Phenomenal gems are gems that show unusual optical effects caused by reflection, interference and refraction usually from oriented inclusions. For example, the play-of-colour in opal is caused by interference, others like star ruby, star sapphire, cat’s eye chrysoberyl are caused by the internal reflection of needle-like inclusions, etc.
Lightning Ridge Black Opal, Oval
Product Code: OP 0006
Carat: 11.68
Size approximately: 19.73 x 14.30 x 6.86 mm
This product is only available for self-collection.
1 pc Diamond
Product Code: DIA 0017
Carat: 0.57
Colour: Fancy Grayish Yellowish Green
Size approximately: 5.32 x 5.31 x 3.20 mm
GIA Certificate: GIA1132524761 (https://www.gia.edu/report-check?reportno=1132524761)
Video of colour change: https://www.youtube.com/watch?v=7CwWzy_yS5E
Cabochon Dimensions: 6.90 x 6.67 x 3.92mm Weight: 1.82ct Origin: Sri Lanka Note: Price stated is for gemstone only. Ring is used for visualization purpose. Colour of gemstone may differ...
Cabochon Dimensions: 7.33 x 5.50 x 4.61mm Weight: 1.81ct Origin: Sri Lanka Note: Price stated is for gemstone only. Ring is used for visualization purpose. Colour of gemstone may differ...