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Results for “Boulder Opal Ring”

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14.58Ct Koroit Boulder Opal Pair - Australian Opal , 24E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 14.58Ct Dimension: 23.9x11.3x3.1 mm Treatment: Natural Untreated Type: Cabochon,

20 hrs Left

14.58Ct Koroit Boulder Opal Pair - Australian Opal , 24E

Ksmith Heritage Auctioneers

Est. $390-$780

3.72Ct Boulder Opal - Australian Opal , 41E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 3.72Ct Dimension: 12.9x10.2x2.7 mm Treatment: Natural Untreated Type: Cabochon, P

20 hrs Left

3.72Ct Boulder Opal - Australian Opal , 41E

Ksmith Heritage Auctioneers

Est. $110-$220

6.75Ct Koroit Matrix Boulder Opal Polished - Australian Opal - Oval Cabochon , 125E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 6.75Ct Dimension: 14.4 x 12.4 x 3.9 mm Treatment: Natural Untreated Shape: Oval

2026

6.75Ct Koroit Matrix Boulder Opal Polished - Australian Opal - Oval Cabochon , 125E

Ksmith Heritage Auctioneers

5.84 Carats Turquoise Blue Boulder Opal - Natural Australian Stone, 49XM: This striking boulder opal captivates with a vivid turquoise-blue base that shimmers with subtle flashes of green and violet iridescence, evoking the vivid hues of tropical waters. The stone's smooth,

2026

5.84 Carats Turquoise Blue Boulder Opal - Natural Australian Stone, 49XM

7.62Ct Winton Boulder Opal Polished - Australian Opal - Oval Cabochon, 875A: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

Apr 04, 2026

7.62Ct Winton Boulder Opal Polished - Australian Opal - Oval Cabochon, 875A

Ksmith Heritage Auctioneers

Est. $120-$240

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

1.93Ct Winton Boulder Opal Polished - Australian Opal - Oval Cabochon, 837A: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

Apr 04, 2026

1.93Ct Winton Boulder Opal Polished - Australian Opal - Oval Cabochon, 837A

Ksmith Heritage Auctioneers

Est. $70-$140

3.59Ct Boulder Opal Polished - Australian Opal - Oval Cabochon , 604E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 3.59Ct Dimension: 11 x 8 x 4 mm Treatment: Natural Untreated Shape: Oval Ty

2 days Left

3.59Ct Boulder Opal Polished - Australian Opal - Oval Cabochon , 604E

Ksmith Heritage Auctioneers

Est. $70-$140

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

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