Results for “ironstone”

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18.30ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 13AV: Hand polished small rectangular cushion cabochon of natural Queensland matrix boulder opal, resting upon speckled dark ironstone matrix threaded with vivid branching electric blue opal veins accented

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18.30ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 13AV

Est.

$50

-

$100

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

25.55ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 17AV: Hand polished large rounded square cushion cabochon of natural Queensland matrix boulder opal, featuring deep dark speckled ironstone matrix threaded with intricate golden veining interspersed with lu

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25.55ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 17AV

Est.

$50

-

$100

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

5.69ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 19AV: Hand polished petite teardrop pear cabochon crafted from natural Queensland matrix boulder opal, featuring dark speckled ironstone host rock crisscrossed with vivid branching neon turquoise and electr

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5.69ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 19AV

Est.

$50

-

$100

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

85.75ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 48YL: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

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85.75ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 48YL

Est.

$50

-

$100

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

6.02ct Natural Australian Queensland Matrix Boulder Opal Triangular Cabochon, 54AX: Hand polished sleek freeform triangular cabochon crafted from natural Queensland matrix boulder opal, featuring fine granular deep brown ironstone matrix interlaced with an intricate spiderweb network

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6.02ct Natural Australian Queensland Matrix Boulder Opal Triangular Cabochon, 54AX

Est.

$50

-

$100

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

21.67ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 52AY: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

21.67ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 52AY

Lazo HeritageThung Wat Don, Sathorn, Bangkok

6.09 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 84XL: This exceptional Koroit Yowah opal cabochon, calibrated to 17.3x10.7x3.2mm, features a dense, textured ironstone matrix in layered tones of deep chocolate brown, bronze, and jet black. Scattered throu

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6.09 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 84XL

Est.

$50

-

$100

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

$9.12ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 21AV: Hand polished small rounded rectangular cushion cabochon crafted from natural Queensland matrix boulder opal, featuring dark speckled ironstone host matrix interwoven with intricate fractal opal veins$

2026

9.12ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 21AV

Lazo HeritageThung Wat Don, Sathorn, Bangkok

4.19 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 72XL: This substantial Koroit Yowah opal cabochon, measuring 18x9.3x2.9mm, features a dense, textured ironstone matrix in layered tones of deep chocolate brown, warm tan, and jet black. The stone's internal

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4.19 Carats Koroit Yowah Opal Cabochon - Natural Australian Single Stone, 72XL

Est.

$50

-

$100

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

13.47ct Soul Prism Natural Multicolour Boulder Opal: 13.47ct Soul Prism Natural Multicolour Boulder Opal Embrace the cosmic dance of color and energy with this 13.47ct Natural Multicolour Boulder Opal, a powerful stone believed to awaken creativity, int

Jul 08, 2026

13.47ct Soul Prism Natural Multicolour Boulder Opal

Est.

$350

-

$500

$185

Weatherham Estate TreasuresCobourg, ON

12.56ct Natural Australian Queensland Matrix Boulder Opal Rounded Rectangle Cabochon, 16AV: Hand polished compact rounded rectangular cabochon of natural Queensland matrix boulder opal, featuring deep speckled chocolate brown ironstone matrix crisscrossed with thick luminous golden amber opa

2026

12.56ct Natural Australian Queensland Matrix Boulder Opal Rounded Rectangle Cabochon, 16AV

Lazo HeritageThung Wat Don, Sathorn, Bangkok

7.66ct Natural Australian Queensland Matrix Boulder Opal Rounded Rectangle Cabochon, 75AV: Hand polished slim rounded rectangular bar cabochon crafted from natural Queensland matrix boulder opal, featuring rich dark speckled brown ironstone matrix threaded with interwoven golden amber and l

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7.66ct Natural Australian Queensland Matrix Boulder Opal Rounded Rectangle Cabochon, 75AV

Est.

$50

-

$100

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

23.33ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 77AT: Hand polished rounded square cushion cabochon of natural Queensland matrix boulder opal, set upon rich dark ironstone matrix threaded with intricate web-like opal veins displaying cyan, emerald green,

2026

23.33ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 77AT

Lazo HeritageThung Wat Don, Sathorn, Bangkok

17.76ct Natural Australian Queensland Matrix Boulder Opal Rounded Square Cabochon, 74AV: Hand polished medium rounded square cushion cabochon crafted from natural Queensland matrix boulder opal, featuring warm speckled tan-brown ironstone matrix crisscrossed with thick vivid violet-purple

2026

17.76ct Natural Australian Queensland Matrix Boulder Opal Rounded Square Cabochon, 74AV

Lazo HeritageThung Wat Don, Sathorn, Bangkok

8.47ct Natural Australian Queensland Matrix Boulder Opal Rounded Square Cabochon, 69AV: Hand polished petite rounded square cushion cabochon crafted from natural Queensland matrix boulder opal, featuring deep dark speckled ironstone matrix anchored by a thick sweeping golden-amber opal v

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8.47ct Natural Australian Queensland Matrix Boulder Opal Rounded Square Cabochon, 69AV

Est.

$50

-

$100

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

23.65ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 45YP: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

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23.65ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 45YP

Est.

$70

-

$140

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

5.82 Carats Soft Blue and Iridescent Green Boulder Opal Cabochon - Natural Australian Stone, 46XM: This striking boulder opal cabochon features a smooth, triangular form with a rich brown ironstone matrix framing a luminous core of soft blue opal, accented by delicate iridescent green and golden fl

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5.82 Carats Soft Blue and Iridescent Green Boulder Opal Cabochon - Natural Australian Stone, 46XM

Est.

$70

-

$140

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

58.98ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 73AX: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

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58.98ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 73AX

Est.

$50

-

$100

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

68.07ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 67YL: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

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68.07ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 67YL

Est.

$50

-

$100

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

10.62ct Natural Australian Queensland Matrix Boulder Opal Freeform Teardrop Cabochon, 56AX: Hand polished organic freeform teardrop cabochon of natural Queensland matrix boulder opal, featuring deep dark granular ironstone matrix crisscrossed with thick branching opal veins blending pale mil

2026

10.62ct Natural Australian Queensland Matrix Boulder Opal Freeform Teardrop Cabochon, 56AX

Lazo HeritageThung Wat Don, Sathorn, Bangkok

22.30ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 24YP: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

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22.30ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 24YP

Est.

$70

-

$140

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

27.55ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 5YP: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

27.55ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 5YP

Lazo HeritageThung Wat Don, Sathorn, Bangkok

32.92ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 72AY: Natural sliced slab rough of Queensland boulder opal cutting grade, featuring rich color ironstone matrix with patterns. The face clearly reveals extensive opal veining and pocket formations running t

2026

32.92ct Natural Australian Queensland Boulder Opal Sliced Slab Cutting Rough, 72AY

Lazo HeritageThung Wat Don, Sathorn, Bangkok

18.21ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 12AV: Hand polished compact rounded square cushion cabochon formed from natural Queensland matrix boulder opal, featuring warm speckled brown ironstone host matrix crisscrossed with intricate branching opal

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18.21ct Natural Australian Queensland Matrix Boulder Opal Cabochon, 12AV

Est.

$50

-

$100

$5

Lazo HeritageThung Wat Don, Sathorn, Bangkok

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