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Results for “Blue Cabochon”

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4.34 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 13.3x9.3mm, 4XM: This striking 4.34-carat Koroit boulder opal cabochon is a natural geological masterpiece, featuring a dramatic banded ironstone matrix with layered hues of deep plum, warm terracotta, and golden ochr

2 days Left

4.34 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 13.3x9.3mm, 4XM

Est. $60-$120

7.13 Carats Multicolor Iridescent Boulder Opal Cabochon - Natural Australian Stone, 50XM: This striking boulder opal cabochon features an elongated, tapered form with a rich brown ironstone matrix interspersed with vibrant, iridescent opal inclusions. The stone's polished surface showcases

2 days Left

7.13 Carats Multicolor Iridescent Boulder Opal Cabochon - Natural Australian Stone, 50XM

Est. $60-$120

6.39 Carats Natural Sleeping Beauty Turquoise Round Cabochon Parcel - Natural Arizona Stones, 51XP: This curated parcel of eight round cabochon Sleeping Beauty turquoise gems showcases a vivid, uniform sky-blue hue, with subtle natural matrix inclusions that highlight their authentic, unaltered orig

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6.39 Carats Natural Sleeping Beauty Turquoise Round Cabochon Parcel - Natural Arizona Stones, 51XP

Est. $20-$40

6.29 Carats Natural Sleeping Beauty Turquoise Oval Cabochon Parcel - Natural Arizona Stones, 52XP: This curated parcel of six oval cabochon Sleeping Beauty turquoise gems showcases a vivid, uniform sky-blue hue, with subtle natural matrix veining that highlights their authentic, unaltered origin. T

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6.29 Carats Natural Sleeping Beauty Turquoise Oval Cabochon Parcel - Natural Arizona Stones, 52XP

Est. $20-$40

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

2 days Left

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

Est. $60-$120

Sapphire 22.79Ct Oval Cut Natural Heated Fancy Color Sapphire Madagascar Cabochon, 289A: 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

Sapphire 22.79Ct Oval Cut Natural Heated Fancy Color Sapphire Madagascar Cabochon, 289A

Ksmith Heritage Auctioneers

Est. $50-$100

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

2 days Left

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

Est. $60-$120

4.38 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 12.9x9.6mm, 12XM: This striking 4.38-carat Koroit boulder opal cabochon is a natural geological masterpiece, featuring a dramatic banded ironstone matrix interwoven with vivid veins of iridescent play-of-color. The ova

2 days Left

4.38 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 12.9x9.6mm, 12XM

Est. $60-$120

4.26 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 87XL: This striking Koroit Yowah opal cabochon, measuring 13.4x9.6mm, features a complex, vein-like ironstone matrix in layered tones of deep plum, rich brown, and warm tan. The matrix is crisscrossed by a

2 days Left

4.26 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 87XL

Est. $60-$120

3.07 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 76XL: This striking Koroit Yowah opal cabochon, measuring 11.2x7.9mm, features a dense, layered ironstone matrix in deep chocolate brown and jet black, with a prominent, elongated inclusion of pale, creamy

2 days Left

3.07 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 76XL

Est. $60-$120

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

2 days Left

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

Est. $60-$120

Sapphire 24.57Ct Oval Cut Natural Heated Fancy Color Sapphire Madagascar Oval Cabochon, 826B: 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

Sapphire 24.57Ct Oval Cut Natural Heated Fancy Color Sapphire Madagascar Oval Cabochon, 826B

Ksmith Heritage Auctioneers

Est. $50-$100

15.19ct Boulder Opal Cabochon - Banded Matrix & Play-of-Color Specimen, 34XM: This 15.19ct boulder opal cabochon, measuring 19x15mm, is a striking example of Australia's iconic gemstone, showcasing the unique beauty of nature's artistry. The freeform cabochon is polished to a s

2 days Left

15.19ct Boulder Opal Cabochon - Banded Matrix & Play-of-Color Specimen, 34XM

Est. $60-$120

Sapphire 19.15Ct Round Cut Natural Heated Fancy Color Sapphire Madagascar Cabochon, 1177A: 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

Sapphire 19.15Ct Round Cut Natural Heated Fancy Color Sapphire Madagascar Cabochon, 1177A

Ksmith Heritage Auctioneers

Est. $50-$100

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

2 days Left

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

Est. $60-$120

Sapphire 24.02Ct Oval Cut Natural Heated Fancy Color Sapphire Madagascar Oval Cabochon, 249B: 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

Sapphire 24.02Ct Oval Cut Natural Heated Fancy Color Sapphire Madagascar Oval Cabochon, 249B

Ksmith Heritage Auctioneers

Est. $50-$100

2.73 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 86XL: This distinctive Koroit Yowah opal cabochon, measuring 12.9x9.5mm, features a striking, fragmented ironstone matrix in deep brown and black, interspersed with broad, milky-blue opal veins. A single, l

2 days Left

2.73 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 86XL

Est. $60-$120

6.68 Carats Cream-Blue Boulder Opal with Dark Matrix - Natural Australian Stone, 36XM: This substantial boulder opal presents a striking visual narrative, with a creamy, pale base that transitions into soft, iridescent blue opal layers, all dramatically framed by a large, dark, textured

2 days Left

6.68 Carats Cream-Blue Boulder Opal with Dark Matrix - Natural Australian Stone, 36XM

Est. $60-$120

3.52 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 82XL: This striking Koroit Yowah opal cabochon, measuring 13.3x9.7mm, features a rich, earthy brown ironstone matrix crisscrossed by a network of vivid, iridescent opal veins. The opal inclusions emit inten

2 days Left

3.52 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 82XL

Est. $60-$120

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

2 days Left

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

Est. $60-$120

14.83ct Boulder Opal Cabochon - Soft Pastel Play-of-Color Specimen, 44XM: This 14.83ct boulder opal cabochon, measuring 24x16mm, is a striking example of Australia's iconic gemstone, showcasing the delicate beauty of nature's artistry. The freeform triangular cabochon is po

2 days Left

14.83ct Boulder Opal Cabochon - Soft Pastel Play-of-Color Specimen, 44XM

Est. $60-$120

8.47Ct Natural Heated Yellow Sapphire Madagascar Pear Cabochon, 1155A: 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

8.47Ct Natural Heated Yellow Sapphire Madagascar Pear Cabochon, 1155A

Ksmith Heritage Auctioneers

Est. $30-$60

15.77 Carats Pietersite Square Cabochon - Natural Namibian Stone, 30XP: This magnificent square cabochon pietersite dazzles with a dramatic, swirling tapestry of deep indigo, slate-blue, and burnt amber hues, interwoven with silvery chatoyant threads that catch the light

2 days Left

15.77 Carats Pietersite Square Cabochon - Natural Namibian Stone, 30XP

Est. $20-$40

Vintage 14k Gold Turquoise Diamond Enamel Cocktail Ring: Vintage 14k Gold Turquoise Diamond Enamel Cocktail Ring This stunning vintage cocktail ring features a vibrant blue cabochon turquoise stone accented by sparkling diamonds. The main stone is a natural

2 days Left

Vintage 14k Gold Turquoise Diamond Enamel Cocktail Ring

Est. $1,598-$1,918

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