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Coober Pedy Rainbows

Orange / Yellow Dominant Fires to cut 7.75cts Coober Pedy Seam opal rough 19x13x7mm Lot B4-A081

B4-A081

Delivery Info

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

Lot Title: Orange / Yellow Dominant Fires to Cut – 7.75cts Coober Pedy Seam Opal Rough
Lot Number: B4-A081
Weight: 7.75 carats
Dimensions: 19 x 13 x 7 mm

Details:
Origin: Coober Pedy, South Australia
Type: Seam Opal (Rough)
Body Tone: Light base
Play-of-Colour: Orange and yellow dominant fire
Form: Compact seam shape
Use: Ready for shaping and polishing

Description:
This 7.75ct Coober Pedy seam opal rough features vibrant orange and yellow fire across a workable light base. The colour sits well for cutting, though bar depth and coverage require a little assessment. A promising piece for cutters who enjoy strong colour and moderate shaping challenges.

⚠️ Cutters/Gamble Grade B – Colour is visible and positioned for cutting, but care is needed to follow the bar. Moderate risk with good potential.


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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