Skip to main content

20 Ct Amethyst Ring

20 CT Amethyst Diamond 18K Yellow Gold Cocktail Ring
20 CT Amethyst Diamond 18K Yellow Gold Cocktail Ring

20 CT Amethyst Diamond 18K Yellow Gold Cocktail Ring

Located in Westport, CT

An original 18K yellow gold amethyst and diamond ring. Centered with a natural oval shaped amethyst weighing approximately 20.00 CT and measuring approximately 22 × 16 mm, displaying...

Category

Late 20th Century Cocktail Rings

Materials

Amethyst, Diamond, 18k Gold, Yellow Gold, Gold

Recent Sales

18k White Gold 20 ct Amethyst Cocktail Ring with Sapphire and Diamond Accents
18k White Gold 20 ct Amethyst Cocktail Ring with Sapphire and Diamond Accents

18k White Gold 20 ct Amethyst Cocktail Ring with Sapphire and Diamond Accents

Located in Sherman Oaks, CA

Gorgeous Amethyst Cocktail Ring Features Spider Motifs Set with Diamond Whose Legs Set the Appx 20 ct Cushion Cut Amethyst Dimensions of Amethyst = 19.5 mm x 15 mm x 12.5 mm Setting ...

Category

21st Century and Contemporary Unknown Modern Cocktail Rings

Materials

Amethyst, Diamond, Sapphire, 18k Gold, White Gold

Organic Silver 20ct+ Purple Amethyst Ring, accented with 0.70 Ct Diamonds
Organic Silver 20ct+ Purple Amethyst Ring, accented with 0.70 Ct Diamonds

Organic Silver 20ct+ Purple Amethyst Ring, accented with 0.70 Ct Diamonds

By Michael Barin

Located in Granada Hills, CA

The Organic Silver and 20+ CT Purple Amethyst Ring is a unique and captivating piece of jewelry that combines both style and substance.

Category

21st Century and Contemporary American Art Deco Fashion Rings

Materials

Amethyst, Diamond, Silver

Green Amethyst Diamond Organic Silver Cone Ring

Green Amethyst Diamond Organic Silver Cone Ring

By Michael Barin

Located in Carmel by the Sea, CA

Organic Silver and 20+ CT Green Amethyst Ring, accented with 0.80 CT Diamonds around the Center Stone and in the Band.

Category

2010s American Contemporary Cocktail Rings

Materials

Amethyst, Diamond, White Diamond, Silver

Purple Amethyst Diamond Organic Silver Cone Ring

Purple Amethyst Diamond Organic Silver Cone Ring

By Michael Barin

Located in Carmel by the Sea, CA

Organic Silver and 20+ CT Purple Amethyst Ring, accented with 0.70 CT Diamonds around the Center Stone and in the Band.

Category

21st Century and Contemporary American Contemporary Fashion Rings

Materials

Amethyst, Diamond, White Diamond, Silver

Antique 20 ct. Amethyst and Diamond Cocktail Ring
Antique 20 ct. Amethyst and Diamond Cocktail Ring

Antique 20 ct. Amethyst and Diamond Cocktail Ring

Located in New York, NY

This cocktail ring is fit for royalty and has some serious retro vibes. A bevy of fleur de lis style prongs holds the substantial Amethyst at the center of this ornate ring. Between ...

Category

Vintage 1910s Cocktail Rings

Materials

Amethyst, Diamond, 14k Gold, Platinum

People Also Browsed

19.97 Carat Aquamarine and Diamond Set Gold Ring
19.97 Carat Aquamarine and Diamond Set Gold Ring

19.97 Carat Aquamarine and Diamond Set Gold Ring

Located in Litchfield, CT

Circa 1950s, 14k, American. This gorgeous fifties ring is set with a 19.97 carat blue finely hued aquamarine framed by ten dazzling white diamonds totaling .40 carats (H color, VS1 c...

Category

Vintage 1950s American Cocktail Rings

Materials

Aquamarine, White Diamond, Diamond, 14k Gold, White Gold

A vintage pair of rubellite and diamond drop earrings
A vintage pair of rubellite and diamond drop earrings

A vintage pair of rubellite and diamond drop earrings

Located in London, GB

A vintage pair of rubellite and diamond drop earrings, each earring set with an octagonal-cut rubellite, the one weighing 6.90 carats and the other 6.95 carats, each with three small...

Category

Mid-20th Century English Modern Drop Earrings

Materials

Diamond, Rubelite, 18k Gold, White Gold

Australian Opal Diamonds 18 Karat White Gold Cocktail Ring
Australian Opal Diamonds 18 Karat White Gold Cocktail Ring

Australian Opal Diamonds 18 Karat White Gold Cocktail Ring

By SCALA GIOIELLI

Located in Marcianise, IT

Amazing 18 Karat white gold cocktail ring. Handmade by our craftsmen and assembled with Australian opal and diamonds. Diamonds weight 0.80 karat Opal weight 6.96 karat Ring total we...

Category

21st Century and Contemporary Italian Artisan Cocktail Rings

Materials

Diamond, Opal, 18k Gold, White Gold

48.34Ct Aquamarine and 0.70Ct Diamond 18k Yellow Gold and Platinum Necklace
48.34Ct Aquamarine and 0.70Ct Diamond 18k Yellow Gold and Platinum Necklace

48.34Ct Aquamarine and 0.70Ct Diamond 18k Yellow Gold and Platinum Necklace

Located in Jesmond, Newcastle Upon Tyne

A stunning, fine and impressive, large 48.34 carat aquamarine and 0.70cttw diamond, platinum and 18 karat yellow gold necklace; part of our diverse aquamarine jewelry collections. T...

Category

Vintage 1920s Pendant Necklaces

Materials

Aquamarine, Diamond, Yellow Gold, Platinum

30.88 Carat Blue Topaz Diamond 14 Karat White Gold Ring
30.88 Carat Blue Topaz Diamond 14 Karat White Gold Ring

30.88 Carat Blue Topaz Diamond 14 Karat White Gold Ring

By Meghna Jewels

Located in Hoffman Estate, IL

This ring has been meticulously crafted from 14-karat gold. It is hand set with 30.88 carats blue topaz & 1.63 carats of sparkling diamonds. The ring is a size 7 and may be resize...

Category

21st Century and Contemporary Unknown Contemporary Engagement Rings

Materials

Diamond, Topaz, Blue Topaz, Gold, White Gold, 14k Gold

Blue Ceylon Sapphire Ring 30 Carats GIA Diamond Cocktail Design by Ella Gafter
Blue Ceylon Sapphire Ring 30 Carats GIA Diamond Cocktail Design by Ella Gafter

Blue Ceylon Sapphire Ring 30 Carats GIA Diamond Cocktail Design by Ella Gafter

By Ella Gafter

Located in New York, NY

The blue Ceylon sapphire and diamond ring features a magnificent oval faceted 30 carat blue Ceylon sapphire of intense and crystalline “blu Madonna” color. (In reference to the marve...

Category

21st Century and Contemporary Italian Artist Cocktail Rings

Materials

Blue Sapphire, Diamond, White Diamond, Sapphire, 18k Gold, White Gold

18 kt. Yellow Gold Adler Genève Set Necklace & Earrings With Emeralds & Diamonds
18 kt. Yellow Gold Adler Genève Set Necklace & Earrings With Emeralds & Diamonds

18 kt. Yellow Gold Adler Genève Set Necklace & Earrings With Emeralds & Diamonds

Located in Antwerp, BE

Magnificent 18 kt. Yellow Gold Adler Genève Set Necklace & Earrings With Emerald and Diamonds from Estate Sultan Of Oman Qaboos Bin Said. Completely Hand made by Adler Genève, one o...

Category

20th Century Swiss Artisan Drop Necklaces

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

5ct Emerald Forget Me Knot Ring in 18ct Yellow Gold bezel set
5ct Emerald Forget Me Knot Ring in 18ct Yellow Gold bezel set

5ct Emerald Forget Me Knot Ring in 18ct Yellow Gold bezel set

Located in Brisbane, AU

Glamorously bold and unabashedly seductive. This showstopper ring features a glorious bezel set emerald, embraced by powerful-golden ropes, converging to two knots on either side of ...

Category

2010s Australian Contemporary Engagement Rings

Materials

Emerald, Yellow Gold, 18k Gold

Sophia D. 1.08 Carat Diamond and Blue Sapphire Art Deco Ring Set In Platinum
Sophia D. 1.08 Carat Diamond and Blue Sapphire Art Deco Ring Set In Platinum

Sophia D. 1.08 Carat Diamond and Blue Sapphire Art Deco Ring Set In Platinum

By Sophia D

Located in New York, NY

This art deco inspired ring set in platinum features a 1.08 carat diamond accentuated with 1.50 carat blue sapphires and 0.22 carat surrounding diamonds. Sophia D by Joseph Dardasht...

Category

2010s Art Deco Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

GIA Certified 20 Carat Type 2A FLAWLESS Clarity D Color Diamond Ring
GIA Certified 20 Carat Type 2A FLAWLESS Clarity D Color Diamond Ring

GIA Certified 20 Carat Type 2A FLAWLESS Clarity D Color Diamond Ring

Located in Chicago, IL

GIA Certified 20 Carat Type 2A Diamond Ring, boasting FLAWLESS clarity and a pristine D color rating. This exceptional diamond stands as a testament to rare beauty, reflecting light...

Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Huge 38 Carat Cushion Cut Natural Amethyst Cocktail Ring in Platinum 23.8 Gm
Huge 38 Carat Cushion Cut Natural Amethyst Cocktail Ring in Platinum 23.8 Gm

Huge 38 Carat Cushion Cut Natural Amethyst Cocktail Ring in Platinum 23.8 Gm

Located in New York, NY

This vintage cocktail ring is a stunning piece of jewelry that features a huge 38 carat cushion-cut natural amethyst set in platinum. The amethyst measures 17 x 21 mm, giving the ri...

Category

2010s Cocktail Rings

Materials

Amethyst, Platinum

Vintage 33.20 Carat Aquamarine 3.59 Carat Diamond and Platinum Pendant
Vintage 33.20 Carat Aquamarine 3.59 Carat Diamond and Platinum Pendant

Vintage 33.20 Carat Aquamarine 3.59 Carat Diamond and Platinum Pendant

Located in Jesmond, Newcastle Upon Tyne

A stunning, fine and impressive vintage 3.59 carat diamond necklace with 33.20 carat aquamarine drop pendant crafted in platinum; part of our diverse vintage aquamarine jewelry colle...

Category

Vintage 1950s Unknown Pendant Necklaces

Materials

Aquamarine, Diamond, Platinum

GRS Cert. 14.51 Carat Colombian Emerald and Old Euro Diamond Halo Filigree Ring
GRS Cert. 14.51 Carat Colombian Emerald and Old Euro Diamond Halo Filigree Ring

GRS Cert. 14.51 Carat Colombian Emerald and Old Euro Diamond Halo Filigree Ring

Located in Miami, FL

GRS Certified Vintage 14.51 Carat Octagonal Cut Insignificant Oil Colombian Emerald & Old European Cut Diamond in Carved 14K Gold Retro Style Ring Shank. The emerald bears phenomen...

Category

Vintage 1930s Colombian Retro Cocktail Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Art Deco Design 18K Gold Choker with 48ct Zambian Emeralds and 5ct Diamonds
Art Deco Design 18K Gold Choker with 48ct Zambian Emeralds and 5ct Diamonds

Art Deco Design 18K Gold Choker with 48ct Zambian Emeralds and 5ct Diamonds

Located in New Delhi, Delhi

An extraordinary piece of Art Deco design for this magnificent choker/bracelet , a very piece of art, ideal for refined and glamour ladies . Choker/ bracelet come in 18K gold with 4...

Category

21st Century and Contemporary Art Deco Choker Necklaces

Materials

Diamond, Emerald, 18k Gold

Graff 18K Yellow Gold Diamond and Rubies Suite Necklace
Graff 18K Yellow Gold Diamond and Rubies Suite Necklace

Graff 18K Yellow Gold Diamond and Rubies Suite Necklace

By Graff

Located in New York, NY

Graff 18K yellow gold diamond and rubies suite necklace, a true embodiment of luxury and elegance. This beautiful jewelry set is meticulously crafted and showcases the perfect fusion...

Category

20th Century British Contemporary Choker Necklaces

Materials

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

Spectra Fine Jewelry C.Dunaigre Certified Colombian Emerald Diamond Necklace
Spectra Fine Jewelry C.Dunaigre Certified Colombian Emerald Diamond Necklace

Spectra Fine Jewelry C.Dunaigre Certified Colombian Emerald Diamond Necklace

By Spectra Fine Jewelry

Located in New York, NY

Indulge in unparalleled elegance with this exquisite necklace, featuring 18 graduated Sugarloaf Cabochon Colombian Emeralds, collectively weighing an impressive 141.04 carats. Certif...

Category

21st Century and Contemporary American Contemporary Choker Necklaces

Materials

Diamond, Emerald, 18k Gold

Get Updated with New Arrivals
Save "20 Ct Amethyst Ring", and we’ll notify you when there are new listings in this category.

20 Ct Amethyst Ring For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 20 ct amethyst ring for your needs in our varied inventory. Every item for sale was constructed with extraordinary care, often using Gold, 14k Gold and Yellow Gold. Our collection of these items for sale includes 27 vintage editions and 6 modern creations to choose from as well. Making the right choice when shopping for a 20 ct amethyst 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. There have been many well-made iterations of the classic 20 ct amethyst ring over the years, but those made by Five Star Jewelry, Georg Jensen and Michael Barin are often thought to be among the most beautiful. An oval cut version of this piece has appeal, but there are also emerald cut and mixed cut versions for sale. If you’re browsing our inventory for a 20 ct amethyst 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 20 Ct Amethyst Ring?

Prices for a 20 ct amethyst ring can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $143 and can go as high as $9,634, while this accessory, on average, fetches $1,112.

The Legacy of Amethyst in Jewelry Design

There are few gemstones in the world that are both affordable and worthy of a duchess’s attention. But then not many stones are as beautiful as amethyst. Indeed, vintage and antique amethyst jewelry has innumerable fans, and February’s birthstone has many unique attributes. For the romantics, there are several tales in Greek mythology that tell the story of Bacchus and Amethyste, a maiden that he pursues yet is rescued by Diane by turning her into a white stone. Bacchus, mourning his love, pours a glass of wine over the sculpture, dyeing her purple.

Amethyst has adorned many royal jewels. One of the most enviable jewelry collections of all time belonged to Wallis Simpson, the Duchess of Windsor. In 1947, the Duke gifted her with a Cartier amethyst and turquoise bib necklace. This special order piece was made with twisted 18-carat and 20-carat gold, platinum, brilliant- and baguette-cut diamonds, one heart-shaped faceted amethyst, 27 emerald-cut amethysts, one oval faceted amethyst, and turquoise cabochons. The Duchess was not the only Royal with a penchant for the purple gemstone. The tiara now owned by Queen Silvia of Sweden is set with amethysts that once belonged to the French Empress Josephine. A stunning 56-carat cushion-cut, square-shaped amethyst set in an 18-karat yellow gold necklace designed by Tiffany & Co. is now in the collection of the Smithsonian National Museum of Natural History.

The Smithsonian also has in its possession an even more rare example of fine amethyst: the 96-carat Morris Amethyst Brooch. The brooch features a deep, rich purple heart-shaped amethyst. The museum states that the piece was likely made during the Edwardian period (1901–15) “when platinum and diamonds were often used, and amethyst, a favorite stone of King Edward VII’s wife, Alexandra, was often included in jewelry of the era.”

Another amethyst necklace, with an even richer story, can be found in the Natural History Museum of London. Known as the Delhi Purple Sapphire (even though the stone is an amethyst), this stone was stolen from the Temple of Indra during the Indian Mutiny of 1857. Anyone in possession of this stone is bound to have terrible luck, including its owner Edward Heron-Allen, who gifted the gemstone to the museum thinking that this would save him but ended up transferring the bad luck to the museum curators overseeing the stone.

Find a wide range of vintage and antique amethyst necklaces, bracelets and other fine jewelry on 1stDibs.

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.