Results for “Opal Rocks”

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43.31 Ct Natural Dendrite Opal Pear Cab: weight - 43.31 Ct / Size - 41.00 x 27.00 x 6.00 mm / Shape - Excellent Pear Cab / Origin - Brazil / Treatment - None

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43.31 Ct Natural Dendrite Opal Pear Cab

$30

Gems AuctionBangkok, TH

15.73 Ct Natural Dendrite Opal Round Beads: weight - 15.73 Ct / Dimensions - 7.60 - 7.90 mm / 12 Pc's / Shape & Cut - Excellent Round Beads / Origin - Brazil / Comments - None

May 22, 2026

15.73 Ct Natural Dendrite Opal Round Beads

Est. $75-$150

$1

Gems AuctionBangkok, TH

3.87 Carats Multi-Color Koroit Boulder Opal - Natural Australian Stone, LZ43: This stunning 3.87 carat Koroit boulder opal, measuring 14.8mm x 10.4mm x 2.7mm, is a breathtaking canvas of natural color and pattern. Polished into a smooth oval cabochon, its face is dominated by r

20 hrs Left

3.87 Carats Multi-Color Koroit Boulder Opal - Natural Australian Stone, LZ43

Est. $70-$140

$5

ThousandPlanetSathorn, Bangkok

17.70 Carats Welo Opal Cabochon Parcel - Natural Ethiopian Stones, 49XA: 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

20 hrs Left

17.70 Carats Welo Opal Cabochon Parcel - Natural Ethiopian Stones, 49XA

Est. $50-$100

$5

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

20 hrs Left

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

Est. $50-$100

$5

ThousandPlanetSathorn, Bangkok

16.18 Carats Welo Opal Cabochon Parcel - Natural Ethiopian Stones, 54XA: This luminous collection of Welo opals showcases a rich spectrum of translucent body tones, from milky white and soft cream to warm honey and golden amber, each adorned with vivid, shifting color play

20 hrs Left

16.18 Carats Welo Opal Cabochon Parcel - Natural Ethiopian Stones, 54XA

Est. $50-$100

$5

ThousandPlanetSathorn, Bangkok

3.08 Carats Boulder Opal Cabochon - Natural Matrix & Play-of-Color Specimen, 54XM: This 3.08ct boulder opal cabochon, measuring 10x9mm, is a striking example of Australia's iconic gemstone, showcasing the unique beauty of nature's artistry. The triangular cabochon is polished to a s

20 hrs Left

3.08 Carats Boulder Opal Cabochon - Natural Matrix & Play-of-Color Specimen, 54XM

Est. $60-$120

$5

ThousandPlanetSathorn, Bangkok

17.81 Carats Deep Blue and Brown Matrix Boulder Opal Cabochon - Natural Australian Stone, 41XM: This substantial boulder opal cabochon features a dramatic, layered composition of deep blue opal interwoven with rich brown and maroon ironstone matrix, accented by milky white opal veins that flow a

20 hrs Left

17.81 Carats Deep Blue and Brown Matrix Boulder Opal Cabochon - Natural Australian Stone, 41XM

Est. $80-$160

$5

ThousandPlanetSathorn, Bangkok

2.33 Carats Neon Blue-Green Matrix Boulder Opal - Natural Australian Stone, LZ48: This captivating 2.33 carat matrix boulder opal, measuring 11.4mm x 7.8mm x 3.1mm, is a striking example of nature's dramatic artistry. Polished into a smooth oval cabochon, its surface is dominated b

20 hrs Left

2.33 Carats Neon Blue-Green Matrix Boulder Opal - Natural Australian Stone, LZ48

Est. $90-$180

$5

ThousandPlanetSathorn, Bangkok

5.45 Carats Boulder Opal Cabochon - Natural Matrix Vein Specimen, 61XM: This 5.45ct boulder opal cabochon, measuring 18x9mm, is a striking example of Australia's iconic gemstone, showcasing the unique beauty of nature's artistry. The teardrop-shaped cabochon is polished t

20 hrs Left

5.45 Carats Boulder Opal Cabochon - Natural Matrix Vein Specimen, 61XM

Est. $60-$120

$5

ThousandPlanetSathorn, Bangkok

56.36 Carats Winton Boulder Opal Rough Specimen - Natural Queensland Origin, LZ94: This impressive Winton boulder opal rough is a stunning showcase of Australian boulder opal's natural beauty. The polished face reveals a broad, continuous sheet of opal glowing with shifting hues of

20 hrs Left

56.36 Carats Winton Boulder Opal Rough Specimen - Natural Queensland Origin, LZ94

Est. $120-$240

$5

ThousandPlanetSathorn, Bangkok

67.01 Carats Winton Boulder Opal Rough Specimen - Natural Queensland Origin, LZ98: This impressive Winton boulder opal rough is a stunning showcase of Australian boulder opal's dramatic natural beauty. The polished face reveals a rich tapestry of opal and ironstone, where vivid patc

20 hrs Left

67.01 Carats Winton Boulder Opal Rough Specimen - Natural Queensland Origin, LZ98

Est. $140-$280

$5

ThousandPlanetSathorn, Bangkok

42.07 Carats Blue-Green Winton Boulder Opal Rough - Natural Australian Stone, LZ99: This striking rough boulder opal from Winton displays a dramatic landscape of color and texture. Set within its natural ironstone matrix, the opal showcases a spectrum of vivid blue hues, from soft sk

20 hrs Left

42.07 Carats Blue-Green Winton Boulder Opal Rough - Natural Australian Stone, LZ99

Est. $110-$220

$5

ThousandPlanetSathorn, Bangkok

3.66 Carats Cream-Blue Boulder Opal - Natural Australian Stone, 48XM: This elegant boulder opal captivates with a soft, creamy base that transitions into cool, translucent blue layers, with subtle flashes of iridescent green and violet shimmering beneath its smooth, tri

20 hrs Left

3.66 Carats Cream-Blue Boulder Opal - Natural Australian Stone, 48XM

Est. $50-$100

$5

ThousandPlanetSathorn, Bangkok

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

20 hrs Left

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

Est. $50-$100

$5

ThousandPlanetSathorn, Bangkok

19.83 Carats Winton Boulder Opal Rough Specimen - Natural Queensland Origin, LZ93: This striking Winton boulder opal rough showcases the dramatic beauty of Australian boulder opal. The polished face reveals a vivid sheet of opal glowing with intense, saturated hues of electric viole

20 hrs Left

19.83 Carats Winton Boulder Opal Rough Specimen - Natural Queensland Origin, LZ93

Est. $80-$160

$5

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

20 hrs Left

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

Est. $60-$120

$5

ThousandPlanetSathorn, Bangkok

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