SaveBuy NowOval Shape Mandarin Cut Loose Gemstone From Africa ~ 1.09 CTChairish Auctions4.5(10.5k)$250
SaveBuy Now16 Carat Swiss Blue Topaz Loose Gemstone Asscher Cut November BirthstoneChairish Auctions4.5(10.5k)$210
SaveJun 05, 2026Medieval Silver Ring with Cornucopia GemstoneTimeLine Auctions Ltd.4.6(200)Est. £40-£60£5
SaveBuy Now28.30 CARATS PERFECT FLOWER CUT AMETHYST GEMSTONE - 20X17X13 mmFantasy Jewelry3.8(145)$150
Save3 days LeftLabradorite Pendent, Blue sterling silver gemstoneFantasy Jewelry3.8(145)Est. $200-$300$25
Save7 days LeftRoman Carnelian Gemstone with Bearded MaskTimeLine Auctions Ltd.4.6(200)Est. £100-£140£5
SaveStarts May 28Purple Amethyst Gemstone, Natural Amethyst Ring StoneChairish Auctions4.5(10.5k)Est. $200-$250$85
![Roman Agate Gemstone with Female Bust: 2nd-3rd century A.D. With intaglio profile female bust; supplied with a museum-quality impression. 0.61 grams, 11.38 mm (3/8 in.). [No Reserve] From the private collection of a European gentleman (194](https://p1.liveauctioneers.com/1191/415803/231330345_1_x.jpg?height=280&quality=70&sharpen=true&version=1777474167&width=280)
![Roman Carnelian Gemstone with Insect: 2nd-3rd century A.D. With intaglio insect; supplied with a museum-quality impression. 0.90 grams, 13.22 mm (1/2 in.). [No Reserve] From the private collection of a European gentleman (1942-2024), form](https://p1.liveauctioneers.com/1191/415804/231331518_1_x.jpg?height=280&quality=70&sharpen=true&version=1777474526&width=280)
![Roman Banded Agate Gemstone with Eagle: 2nd-3rd century A.D. With intaglio eagle standing with head turned, wreath in its beak; supplied with a museum-quality impression. 0.76 grams, 10.76 mm (3/8 in.). [No Reserve] From the private collect](https://p1.liveauctioneers.com/1191/415803/231330604_1_x.jpg?height=280&quality=70&sharpen=true&version=1777474167&width=280)
![Roman Carnelian Gemstone with Bearded Mask: 2nd-3rd century A.D. With intaglio bearded facing mask forming the body of an insect; supplied with a museum-quality impression. 0.36 grams, 13.48 mm (1/2 in.). [No Reserve] From the private collectio](https://p1.liveauctioneers.com/1191/415803/231330812_1_x.jpg?height=280&quality=70&sharpen=true&version=1777474167&width=280)
![Roman Agate Gemstone with Bird: 2nd-3rd century A.D. With intaglio bird standing on a baseline; supplied with a museum-quality impression. 0.78 grams, 11.29 mm (3/8 in.). [No Reserve] From the private collection of a European gentle](https://p1.liveauctioneers.com/1191/415803/231330418_1_x.jpg?height=280&quality=70&sharpen=true&version=1777474167&width=280)
![Gemstone Collection: 19th-20th century A.D. Comprising: profile male and female busts in carnelian and other stones; each supplied with a museum-quality impression. 4.66 grams total, 14-18 mm (1/2 - 3/4 in.). [4] Private](https://p1.liveauctioneers.com/1191/415806/231334909_1_x.jpg?height=280&quality=70&sharpen=true&version=1777480633&width=280)
