Cluster Ruby and Diamond Mini Stud Earrings

By OGI Ltd

Located in New York, NY

A Dainty Fusion of Color and Elegance Add a pop of vivid color to your everyday look with these 14K Yellow Gold Floral Cluster Stud Earrings, showcasing Burmese rubies and natural g...

Category

2010s American Modern Stud Earrings

Materials

Diamond, Ruby, Gold, 14k Gold, Yellow Gold

Certified Jade, Ruby, Diamond & Enameled Dragonfly Pendant / Brooch. Exquisite!
Certified Jade, Ruby, Diamond & Enameled Dragonfly Pendant / Brooch. Exquisite!

Certified Jade, Ruby, Diamond & Enameled Dragonfly Pendant / Brooch. Exquisite!

Located in Hong Kong, HK

Throughout the brooch are more bright green natural jades and Burma rubies. There is an estimated 0.15cts of round brilliant diamonds in this setting.

Category

2010s Hong Kong Pendant Necklaces

Materials

Diamond, White Diamond, Jade, Ruby, Gold, 18k Gold, White Gold, Enamel

French Victorian 39.00 Ct Australian Opal 6.00 Ct Rubies Large Brooch
French Victorian 39.00 Ct Australian Opal 6.00 Ct Rubies Large Brooch

French Victorian 39.00 Ct Australian Opal 6.00 Ct Rubies Large Brooch

Located in Napoli, IT

Rare Find This truly unique large brooch is Victorian period, France 1890 ca – bearing French hallmarks from the period Impressive 39.00 Ct Natural Australian Opal, rare size to come...

Category

Antique Late 19th Century French Victorian Brooches

Materials

Opal, Ruby, 18k Gold

Marquise Shape Ruby and Diamond Cluster Ring, circa 1910
Marquise Shape Ruby and Diamond Cluster Ring, circa 1910

Marquise Shape Ruby and Diamond Cluster Ring, circa 1910

Located in London, GB

Marquise shape ruby and diamond cluster ring. Set centrally with a cushion shape old cut natural unenhanced Burmese ruby in an open back claw setting with an approximate weight of 1....

Category

Vintage 1910s Unknown Cluster Rings

Materials

Diamond, Ruby, Yellow Gold, Platinum

Belle Epoque Emerald, Ruby and Diamond Ring w Openwork Band
Belle Epoque Emerald, Ruby and Diamond Ring w Openwork Band

Belle Epoque Emerald, Ruby and Diamond Ring w Openwork Band

Located in Baltimore, MD

Gemological Information: Cushion cut diamond natural .5 carats (50 pts) H color S/I Cushion Cut Burmese Natural Ruby, 53 points, unheated Emerald Cut Colombian Emerald of .37 cara...

Category

Antique 19th Century French Belle Époque More Rings

Materials

Diamond, Emerald, Ruby, 18k Gold

3.31 Carat Oval Ruby & Diamond Statement Ring in 18K White Gold
3.31 Carat Oval Ruby & Diamond Statement Ring in 18K White Gold

3.31 Carat Oval Ruby & Diamond Statement Ring in 18K White Gold

Located in Chicago, IL

3.3 Carat Oval Ruby & Diamond Statement Ring in 18K White Gold This striking statement ring showcases two natural oval-shaped Pigeon Blood Burma rubies with a combined weight of app...

Category

2010s American Contemporary Cocktail Rings

Materials

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

Oval Cut Ruby and Pavé Diamond Teardrop Pendant in 18 Karat White Gold
Oval Cut Ruby and Pavé Diamond Teardrop Pendant in 18 Karat White Gold

Oval Cut Ruby and Pavé Diamond Teardrop Pendant in 18 Karat White Gold

Located in Scottsdale, AZ

Metal: 18 karat White Gold Ruby Weight: 0.86 CTW Ruby Shape: Oval Ruby Cut: Oval cut / mixed cut Ruby Color: Red Ruby Transparency: Transparent Ruby Variety: Ruby Ruby Mineral Type: ...

Category

21st Century and Contemporary Unknown Contemporary Pendant Necklaces

Materials

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

EDWARDIAN 1900 Stick Pin In 18Kt Gold Platinum Diamonds Rubies & Moonstone
EDWARDIAN 1900 Stick Pin In 18Kt Gold Platinum Diamonds Rubies & Moonstone

EDWARDIAN 1900 Stick Pin In 18Kt Gold Platinum Diamonds Rubies & Moonstone

Located in Miami, FL

Rubies: Mount in the base in inlaid settings, with 16 calibrated round cabochons cut of natural Burmese vivid red rubies, with a weight of about 0.32 carats.

Category

Antique Early 1900s American Edwardian Brooches

Materials

Diamond, Moonstone, Ruby, White Diamond, Gold, Yellow Gold, Platinum, 18...

Antique 18k Gold Gia Emerald Ruby Diamond & Pearl Large Fly Insect Pin Brooch
Antique 18k Gold Gia Emerald Ruby Diamond & Pearl Large Fly Insect Pin Brooch

Antique 18k Gold Gia Emerald Ruby Diamond & Pearl Large Fly Insect Pin Brooch

Located in Montclair, NJ

Comes with original GIA certifications for the emerald & ruby. Excellent condition! Stock Number: MK-780200341-PAR --Emerald Certification Details:-- Laboratory: GIA Report Number: ...

Category

21st Century and Contemporary Brooches

Materials

Diamond, Emerald, Pearl, Ruby, 18k Gold

IGI Certified 2.23 Carat Ruby & 1.30 Carat Diamond Earrings in 18K White Gold
IGI Certified 2.23 Carat Ruby & 1.30 Carat Diamond Earrings in 18K White Gold

IGI Certified 2.23 Carat Ruby & 1.30 Carat Diamond Earrings in 18K White Gold

Located in KOWLOON, HK

The earring weighs 4.72 grams. The rubies are highly saturated in color . Accompanied by IGI report #10J1307620 stating natural ruby with Burmese origin.

Category

2010s Hong Kong Modern Stud Earrings

Materials

Diamond, Ruby, White Gold

Bochic “Orient” Vintage Emerald, Ruby & Diamond Ring Set In 18K Gold & Silver
Bochic “Orient” Vintage Emerald, Ruby & Diamond Ring Set In 18K Gold & Silver

Bochic “Orient” Vintage Emerald, Ruby & Diamond Ring Set In 18K Gold & Silver

By Bochic

Located in New York, NY

Bochic “Orient” Vintage Retro Emerald, Ruby & Diamond Ring Set In 18K Gold & Silver Natural Red Ruby From Burma, Oval Cut 9 Carat Natural Green Emerald from Zambia, Round Cut 3 ...

Category

Late 20th Century Thai Retro Cluster Rings

Materials

Diamond, Emerald, Ruby, 18k Gold, Silver

Wide 18K Yellow Gold Etruscan Revival Band Ring with Ruby Center and Diamonds
Wide 18K Yellow Gold Etruscan Revival Band Ring with Ruby Center and Diamonds

Wide 18K Yellow Gold Etruscan Revival Band Ring with Ruby Center and Diamonds

Located in Palm Beach, FL

This dramatic and highly detailed 18K yellow gold Etruscan Revival ring embodies wonderful style, quality materials, and exquisite workmanship. One oval cabochon natural ruby, probab...

Category

Mid-20th Century American Etruscan Revival Band Rings

Materials

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

GARRARD & CO 1930 Art Deco Platinum Clips Earrings 4.38 Cts VS Diamonds & Rubies
GARRARD & CO 1930 Art Deco Platinum Clips Earrings 4.38 Cts VS Diamonds & Rubies

GARRARD & CO 1930 Art Deco Platinum Clips Earrings 4.38 Cts VS Diamonds & Rubies

By Garrard & Co. Ltd.

Located in Miami, FL

The earrings have been crafted in solid .900/.999 platinum and embellished with a great selection of sixty-two natural earth mined gemstones, such; white colorless diamonds and vivid...

Category

Vintage 1930s English Art Deco Clip-on Earrings

Materials

Diamond, Ruby, White Diamond, Platinum

14K Gold GIA Ruby Diamond & Carved Emerald 3D Bird on Branch Brooch Pin Pendant
14K Gold GIA Ruby Diamond & Carved Emerald 3D Bird on Branch Brooch Pin Pendant

14K Gold GIA Ruby Diamond & Carved Emerald 3D Bird on Branch Brooch Pin Pendant

Located in Montclair, NJ

Comes with original GIA certification for the ruby. Stock Number: MK-490150533-23121622-EY --Certification Details:-- Laboratory: GIA Report Type: Ruby Origin Report Report Number:...

Category

21st Century and Contemporary Brooches

Materials

Diamond, Emerald, Ruby, 14k Gold, Yellow Gold

Set in 18K Gold, carved Emerald, Blue Sapphires, Rubies & Diamonds Cocktail Ring
Set in 18K Gold, carved Emerald, Blue Sapphires, Rubies & Diamonds Cocktail Ring

Set in 18K Gold, carved Emerald, Blue Sapphires, Rubies & Diamonds Cocktail Ring

By JEWEL HUB

Located in Hong Kong, HK

The carved Blue Sapphires and Rubies are completely natural, without any treatment and are of Burmese and Mozambique origin respectively.

Category

21st Century and Contemporary Indian Art Deco Cocktail Rings

Materials

Diamond, Emerald, Ruby, Blue Sapphire, 18k Gold

CARTIER Paris Baiser Du Dragon Band Ring In 18Kt Gold With Diamonds & Rubies
CARTIER Paris Baiser Du Dragon Band Ring In 18Kt Gold With Diamonds & Rubies

CARTIER Paris Baiser Du Dragon Band Ring In 18Kt Gold With Diamonds & Rubies

By Cartier

Located in Miami, FL

The ring is embellished with a fabulous selection of one-hundred-twenty-three natural earth mined gemstones, including: calibrated white colorless VS diamonds and well matched Burmes...

Category

21st Century and Contemporary French Modernist Band Rings

Materials

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

RENE BOIVIN Paris 1940 Art Deco Convertible Pendant Brooch In 18Kt Gold & Rubies
RENE BOIVIN Paris 1940 Art Deco Convertible Pendant Brooch In 18Kt Gold & Rubies

RENE BOIVIN Paris 1940 Art Deco Convertible Pendant Brooch In 18Kt Gold & Rubies

By René Boivin

Located in Miami, FL

It is embellished with a great assortment of fifteen natural Burmese vivid red rubies. The rubies in this piece Ruby can be one of the highest-priced, among the others color gemsto...

Category

Vintage 1940s French Art Deco Brooches

Materials

Ruby, Gold, Yellow Gold, 18k Gold

Pink Rubelite Tourmaline and Ruby Forget Me Knot Ring in 18ct Rose Gold
Pink Rubelite Tourmaline and Ruby Forget Me Knot Ring in 18ct Rose Gold

Pink Rubelite Tourmaline and Ruby Forget Me Knot Ring in 18ct Rose Gold

Located in Brisbane, AU

Designed as a contemporary unisex piece, it is a powerful expression of OHLIGUER's distinctive aesthetic. • 6ct natural pink tourmaline • Burmese ruby-set band • Handcrafted in 18ct ...

Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Ruby, Tourmaline, 18k Gold, Rose Gold

Pair of 18k Gold Gia 5ctw Square Channel Set Ruby Matching Guards Bands Sz 4
Pair of 18k Gold Gia 5ctw Square Channel Set Ruby Matching Guards Bands Sz 4

Pair of 18k Gold Gia 5ctw Square Channel Set Ruby Matching Guards Bands Sz 4

Located in Montclair, NJ

--Stone(s):-- (44) Natural Genuine Burma Rubies - Square Step Cut - Channel Set - Vivid Clear Red Color - **See Certifications Details Below** Total Carat Weight: 5.0 (approx.)

Category

21st Century and Contemporary Band Rings

Materials

Ruby, 18k Gold

GUCCI 1970 Milano Secret-Box Ball Pendant In 18Kt Gold With 8.35 Ctw Rubies
GUCCI 1970 Milano Secret-Box Ball Pendant In 18Kt Gold With 8.35 Ctw Rubies

GUCCI 1970 Milano Secret-Box Ball Pendant In 18Kt Gold With 8.35 Ctw Rubies

By Gucci

Located in Miami, FL

It was carefully crafted in solid yellow gold of 18 karats and embellished with one-hundred-nineteen earth mined natural Burmese vivid red rubies. The box is fitted with concealed th...

Category

Vintage 1970s Italian Modernist Pendant Necklaces

Materials

Ruby, Gold, Yellow Gold, 18k Gold

Raymond Yard 1935 Art Deco Earrings In Platinum With 3.09 Ctw Rubies Diamonds
Raymond Yard 1935 Art Deco Earrings In Platinum With 3.09 Ctw Rubies Diamonds

Raymond Yard 1935 Art Deco Earrings In Platinum With 3.09 Ctw Rubies Diamonds

By Raymond C. Yard

Located in Miami, FL

They are embellished with a great selection of natural and earth mined gemstones, such twenty Burmese rubies and twenty white colorless diamonds.

Category

Vintage 1930s American Art Deco Lever-Back Earrings

Materials

Diamond, White Diamond, Ruby, Platinum

Raymond Yard 1935 Art Deco Brooch In Platinum With 4.82 Ctw Rubies Diamonds
Raymond Yard 1935 Art Deco Brooch In Platinum With 4.82 Ctw Rubies Diamonds

Raymond Yard 1935 Art Deco Brooch In Platinum With 4.82 Ctw Rubies Diamonds

By Raymond C. Yard

Located in Miami, FL

It is embellished with a great selection of natural and earth mined gemstones, such fifteen large Burmese rubies and fifteen white colorless diamonds.

Category

Vintage 1930s American Art Deco Brooches

Materials

Diamond, White Diamond, Ruby, Platinum

Cartier 1970 Sculpted Dragon Brooch In 18Kt Yellow Gold With Rubies And Emerald
Cartier 1970 Sculpted Dragon Brooch In 18Kt Yellow Gold With Rubies And Emerald

Cartier 1970 Sculpted Dragon Brooch In 18Kt Yellow Gold With Rubies And Emerald

By Cartier

Located in Miami, FL

Despite cultural differences, the common thread of dragon symbolism creates a bond that transcends borders. Rubies: The nose is mounted in inlaid settings, with 2 round cabochon cu...

Category

Vintage 1970s French Modernist Brooches

Materials

Emerald, Ruby, Gold, 18k Gold, Yellow Gold

Certified Natural Icy Jade 16mm x 13.8mm & Diamond Pendant. Musical Lute!
Certified Natural Icy Jade 16mm x 13.8mm & Diamond Pendant. Musical Lute!

Certified Natural Icy Jade 16mm x 13.8mm & Diamond Pendant. Musical Lute!

Located in Hong Kong, HK

Here is a rare ICY Jade and natural diamond pendant. This musical lute pendant is set in 18k yellow gold with a nice imperial green jade, natural diamonds, Burma rubies and an impres...

Category

2010s Hong Kong Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Jade, Ruby, Gold, 18k Gold, Yellow Gold

Victorian 1890 Pendant Locket in 18kt Gold with 9.44ctw Diamonds Rubies Emerald
Victorian 1890 Pendant Locket in 18kt Gold with 9.44ctw Diamonds Rubies Emerald

Victorian 1890 Pendant Locket in 18kt Gold with 9.44ctw Diamonds Rubies Emerald

Located in Miami, FL

Rubies: Mount in floreated bezels, with 3 round cut of natural vivid red Burmese Rubies, with 2.40 carats.

Category

Antique 1890s English High Victorian Pendant Necklaces

Materials

Diamond, White Diamond, Emerald, Ruby, Gold, 18k Gold, Yellow Gold, Silver

Boucheron 1937 Paris Art Deco Bracelet 18Kt Gold and 5.44 Ctw Diamonds & Rubies
Boucheron 1937 Paris Art Deco Bracelet 18Kt Gold and 5.44 Ctw Diamonds & Rubies

Boucheron 1937 Paris Art Deco Bracelet 18Kt Gold and 5.44 Ctw Diamonds & Rubies

By Boucheron

Located in Miami, FL

The bracelet has been designed with retro-modernist patterns and is embellished with a gorgeous selection of fifty earth mined, natural gemstones such: Burmese translucent rubies and...

Category

Vintage 1930s French Art Deco Retro Bracelets

Materials

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

AIG Certified 49.90 Ct Emeralds Ruby Tanzanites Tourmaline Diamonds Earrings
AIG Certified 49.90 Ct Emeralds Ruby Tanzanites Tourmaline Diamonds Earrings

AIG Certified 49.90 Ct Emeralds Ruby Tanzanites Tourmaline Diamonds Earrings

Located in New Delhi, Delhi

Earrings come in 18k gold with 2 pieces of natural Zambia emeralds, in cabochon cut , 20,41 carats, fine grade, 2 pieces of natural tanzanites 17,28 carats, fine quality, and a natu...

Category

21st Century and Contemporary Chandelier Earrings

Materials

18k Gold

GCS Certified Natural Myanmar/ Burmese Ruby 2.3 ct & Diamond Ring, Vintage 1950s
GCS Certified Natural Myanmar/ Burmese Ruby 2.3 ct & Diamond Ring, Vintage 1950s

GCS Certified Natural Myanmar/ Burmese Ruby 2.3 ct & Diamond Ring, Vintage 1950s

Located in London, GB

Burmese ruby – widely celebrated as the most important ruby in the world. 1 x GCS certified states that natural untreated Burmese ruby, approximate weight 2.3 carats 36 x round old ...

Category

Vintage 1940s Retro Dome Rings

Materials

Diamond, Ruby, Platinum

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Natural Burmese Ruby For Sale on 1stDibs

Find the exact natural burmese ruby you’re shopping for in the variety available on 1stDibs. Frequently made of Gold, 18k Gold and Platinum, this item was constructed with great care. Find an antique version now, or shop for 134 vintage or 84 modern creation for a more contemporary example of these cherished accessories. If you’re looking for a natural burmese ruby 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. Finding an appealing natural burmese ruby — no matter the origin — is easy, but Iris Fine Jewelry, Bulgari and Boucheron each produced a popular version that is worth a look. See these pages for an oval cut iteration of this accessory, while there are also round cut cut and cushion cut cut versions available here, too. If you’re browsing our inventory for a natural burmese ruby, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a Natural Burmese Ruby?

Prices for a natural burmese ruby can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1,800 and can go as high as $1,933,437, while this accessory, on average, fetches $14,852.

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.