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bid4opal

Big Sized knobby opal formation rough split 105.00cts Bright Light Blues fires showing in the bars to chase & explore 29x20x18mm & 28x23x19mm Lot B4-A454

B4-A454

Delivery Info

UK: 2-3 days; International: 7-14 days

Lot Title: Big Sized Knobby Opal Formation Rough Split – 105.00cts Bright Light Blues Showing in Bars
Lot Number: B4-A454

Details:

  • Origin: Lightning Ridge, Australia

  • Type: Knobby Opal Formation Rough (Split Pair)

  • Carat Weight: 105.00cts total

  • Size: 29x20x18mm & 28x23x19mm

  • Features: Large, chunky split pair showing light blue fire within visible bar zones

Description:
This large 105ct split formation from Lightning Ridge offers a chunky knobby profile with bars showing light blue fires. While the bars appear promising, the size and depth of the formation mean careful exploration will be needed to unlock cutting potential. A great gamble piece for those looking to work a big opal parcel with visible colour hints and hidden depth.

🎲 Gamble Grade C (Gamble)
Some colour hints visible, but depth and consistency are uncertain – high risk with potential reward through careful cutting.


Grade Key
Grade     Description
🔥 A+   Clear visible colour bar, low-risk cut, high gem potential
🔥 A    Strong face showing, low to medium risk, good cutting yield
⚠️ B    Colour visible, moderate risk, requires careful cutting
🎲 C (Gamble) Some colour hints, unknown depth/consistency, high risk
❓ D (Blind Gamble) No visible colour, full risk – mystery piece




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