Antique & Vintage Gems for Sale in Online Auctions

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2.72 Ct Natural Blue Fire Opal Oval Cut: Weight - 2.72 Ct / Size - 11.00 x 9.00 x 7.70 mm / Shape - Oval Cut / Color - Blue / Clarity - Translucent / Origin - Ethiopia / Treatment - Heated

2026

2.72 Ct Natural Blue Fire Opal Oval Cut

Gems AuctionBangkok, TH

82.71 Ct Natural Afghanite Pear Cab: Weight - 82.71 Ct / Dimensions - 41.00 x 40.00 x 5.60 mm / Shape - Pear Cab / Transparency - Opaque / Origin - Pakistan / Treatment - None

2026

82.71 Ct Natural Afghanite Pear Cab

Gems AuctionBangkok, TH

20.59 Ct Natural Ruby Zoisite Round Cut Beads: weight - 20.59 Ct / Size - 2.90 - 3.00 mm / 117 Pc's / Shape - Excellent Round Cut Beads / Origin - Brazil / Treatment - None

2026

20.59 Ct Natural Ruby Zoisite Round Cut Beads

Gems AuctionBangkok, TH

31.76 Ct Natural Maligano Jasper Quartz OVal Cab: weight - 31.76 Ct / Dimensions - 31.00 x 21.90 x 5.70 mm / Shape - Excellent Oval Cab / Origin - Brazil / Treatment - None

2026

31.76 Ct Natural Maligano Jasper Quartz OVal Cab

Gems AuctionBangkok, TH

30.22 Ct Natural Tiger Eye Pear Cab: Weight - 30.22 Ct / Dimensions - 44.00 x 19.80 x 4.30 mm / Top Class Quality / Pear Cab / Origin - Burmese / Comments - None

2026

30.22 Ct Natural Tiger Eye Pear Cab

Gems AuctionBangkok, TH

2.36 Ct Natural Green Peridot Oval Cut: Weight - 2.36 Ct / Dimensions - 9.00 x 7.50 x 5.00 mm / Shape - Oval Cut / Color - Green / Clarity - VVS / Origin - Pakistan / Treatment - None

2026

2.36 Ct Natural Green Peridot Oval Cut

Gems AuctionBangkok, TH

8.93 Ct Natural Candy Turquoise Cushion Cab: Weight - 8.93 Ct / Dimensions - 18.00 x 10.40 x 4.50 mm / Good Color / Cushion Cab - Ready for Jewellery Setting / Origin - Egypt / Treatment - None

2026

8.93 Ct Natural Candy Turquoise Cushion Cab

Gems AuctionBangkok, TH

11.25 Ct Natural Multicolor Turquoise Cushion Cab: Weight - 11.25 Ct / Dimensions - 21.00 x 10.70 x 4.50 mm / Shape - Cushion Cab / Color - Multicolor / Transparency - Opaque / Origin - Egypt / Treatment - None

2026

11.25 Ct Natural Multicolor Turquoise Cushion Cab

Gems AuctionBangkok, TH

3.35 Ct Natural Yellow Beryl Cushion Cut: Weight - 3.35 Ct / Size -10.00 x 9.50 x 6.00 mm / Top Class Quality / Cushion Cut / Origin - Brazil / Treatment - None

2026

3.35 Ct Natural Yellow Beryl Cushion Cut

Gems AuctionBangkok, TH

32.43 Ct Natural Chrome Chalcedony Oval Cab: Weight - 32.43 Ct / Size - 36.00 x 19.20 x 6.40 mm / Shape - Excellent Oval Cab / Clarity - Opaque / Origin - Brazil / Treatment - None

2026

32.43 Ct Natural Chrome Chalcedony Oval Cab

Gems AuctionBangkok, TH

156.91 Carats Multicolor Moonstone Selection - Natural Mixed-Origin Stones, 15-22mm, 56XH: This substantial parcel of natural moonstone showcases a dreamy palette of whites, silvers, smoky greys, and peachy taupes, each polished into a smooth cabochon with soft internal glow. The stones exh

2026

156.91 Carats Multicolor Moonstone Selection - Natural Mixed-Origin Stones, 15-22mm, 56XH

ThousandPlanetSathorn, Bangkok

109.08 Carats Midnight Blue Goldstone Cabochon Parcel 1.7-2cm, 74ZJ: This luminous parcel of midnight blue goldstone cabochons shimmers with a celestial sparkle, evoking the quiet magic of a starry night sky. Each oval cabochon, sized between 1.7 and 2 centimeters, glo

2026

109.08 Carats Midnight Blue Goldstone Cabochon Parcel 1.7-2cm, 74ZJ

ThousandPlanetSathorn, Bangkok

170.38 Carats Natural Garnet Rough Parcel, 38XE: This generous parcel of natural garnet rough showcases a rich palette of warm hues, ranging from deep reddish-brown to vibrant orange and honey tones. The stones are in their natural crystalline form,

2026

170.38 Carats Natural Garnet Rough Parcel, 38XE

ThousandPlanetSathorn, Bangkok

Natural Australian Lightning Ridge Opal Rough, 52g, 89WS: This collection of raw opal rough hails from Australia's legendary Lightning Ridge, showcasing the region's iconic play-of-color potential. The stones exhibit a range of natural hues, from milky white

2026

Natural Australian Lightning Ridge Opal Rough, 52g, 89WS

ThousandPlanetSathorn, Bangkok

35.82ct Natural Mauritania Ruby Rough (Unheated), 60XA: This unheated Mauritania ruby rough is a captivating natural crystal specimen, featuring vivid magenta-purple ruby formations embedded in a contrasting greyish matrix. The stone's rugged, unpolished s

2026

35.82ct Natural Mauritania Ruby Rough (Unheated), 60XA

ThousandPlanetSathorn, Bangkok

2.72 Carats Play-of-Color Welo Opal - Natural Ethiopian Gem 11x8mm, 30XC: This captivating Welo opal gleams with a luminous cascade of multi neon color that ripple across the stone's surface with every movement. The play-of-color is vivid and well-distributed, presenting a

2026

2.72 Carats Play-of-Color Welo Opal - Natural Ethiopian Gem 11x8mm, 30XC

ThousandPlanetSathorn, Bangkok

20.74 Carats Welo Opal Cabochon Parcel - Natural Ethiopian Stones, 47XA: This vibrant collection of Welo opals features a stunning variety of translucent body tones, from milky white and soft cream to warm honey and golden-orange, each adorned with vivid, shifting color pl

2026

20.74 Carats Welo Opal Cabochon Parcel - Natural Ethiopian Stones, 47XA

ThousandPlanetSathorn, Bangkok

20.32 Carats Welo Opal Cabochon Parcel - Natural Ethiopian Stones, 53XA: This luminous collection of Welo opals showcases a rich spectrum of warm and cool translucent body tones, from milky white and soft cream to honey and golden amber, each adorned with vivid, shifting c

2026

20.32 Carats Welo Opal Cabochon Parcel - Natural Ethiopian Stones, 53XA

ThousandPlanetSathorn, Bangkok

1.08 Carats Natural Tanzanite - Oval Faceted Loose Gemstone, 92WE: Natural oval-faceted tanzanite gemstone, mined from the iconic Merelani Hills of Tanzania. This specimen exhibits a stunning, vivid blue-violet hue with subtle pleochroism, shifting between cool blue

2026

1.08 Carats Natural Tanzanite - Oval Faceted Loose Gemstone, 92WE

ThousandPlanetSathorn, Bangkok

129.35 Carats Earthy Banded Jasper Cabochon Parcel - Natural Brazilian Stones 1.2-2.7cm, 70ZJ: This curated parcel of banded jasper cabochons showcases the earthy, organic beauty of this ancient stone, with swirling bands of warm beige, terracotta, and deep charcoal that evoke desert landscapes

2026

129.35 Carats Earthy Banded Jasper Cabochon Parcel - Natural Brazilian Stones 1.2-2.7cm, 70ZJ

ThousandPlanetSathorn, Bangkok

191.96 Carats Natural Garnet Rough Parcel, 37XE: This generous parcel of natural garnet rough showcases a rich, warm spectrum of hues, from deep reddish-brown and burgundy to vibrant amber and honey-orange tones. The stones are in their raw, crystal

2026

191.96 Carats Natural Garnet Rough Parcel, 37XE

ThousandPlanetSathorn, Bangkok

Lot of 9 Grape Agate Mineral Specimens, 38AC: A group of nine natural grape agate specimens, each displaying characteristic botryoidal chalcedony formations in varying shades of purple, lavender, and greenish-blue. The surfaces are composed of de

2026

Lot of 9 Grape Agate Mineral Specimens, 38AC

ThousandPlanetSathorn, Bangkok

45.25ct Natural Mauritania Ruby Rough (Unheated), 72XA: This unheated Mauritania ruby rough is a captivating natural crystal specimen, featuring vivid magenta-purple ruby formations embedded in a contrasting greyish matrix. The stone's rugged, unpolished s

2026

45.25ct Natural Mauritania Ruby Rough (Unheated), 72XA

ThousandPlanetSathorn, Bangkok

20.46ct Natural Mauritania Ruby Rough (Unheated), 91AL: This unheated Mauritania ruby rough is a striking natural crystal specimen, featuring a rich, saturated magenta hue with subtle purple undertones that deepen toward the core. The rough's rugged, natur

2026

20.46ct Natural Mauritania Ruby Rough (Unheated), 91AL

ThousandPlanetSathorn, Bangkok

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