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Grey Star Sapphire Ring

Preowned Vintage 14K White Gold Grey Star Sapphire Ring with Diamonds
Located in Old Tappan, NJ
Preowned vintage 14K white gold flush set ring with one oval shape grey color star sapphire and two
Category

Vintage 1960s Unknown Fashion Rings

Materials

Diamond, Star Sapphire, 14k Gold, White Gold

12 Carat "Octopus" Ring in Gold with Star Ruby, Parti Sapphire & Star Sapphires
By Eytan Brandes
Located in Sherman Oaks, CA
stone is a 2.92 carat silver-grey sapphire with unusual golden needle inclusions. It's also a star
Category

2010s American Contemporary Cocktail Rings

Materials

Ruby, Sapphire, Blue Sapphire, Star Sapphire, Star Ruby, Gold, 14k Gold,...

9ct Natural Star Sapphire Ring Six Point Diamond Vintage 18k Gold Blue Grey 9.5
Located in Torrance, CA
Stylish vintage natural star sapphire 7 diamond ring (circa 1980s to 1990s) crafted in 18 karat
Category

Late 20th Century Unknown Modern Cocktail Rings

Materials

Diamond, White Diamond, Sapphire, Star Sapphire, Gold, 18k Gold, Yellow ...

Vintage 18ct Star Sapphire & Diamond Platinum Ring
Located in Scotts Valley, CA
Details: This fabulous ring is a show stopper! The star sapphire is a beautiful misty blue grey
Category

Early 20th Century American Art Deco Cocktail Rings

Materials

Diamond, Star Sapphire, Platinum

14K White Gold Grey Cabochon Star Sapphire Diamond Ring Size 6.25 #16957
Located in Washington Depot, CT
This lovely ring features one oval grey cabochon star sapphire (11 mm x 9 mm) and two round
Category

21st Century and Contemporary Engagement Rings

Materials

White Diamond, Blue Sapphire, Gold, 14k Gold, White Gold

Star Sapphire and Diamond Pinky Ring, 18k Yellow Gold
Located in Honolulu, HI
Star Sapphire and Diamond Pinky Ring - 18k Yellow Gold. This ring features a cabochon star sapphire
Category

21st Century and Contemporary Unknown Modern Cocktail Rings

Materials

Star Sapphire, Diamond, 18k Gold, Yellow Gold

Kent Raible 18 karat Gold Pale Blue Star Sapphire Solitaire Ring
By Kent Raible
Located in Mossrock, WA
detailed ring featuring the soft glow of an unheated, perfectly pale blue-grey natural star sapphire
Category

2010s American Artisan Solitaire Rings

Materials

Star Sapphire, Blue Sapphire, Sapphire, 18k Gold, Gold

Retro Signed 14K Gold, Diamond & Star Sapphire Owl Cocktail Ring
Located in Philadelphia, PA
diamonds across the owl's face and with grey star sapphire cabochons as eyes. Simply a terrific cocktail
Category

Mid-20th Century Unknown Retro Cocktail Rings

Materials

Diamond, Star Sapphire, 14k Gold

Star Sapphire Diamond Men's White Gold Three-Stone Ring
Located in Stamford, CT
Vintage 1940 solid 14k white gold star sapphire and diamond men’s ring. GIA certified natural light
Category

Vintage 1940s Three-Stone Rings

Materials

Diamond, Sapphire, Star Sapphire, 14k Gold, White Gold

Grey Spinel Ring Oval 2.49 Carats
By Merkaba
Located in Beverly Hills, CA
Very unique 2.49 carat Grey Spinel oval, 18K white gold ring, decorated with a total of 0.09 carat
Category

21st Century and Contemporary American Victorian Engagement Rings

Materials

Spinel, Multi-gemstone, White Diamond, Diamond, White Gold, 18k Gold

Grey Blue Spinel Ring 5.20 Carat Oval
By Merkaba
Located in Beverly Hills, CA
18K rose gold unisex ring set with a rare and remarkable 5.20 carat Grey-Blue oval Spinel, and a
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Spinel, Multi-gemstone, White Diamond, Diamond, Rose Gold, 18k Gold

Blue Grey Spinel Ring 5.30 Carat Round
By Merkaba
Located in Beverly Hills, CA
Extraordinary 5.30 carat Blue-Grey Spinel Round, 18K rose gold ring, decorated with a pair of 0.26
Category

21st Century and Contemporary American Art Deco Engagement Rings

Materials

Spinel, Multi-gemstone, White Diamond, Diamond, Rose Gold, 18k Gold

Grey Violet Spinel Ring 6.18 Carat Emerald Cut
By Merkaba
Located in Beverly Hills, CA
Exceptional 6.18 carat, flawless Grey-Purple Spinel emerald-cut platinum ring, decorated with a
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Spinel, Multi-gemstone, White Diamond, Diamond, Platinum

Grey Violet Spinel Ring 3.14 Carat Cushion Cut
By Merkaba
Located in Beverly Hills, CA
Garnet, Chrome Tourmaline, Cat's Eye Chrysoberyl, Star Ruby and Star Sapphire, Demantoid Garnet
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Spinel, Multi-gemstone, White Diamond, Diamond, Platinum

2.11 Carat GIA Certified Sapphire Diamond Platinum Three-Stone Engagement Ring
Located in Stamford, CT
Natural GIA certified color change Sapphire and diamond engagement ring. The GIA 2.11ct oval
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Platinum

Gray Blue Spinel Ring 4.15 Carat Round
By Merkaba
Located in Beverly Hills, CA
Ultra exclusive 4.15 carat, "loupe clean", round, Grey-Blue "Ceylon" (Sri Lanka) Spinel platinum
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, White Diamond, Multi-gemstone, Spinel, Platinum

14 Karat Gold and Enamel Shield Fob with Sapphire Trillion on Gold Rolo chain
Located in New York, NY
gold shield design and a center blue sapphire trillion. It hangs from a chunky oval jump ring with a
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Sapphire, Gold, 14k Gold, Enamel

Art Deco Platinum Multi Stone Charm Bracelet
Located in Narberth, PA
. The clown charm features a grey/purple cabochon star sapphire accented by diamonds with a ruby collar
Category

Vintage 1920s Unknown Art Deco Charm Bracelets

Materials

Diamond, Emerald, Ruby, Blue Sapphire, Star Sapphire, Platinum

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Blue Star Sapphire Diamond Antique Ring
Located in Berkeley, CA
This stunning blue star sapphire ( aprox. 1 1/4 ct) ring is surrounded by a halo of old mine cut diamonds ( total weight aprox. 0.60 ct.) The Late Victorian period was a prolific tim...
Category

Antique 1890s American Victorian Solitaire Rings

Materials

Diamond, Star Sapphire, 14k Gold

Blue Star Sapphire Ring Set in 18 Karat Gold Settings
Located in Bangkok, TH
Blue Star Sapphire 2.39 carats Ring set in 18 Karat Gold Settings Width: 1.0 cm Length: 1.2 cm Ring Size: 51 Total Weight: 5.15 grams "We first opened doors in 1980 when it was t...
Category

2010s Thai Solitaire Rings

Materials

Star Sapphire, Gold, 18k Gold

Mid-Century Star Sapphire and Diamond Platinum Ring, circa 1950s
Located in Beverly Hills, CA
One mid-century star sapphire and diamond platinum ring featuring one oval cabochon, star sapphire weighing 40 ct. surrounded by 56 round brilliant cut diamonds weighing 2 ct. Sapphi...
Category

Vintage 1950s Cocktail Rings

Materials

Diamond, Star Sapphire, Platinum

6.00 Carat Star Sapphire Diamond Platinum Ring
Located in Beverly Hills, CA
A stylish and brilliant ring featuring a 6.00 carat star sapphire. It has an even soft blue color along with a strong 6-rayed star when a light hits its top. Dazzling the sapphire ar...
Category

21st Century and Contemporary American Fashion Rings

Materials

Diamond, Star Sapphire, Platinum

1920s Art Deco Platinum Star Sapphire and Diamond Ring
Located in Torino, IT
Extremely chic 1920s Art Deco Platinum Star Sapphire and Diamond Ring. The gorgeous oval shaped Sugar Loaf is a no-heat Ceylon Star Sapphire in a simple four claws Platinum setting, ...
Category

Vintage 1920s American Art Deco Engagement Rings

Materials

Diamond, Star Sapphire, Platinum

32.0 Carat Star Sapphire, Platinum and Diamond Ring, with GIA certificate
Located in New York, NY
This stunning antique art deco star sapphire and diamond ring is crafted in solid platinum, weighing 12.8 grams and measuring 20mm wide and 13mm high. Exposing a one prominent prong-...
Category

Vintage 1920s Unknown Art Deco Dome Rings

Materials

Diamond, Star Sapphire, Platinum

Black Star Sapphire Ring Set in 18 Karat Gold Settings
Located in Bangkok, TH
Black Star Sapphire 2.17 carats Ring set in 18 Karat Gold Settings Width: 1.3 cm Length: 0.9 cm Ring Size: 52 Total Weight: 7.39 grams "We first opened doors in 1980 when it was...
Category

2010s Thai Contemporary More Rings

Materials

Star Sapphire, Black Star, Gold, 18k Gold

GIA Certified No Heat Ceylon Star Sapphire 7.35 Carat Finger Size 10 Dome Ring
Located in New York, NY
Indulge in the mesmerizing allure of this exquisite natural Ceylon star sapphire solitaire ring, 14 Karat Yellow Gold, boasting a substantial weight of 7.35 carats. Accompanied by a ...
Category

Late 20th Century American Contemporary Solitaire Rings

Materials

Star Sapphire, Gold, 14k Gold, Yellow Gold

Set in PT900, 2.72 Carats Natural Blue Star Sapphire & Diamonds Engagement Ring
By JEWEL HUB
Located in Hong Kong, HK
A very gorgeous and beautiful Blue Star Sapphire Ring set in Platinum 900 & Diamonds. The weight of the Star Sapphire is 2.72 carats. The Star Sapphire is completely natural and is w...
Category

21st Century and Contemporary Hong Kong Modern Engagement Rings

Materials

Diamond, Star Sapphire, Platinum

Cabochon Star Sapphire and Diamond Men's Ring
Located in New York, NY
Cabochon Star Sapphire & Diamond Men's Ring Approximate Sapphire Weight: 9.71 Cts Diamond Weight: .16 Cts Ring Size: 7 Re-sizable free of charge
Category

Vintage 1980s American Solitaire Rings

Materials

Diamond, Sapphire, Star Sapphire, 14k Gold

Platinum Hand Engraved Star Sapphire and Diamond Ring
Located in Big Bend, WI
Platinum ring featuring a light blue/gray cabochon star sapphire. The sapphire measures about 8.7mm x 7.2mm. There are 4 small round diamond accents, 2 measuring about 1.8mm and 2 ab...
Category

Antique Early 1900s Cocktail Rings

Materials

Diamond, Star Sapphire, Platinum

Men’s Retro 10 Carat Gold Ring Natural Cabochon Bluish Star Sapphire Gem Stone
Located in Los Angeles, CA
Men’s Retro 18k Yellow Gold Ring. Natural 10 Carat (approximate) Cabochon Bluish Star Sapphire measuring 11.1x10x8.6mm. The star most visible outdoors in daylight, an accurate image...
Category

Vintage 1970s Unknown Retro Dome Rings

Materials

Star Sapphire, Gold, 18k Gold

Art Deco Star Sapphire and Diamond Platinum Ring
Located in Beverly Hills, CA
Art Deco star sapphire and diamond platinum ring featuring one oval cabochon cut, grayish blue star sapphire weighing 36 ct. further accented by old European, single round cut and pe...
Category

Vintage 1930s Art Deco Dome Rings

Materials

Diamond, Star Sapphire, Platinum

Spessartite Garnet Cabochon ring in 22 Karat gold
By Pamela Farland
Located in New York, NY
This beautiful Spessartite Garnet cabochon ring in 22 Karat gold with granulation, illustrates how ancient jewelry techniques are applied to contemporary tastes. The cabochon Garne...
Category

21st Century and Contemporary American Artist Solitaire Rings

Materials

Garnet, 22k Gold

4.60 Carat Blue Ceylon Star Sapphire Cabochon Solitaire Ring 18 Carat Gold
Located in Hamilton, AU
Forged in 18 carat yellow gold, this opulent solitaire vintage ring features an enchanting and rare 4.60 carat Ceylon blue cabochon star sapphire in a darling rubover setting. The ca...
Category

20th Century Unknown Modern Solitaire Rings

Materials

Sapphire, Star Sapphire, Gold, 18k Gold, Yellow Gold

1.72 Violet-Gray Star Sapphire & Diamond Halo Band Ring in 18k White Gold
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This ring is a beautiful statement of both quiet elegance and originality. Featuring a violetish-grey star sapphire with a bright 6-rayed star when viewed in focused light, this ring...
Category

21st Century and Contemporary American Artisan Band Rings

Materials

Star Sapphire, Sapphire, White Diamond, Diamond, Gold, White Gold, 18k Gold

Recent Sales

4.66 Carat Lilac-Grey Star Sapphire Ring with an 18 Karat White Gold Carved Band
By KATA Jewellery
Located in London, GB
4.66ct Lilac Grey Star Sapphire Cabochon Ring with an 18k White Gold Carved Band. The star
Category

2010s British Band Rings

Materials

Star Sapphire, Gold, 18k Gold, White Gold

Art Deco Star Sapphire Ring
Located in London, GB
An Art Deco star sapphire ring, the high blue/grey cabochon flanked by diamond set shoulders
Category

Vintage 1930s American Art Deco Cocktail Rings

Materials

Diamond, Star Sapphire, Platinum

13.40 Carat Natural Star Sapphire Diamond Vintage Ring
Located in Napoli, IT
Star Sapphire of light grey with six pointed star phenomena 13.40 Ct estimate on mounting Sleek elegant
Category

Vintage 1950s Contemporary More Rings

Materials

Diamond, Star Sapphire, 18k Gold

1930s Art Deco Star Sapphire Diamond Platinum Handmade Engagement Ring
Located in Sydney CBD, AU
Very nice 1930's Handmade Star Sapphire, Sapphire and Diamond Platinum ring As Star Sapphire have
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, Star Sapphire, Platinum

Lizunova Grey Spinel and Diamond 18 Karat White Gold Double Band Ring
By Lizunova Fine Jewels
Located in Sydney, NSW
Renaissance-time Verona, the city of love and the birthplace of Shakespeare's star-crossed lovers
Category

21st Century and Contemporary Australian Contemporary Bridal Rings

Materials

Diamond, White Diamond, Spinel, 18k Gold, White Gold

Fabergé Katharina 18K White Gold 51.09ct Ring w/ Diamonds & Sapphires US Clients
By Fabergé
Located in London, GB
sapphires, set in 18 karat white gold. Additional Information: Details: 18k white gold 1 star cut oval grey
Category

2010s British More Rings

Materials

White Diamond, White Gold

Temple St. Clair Grey Star Sapphire Emerald Diamond Athena Owl Ring
By Temple St. Clair
Located in Birmingham, AL
by a halo of round diamonds. The head of the owl is made up of 19 grey star sapphires and 6 smaller
Category

2010s Italian Modern Fashion Rings

Materials

Diamond, White Diamond, Emerald, Sapphire, Blue Sapphire, Star Sapphire,...

Art Deco Star Sapphire Platinum Ring
Located in Beverly Hills, CA
A well defined star blue grey sapphire that weighs approximately 13 carats. Set in a detailed hand
Category

Early 20th Century American Art Deco More Rings

Materials

Diamond, Star Sapphire, Platinum

Art Deco Star Sapphire Diamond Platinum Ring
Located in Beverly Hills, CA
bluish-grey star sapphire that is accompanied with an eternity band of diamonds and elegantly hand carved
Category

Vintage 1930s American Art Deco Engagement Rings

Materials

Diamond, Sapphire, Star Sapphire, Platinum

Vintage Gray Silver Star Sapphire and Diamond Ring
Located in Denver, CO
A bold oval-shaped grey cabochon silver star sapphire measuring 13x16mm sits at the center of this
Category

Mid-20th Century Unknown Retro Cocktail Rings

Materials

Diamond, Star Sapphire, 14k Gold, White Gold

Art Deco 16.00 Carat Star Sapphire Diamond Platinum Ring
Located in Beverly Hills, CA
One Art Deco 16.00 Carat Star Sapphire Diamond Platinum Ring. Featuring one star sapphire weighing
Category

Vintage 1930s American Art Deco Cocktail Rings

Materials

Diamond, Star Sapphire, Platinum

1920s 3 Carat Star Sapphire and 0.25 Carat Diamond 14 Karat White Gold Ring
Located in Atlanta, GA
1920s Art Deco Star Sapphire Ring - 14k White Gold, Star Sapphire, Diamonds Features a 3 carat
Category

Early 20th Century Unknown Art Deco Cocktail Rings

Materials

Star Sapphire, 14k Gold, White Gold

Art Deco Natural No Heat Burma Blue Star Sapphire Set in Platinum
Located in Cape May, NJ
Antique Art Deco Platinum Diamond & 7.63 Carat Natural Blue Star Sapphire Ring. The ring is in
Category

Vintage 1930s American Art Deco Engagement Rings

Materials

Blue Sapphire, Diamond, Platinum

Retro Pearl Sapphire Diamond Gold Ring
Located in Beverly Hills, CA
pearls perfectly separated by blueish grey star sapphires and thoughtfully placed white, clean diamonds
Category

Vintage 1940s American Retro Cocktail Rings

Materials

Pearl, Sapphire, 14k Gold

Star Sapphire Ring Gem 12.74 Carat No Heat Unset Loose Gemstone
By Tamir
Located in Beverly Hills, CA
Unheated 12.74 carat bluish grey Star Sapphire gem, offered loose to a classy lady or gentleman
Category

21st Century and Contemporary Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire, Star Sapphire

1930s Art Deco Star Sapphire Diamond Platinum Ring
Located in Narberth, PA
A beautiful star sapphire ring from the Art Deco (ca1930) era! This alluring ring holds a large
Category

Vintage 1920s Art Deco Dome Rings

Materials

Diamond, Star Sapphire, Platinum

1970s Arthur King Star Sapphires and Diamond Modernist Gold Dome Ring
By Arthur King
Located in Miami Beach, FL
Attractive Large multicolor star sapphire and diamond ring by Arthur King. The abstract sculpted
Category

Mid-20th Century Modernist Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold

1970s Gold and Sapphire Modernist Ring by Louis Perrier
Located in Cincinnati, OH
8.3 x 7.7mm blue-grey star sapphire ( approximately 2.00 cts) Hand made by Canadian studio jeweler
Category

Vintage 1970s Canadian Modernist Fashion Rings

Materials

Star Sapphire, 18k Gold

Art Deco Blue-Grey Star Sapphire Diamond Platinum Cocktail Ring
Located in Houston, TX
This is a striking star sapphire set in platinum with diamonds. It is fitted with a fingermate
Category

Vintage 1920s Unknown Art Deco Cocktail Rings

Materials

Diamond, Star Sapphire, Platinum

30 Carat Oval Star Sapphire Ring
Located in Aliso Viejo, CA
This timeless star sapphire 18k white gold ring contains the following. One oval White to light
Category

Vintage 1950s American Retro Cocktail Rings

Materials

Star Sapphire, 18k Gold

18 Karat Yellow Gold Star Sapphire Ring
By Friederike Grace
Located in Dublin 2, Dublin 2
. Friederike has used a gorgeous grey/blue cabochon cut star sapphire in her signature design, perfectly bezel
Category

2010s Irish Contemporary Solitaire Rings

Materials

Star Sapphire, 18k Gold, Yellow Gold

Art Deco 26 Carat Star Sapphire Ring
Located in San Francisco, CA
A lavender grey blue 26 carat star sapphire with a distinct and shimmering six-legged star is the
Category

Early 20th Century Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Platinum

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Grey Star Sapphire Ring For Sale on 1stDibs

Find the exact grey star sapphire ring you’re shopping for in the variety available on 1stDibs. Frequently made of gold, yellow gold and 18k gold, this item was constructed with great care. Our collection of these items for sale includes 15 vintage editions and 7 modern creations to choose from as well. Making the right choice when shopping for a grey star sapphire ring may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 20th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. As it relates to this specific piece, our collection includes designs that are universally popular, but 4.5 carat and 5 carat carat weights, specifically, are sought with frequency. A grey star sapphire ring from Merkaba and Sarosi By Timeless Gems — each of whom created a beautiful version of this treasured accessory — is worth considering. While most can agree that any grey star sapphire ring from our collection can easily elevate most outfits, but the choice of a sapphire version from the 15 available is guaranteed to add a special touch to your ensemble. Today, if you’re looking for a cabochon version of this piece and are unable to find the perfect match, our selection also includes round cut and emerald cut alternatives. If you’re browsing our inventory for a grey star sapphire ring, 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 Grey Star Sapphire Ring?

The price for a grey star sapphire ring starts at $385 and tops out at $39,800 with these rings, on average, selling for $3,475.

Finding the Right Rings for You

Antique and vintage rings have long held a special place in the hearts of fine jewelry lovers all over the world.

No matter their origin or specific characteristics, rings are timeless, versatile accessories. They’ve carried deep meaning since at least the Middle Ages, when diamond rings symbolized strength and other kinds of rings were worn to signify romantic feelings or to denote an affiliation with a religious order. Rings have also forever been emblematic of eternity.

Over time, rings have frequently taken the form of serpents, which have long been associated with eternal life, health and renewal. Italian luxury jewelry house Bulgari has become famous for its widely loved Serpenti motif, for example, and its Serpenti ring, like the other accessories in the collection, began as an homage to jewelry of the Roman and Hellenistic eras. The serpent is now a popular motif in fine jewelry. Jewelry devotees have long pined for rings adorned with reptiles, thanks to antique Victorian rings — well, specifically, Queen Victoria’s illustrious engagement ring, which took the form of a gold snake set with rubies, diamonds and an emerald (her birthstone). Designs for Victorian-era engagement rings often featured repoussé work and chasing, in which patterns are hammered into the metal.

Engagement rings, which are reliably intimidating to shop for, are still widely recognized as symbols of love and commitment. On 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

The most collectible antique engagement rings and vintage engagement rings are those from the Victorian, Edwardian and Art Deco eras. Named for the monarchies of the four King Georges, who in succession ruled England starting in 1714 (plus King William’s reign), antique Georgian rings, be they engagement rings or otherwise, are also coveted by collectors. Pearls, along with colored gemstones like garnets, rubies and sapphires, were widely used in Georgian jewelry. The late-1700s paste jewelry was a predecessor to what we now call fashion or costume jewelry

The Art Nouveau movement (1880–1910) brought with it rings inspired by the natural world. Antique Art Nouveau rings might feature depictions of winged insects and fauna as well as women, who were simultaneously eroticized and romanticized, frequently with long flowing hair. Art Deco jewelry, on the other hand, which originated during the 1920s and ’30s, is by and large “white jewelry.” White metals, primarily platinum, were favored over yellow gold in the design of antique Art Deco rings and other accessories as well as geometric motifs, with women drawn to the era’s dazzling cocktail rings in particular.

Whether you’re hunting down a chunky classic for a Prohibition-themed cocktail party or seeking a clean contemporary design to complement your casual ensemble, find an exquisite collection of antique, new and vintage rings on 1stDibs.

Questions About Grey Star Sapphire Ring
  • 1stDibs ExpertOctober 12, 2021
    A blue star sapphire has a transparent body with a deep blue color. A blue star sapphire ring’s worth depends on the 4Cs — color, clarity, cut and carat. Prices for a blue star sapphire ring can also differ according to size and time period. These accessories begin at $449 and can cost as much as around $200,000 or more. On 1stDibs, shop a range of vintage blue star sapphire rings.