12 Carat Amethyst
21st Century and Contemporary Contemporary Stud Earrings
Amethyst, Gold, Gold Plate, White Gold, Silver, Silver Plate, Sterling S...
21st Century and Contemporary Contemporary Stud Earrings
Amethyst, Gold, Gold Plate, White Gold, Silver, Silver Plate, Sterling S...
21st Century and Contemporary Contemporary Stud Earrings
Amethyst, Gold, Gold Plate, White Gold, Silver, Silver Plate, Sterling S...
21st Century and Contemporary Contemporary Stud Earrings
Amethyst, Gold, Gold Plate, White Gold, Silver, Silver Plate, Sterling S...
21st Century and Contemporary Contemporary Stud Earrings
Amethyst, Gold, Gold Plate, White Gold, Silver, Silver Plate, Sterling S...
21st Century and Contemporary Contemporary Stud Earrings
Amethyst, Gold, Gold Plate, White Gold, Silver, Silver Plate, Sterling S...
21st Century and Contemporary Contemporary Stud Earrings
Amethyst, Gold, Gold Plate, White Gold, Silver, Silver Plate, Sterling S...
21st Century and Contemporary Contemporary Stud Earrings
Amethyst, Gold, Gold Plate, White Gold, Silver, Silver Plate, Sterling S...
2010s American Contemporary Drop Earrings
Amethyst, Diamond, Freshwater Pearl, Pink Sapphire, White Gold
2010s Contemporary Dangle Earrings
Diamond, Amethyst, 18k Gold, Yellow Gold
21st Century and Contemporary Thai Contemporary Necklace Enhancers
Amethyst, Diamond, 18k Gold, Rose Gold
2010s American Contemporary Pendant Necklaces
Diamond, Amethyst, 18k Gold, Yellow Gold
21st Century and Contemporary Thai Belle Époque Cocktail Rings
Amethyst, Quartz, Topaz, Silver
Early 20th Century English Cluster Rings
Amethyst, Diamond, 18k Gold, White Gold, Platinum
21st Century and Contemporary Thai Art Nouveau Brooches
Amethyst, Ruby, Sapphire, Blue Sapphire, Tsavorite, 18k Gold, Gold Plate...
21st Century and Contemporary Thai Baroque Cocktail Rings
Amethyst, Ruby, Topaz, 18k Gold, Gold Plate, Silver
Early 20th Century Unknown Art Deco Cocktail Rings
Amethyst, Gold, 10k Gold, 14k Gold, Yellow Gold
Vintage 1960s Swiss Modernist Chandelier Earrings
Amethyst, Diamond, 18k Gold, Yellow Gold
21st Century and Contemporary American Contemporary Drop Earrings
Amethyst, Freshwater Pearl, Diamond, 18k Gold
21st Century and Contemporary Italian Solitaire Rings
Amethyst, Silver
2010s Artisan Cocktail Rings
Amethyst, Diamond, 18k Gold
Vintage 1950s More Rings
Amethyst, Diamond, Yellow Gold, Platinum
21st Century and Contemporary Armenian Modern Fashion Rings
Amethyst, Gold, 14k Gold, 18k Gold, Rose Gold, White Gold, Yellow Gold
Vintage 1920s More Jewelry
Amethyst, 14k Gold
21st Century and Contemporary French Contemporary Clip-on Earrings
Amethyst, Quartz, Topaz, 18k Gold
21st Century and Contemporary French Contemporary Modern Bracelets
Amethyst, Quartz, Topaz, 18k Gold
21st Century and Contemporary French Contemporary Modern Bracelets
Amethyst, Quartz, Topaz, 18k Gold
Late 20th Century More Rings
Vintage 1960s Modernist Brooches
Amethyst, Jade, Ruby, Gold, 14k Gold
Antique Early 1800s British Georgian More Rings
Amethyst, Emerald, Pearl, 15k Gold
Vintage 1950s Unknown Retro Cocktail Rings
Amethyst, Diamond, White Diamond, 14k Gold
Antique 1870s More Bracelets
Amethyst, Yellow Gold
21st Century and Contemporary French Contemporary Cocktail Rings
Amethyst, Diamond, Gold, 18k Gold, White Gold
Vintage 1970s Cluster Rings
Amethyst, Diamond, 18k Gold, Yellow Gold
Vintage 1950s American Retro Fashion Rings
Amethyst, White Diamond, 14k Gold, Yellow Gold
Vintage 1920s Swiss Art Deco Cocktail Rings
Amethyst, Diamond, 18k Gold, White Gold
1990s Contemporary Link Bracelets
Amethyst, Blue Topaz, 14k Gold, Yellow Gold
21st Century and Contemporary Swiss Dangle Earrings
Amethyst, Diamond, 18k Gold
Vintage 1970s Unknown Contemporary Modern Bracelets
Amethyst, Diamond, 18k Gold, White Gold
Vintage 1950s American Retro Fashion Rings
Amethyst, Diamond, White Gold
Early 20th Century Solitaire Rings
Amethyst, Diamond, Onyx, 18k Gold, White Gold
21st Century and Contemporary American Cocktail Rings
Amethyst, Diamond, 18k Gold, White Gold
21st Century and Contemporary Modern Dangle Earrings
Amethyst, Diamond, Tourmaline, Gold, 18k Gold, Rose Gold
Vintage 1980s American Clip-on Earrings
Amethyst, Peridot, 14k Gold, Yellow Gold
Early 2000s Cocktail Rings
Amethyst, Rose Gold
21st Century and Contemporary Italian Art Deco Choker Necklaces
Sapphire, Emerald, Amethyst, Diamond, Citrine, Yellow Gold, 18k Gold
21st Century and Contemporary Indian Artisan Dangle Earrings
Amethyst, Aquamarine, Zircon, Sterling Silver
21st Century and Contemporary Contemporary Cocktail Rings
Amethyst, Peridot, Silver, Sterling Silver
21st Century and Contemporary Contemporary Cocktail Rings
Amethyst, Peridot, Silver, Sterling Silver
21st Century and Contemporary Contemporary Cocktail Rings
Amethyst, Peridot, Silver, Sterling Silver
21st Century and Contemporary Contemporary Cocktail Rings
Amethyst, Peridot, Silver, Sterling Silver
21st Century and Contemporary American Cocktail Rings
Amethyst, Sterling Silver
2010s Tennis Bracelets
Amethyst, 14k Gold, Yellow Gold
21st Century and Contemporary American Stud Earrings
Amethyst, Quartz, Sterling Silver
21st Century and Contemporary American Artisan Cocktail Rings
Amethyst, Sterling Silver
Late 20th Century Indian Modern Pendant Necklaces
Amethyst, 14k Gold, Yellow Gold
21st Century and Contemporary Thai Baroque Cocktail Rings
Amethyst, Citrine, Peridot, Ruby, Topaz, 18k Gold, Gold Plate, Silver
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12 Carat Amethyst For Sale on 1stDibs
How Much is a 12 Carat Amethyst?
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.
- How big is a 12 carat diamond?1 Answer1stDibs ExpertFebruary 22, 2021The size of a 12 carat diamond is dependent on diamond cut. A 12 carat round diamond is roughly 15 mm in size.