Opal

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10.84 Carats Iridescent Multicolor Boulder Opal - Natural Australian Stone, 52XM: This substantial boulder opal dazzles with a dynamic play of color, shifting through ethereal blues, violets, and subtle flashes of iridescent green and pink as light moves across its elongated, taper

2026

10.84 Carats Iridescent Multicolor Boulder Opal - Natural Australian Stone, 52XM

ThousandPlanetSathorn, Bangkok

Ethiopian Welo Opal Rough - Natural Unpolished Gemstone Lot, 15WS: A collection of natural Ethiopian Welo opal rough pieces, ranging in size from 1-3 cm and totaling 49.42 grams. The opals display characteristic milky to translucent base tones with vibrant, shifting

2026

Ethiopian Welo Opal Rough - Natural Unpolished Gemstone Lot, 15WS

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

4.61 Carats Welo Opal Oval Cabochon - Natural Ethiopian Stone, 34XB: This stunning oval cabochon of Welo opal enchants with a luminous, shifting play of color, dominated by vivid lime green flashes complemented by soft hints of peach and golden yellow across its milky,

2026

4.61 Carats Welo Opal Oval Cabochon - Natural Ethiopian Stone, 34XB

ThousandPlanetSathorn, Bangkok

4.15 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 13.9x9.9mm, 17XM: This exceptional 4.15-carat Koroit boulder opal cabochon is a natural masterpiece, showcasing a striking, organic formation of milky white and peach-toned opal, infused with a vivid spectrum of play-o

2026

4.15 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 13.9x9.9mm, 17XM

ThousandPlanetSathorn, Bangkok

2.55 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 11.8x6.8mm, 9XM: This striking 2.55-carat Koroit boulder opal cabochon is a natural geological masterpiece, featuring vivid veins of iridescent play-of-color that snake through a rich, dark ironstone matrix. The elong

2026

2.55 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 11.8x6.8mm, 9XM

ThousandPlanetSathorn, Bangkok

6.27 Carats Welo Opal Oval Cabochon Parcel - Natural Ethiopian Stones, 52WD: This luminous parcel of five Welo opals showcases a warm, honey-toned base with vivid, shifting flashes of lime green, golden yellow, and subtle orange across each stone. The total carat weight of the

2026

6.27 Carats Welo Opal Oval Cabochon Parcel - Natural Ethiopian Stones, 52WD

ThousandPlanetSathorn, Bangkok

59.14 Carats Winton Boulder Opal Rough Specimen - Natural Queensland Origin, LZ87: This impressive Winton boulder opal rough is a dramatic showcase of Australian opal's natural beauty. The rugged ironstone matrix forms a textured, earthy backdrop, interspersed with large, vibrant po

2026

59.14 Carats Winton Boulder Opal Rough Specimen - Natural Queensland Origin, LZ87

ThousandPlanetSathorn, Bangkok

4.84 Carats Natural Ethiopian Welo Opal - Oval Cabochon Loose Gemstone Lot, 61WE: Natural oval cabochon Welo opal lot, sourced from the premium Welo deposit in Ethiopia. This curated collection showcases exceptional opals with vivid, full-spectrum play-of-color-flashing fiery reds,

2026

4.84 Carats Natural Ethiopian Welo Opal - Oval Cabochon Loose Gemstone Lot, 61WE

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

23.95 Carats Winton Boulder Opal Rough Slab - Natural Australian Stone, 36XP: This striking Winton boulder opal rough slab showcases a luminous band of ethereal sky-blue and pale aqua play-of-color, nestled within its natural ironstone host rock. Measuring precisely at 27.6 x 1

2026

23.95 Carats Winton Boulder Opal Rough Slab - Natural Australian Stone, 36XP

ThousandPlanetSathorn, Bangkok

28.26 Carats Multicolor Iridescent Winton Opal Rough - Natural Australian Specimen 30x12mm, 82XM: This exceptional rough opal from Winton, Australia, captivates with a vivid play of color, where intense flashes of fiery orange, golden yellow, vibrant green, and deep blue swirl through a milky, tra

2026

28.26 Carats Multicolor Iridescent Winton Opal Rough - Natural Australian Specimen 30x12mm, 82XM

ThousandPlanetSathorn, Bangkok

8.21 Carats Multicolor Welo Opal Oval Cabochon Parcel - Natural Ethiopian Stones, 55XC: This luminous parcel of Ethiopian Welo opals presents a breathtaking display of shifting iridescence, showcasing vivid greens, electric blues, fiery oranges, and soft pinks across each smooth, polishe

2026

8.21 Carats Multicolor Welo Opal Oval Cabochon Parcel - Natural Ethiopian Stones, 55XC

ThousandPlanetSathorn, Bangkok

2.15 Carats Boulder Opal Cabochon - Soft Pastel Play-of-Color Specimen, 60XM: This 2.15ct boulder opal cabochon, measuring 12x7mm, is a delicate example of Australia's iconic gemstone, showcasing the ethereal beauty of nature's artistry. The freeform triangular cabochon is poli

2026

2.15 Carats Boulder Opal Cabochon - Soft Pastel Play-of-Color Specimen, 60XM

ThousandPlanetSathorn, Bangkok

14K Gold Opal Necklace 1.8 Grams: This necklace features an oval cabochon opal pendant bezel-set in 14 karat yellow gold. The reverse of the pendant is stamped with the purity mark 14K585 and a maker's mark consisting of a stylized ov

2026

14K Gold Opal Necklace 1.8 Grams

Kellie's Estate SalesOkemos, MI

*7.51Ct Welo Opal Polished - Ethiopian Opal , 886E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 7.51Ct Dimension: 19.8x14.8x5 mm Treatment: Natural Untreated Type: Cabocho

2026

*7.51Ct Welo Opal Polished - Ethiopian Opal , 886E

ThousandPlanetBangkok, TH

*1.92Ct Welo Black Opal Polished - Ethiopian Opal , 840E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Black Opal Origin: Ethiopia Carat Weight: 1.92Ct Dimension: 11x9.1x4 mm Treatment: Smoked Type: Cabochon, Polis

2026

*1.92Ct Welo Black Opal Polished - Ethiopian Opal , 840E

ThousandPlanetBangkok, TH

1.77Ct Welo Black Opal Polished - Ethiopian Opal , 415E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Black Opal Origin: Ethiopia Carat Weight: 1.77Ct Dimension: 11.9x7.5x4.7 mm Treatment: Smoked Type: Faceted, Po

2026

1.77Ct Welo Black Opal Polished - Ethiopian Opal , 415E

ThousandPlanetBangkok, TH

*3.31Ct Welo Black Opal - Ethiopian Opal - Faceted Polished , 538E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Black Opal Origin: Ethiopia Carat Weight: 3.31Ct Dimension: 16.4x9.8x5.2 mm Treatment: Smoked Type: Faceted, Po

2026

*3.31Ct Welo Black Opal - Ethiopian Opal - Faceted Polished , 538E

ThousandPlanetBangkok, TH

*7.56Ct Smoked Faceted Welo Opal Polished - Ethiopian Opal , 295C: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 7.56Ct Dimension: 17.6x12.1x8 mm Treatment: Smoked Type: Faceted, Polished<

2026

*7.56Ct Smoked Faceted Welo Opal Polished - Ethiopian Opal , 295C

ThousandPlanetBangkok, TH

*4.63Ct Smoked Faceted Welo Opal Polished - Ethiopian Opal , 293C: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 4.63Ct Dimension: 14.8x11.9x6.9 mm Treatment: Smoked Type: Faceted, Polishe

2026

*4.63Ct Smoked Faceted Welo Opal Polished - Ethiopian Opal , 293C

ThousandPlanetBangkok, TH

*17.34Ct Calibrated 7x5mm Faceted Welo Opal Set - Ethiopian Opal , 152E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 17.34Ct Treatment: Natural Untreated Type: Faceted, Polished

2026

*17.34Ct Calibrated 7x5mm Faceted Welo Opal Set - Ethiopian Opal , 152E

ThousandPlanetBangkok, TH

3.16g Natural Opal Stone Sterling Silver 925 Ring (Adjustable) , 114E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Opal Ring (Silver 925) Origin: Ethiopia Stone Dimension: 11x8mm Treatment: Natural Untreated Type: Faceted, Polished

2026

3.16g Natural Opal Stone Sterling Silver 925 Ring (Adjustable) , 114E

ThousandPlanetBangkok, TH

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Opal Auctions

Natural Multi Color Play Of Colour Opal Gemstones 1.05 Ct. Oval Cabochon Shape 13 x 9.5 Mm.

Natural Paraiba Color Apatite Gemstones 58.85 Ct. Briolette With Drilled Beads Length 10 Inch

Natural Green Demantoid Garnet Gemstones 1.35 Ct. Oval Shape 6.42 x 5.70 Mm.

Natural Loose Gemstones Diamond Opal Special

Treasure of Gems & Jewelry

Starts on:

Lake Charles, LA, US

TPZ213 14.05 carats AAA Quality Laser cut Swiss Blue Topaz 18?11?8 mm

0.80 Carats Rubelite Tourmaline for Ring - 6X5X4 mm

TPZ225 9.55 carats AAA Quality Laser cut Citrine Quartz 15?12?8 mm

Natural Loose Gemstones Starting at $50

Fantasy Jewelry

Starts on:

Muscat, Muscat, AE

11 hrs Left

Weller Sicard 1902-07 Art Nouveau Pottery Iridescent Luster Floral Decorated 25" Floor Vase

Louis Marx & Co. 1930s Tin Lithograph "Roadside Rest Service Station" Toy Set

Freiwald Studio Art Pottery Hand Made Figural Bat Taking Flight On Green Stump Ceramic Sculpture

Decorative Arts And Fine Objects Auction

Crafted Auctions

Starts on:

Germantown Hills, IL, US

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