Chocolate opal - 13.73 ct

Description
Chocolate opal - 13.73 ct
Cabochon - GIA

Ethiopian chocolate black opal, originating from a mine that is now closed.
Old stone from the 1970s

GIA certificate number 5201080291

Dimensions: 15.34 x 14.15 x 10.77 mm
Weight: 13.73 ct
Cut: cabochon
Clarity: opaque
Vitreous lustre.
Very strong colour play (green, violet, red, yellow), lots of colours
Family: silicates
Variety: opal
Treatment: natural, untreated, unheated
Excellent condition.
Stone collected in Ethiopia, then cut in Antwerp

We are gemmologists who have worked at the GIA. We work for the gemmology research laboratory LGR ('Laboratoire de Gemmologie et Recherche'). We have direct access to the mine and buy rough stones in bulk which we cut in France.
We guarantee that all our stones are genuine.

Lot details
Stone
Chocolate opal
Total carat weight
13.73
Cut & Shape
Cabochon
Certification
GIA
Treatment
No indication of treatments
Transparency/ clarity
Opaque
Sealed
No
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