41.75ct Koroit Boulder Opal Stone Spinel approximate total carat weight: 1

approximate total carat weight: 1

The Setting: Cast Two Tone Ornate Prong Set Ring

About Apatite:

stone measurements: 20

8 Standard Round Brilliant Cuts

41.75ct Koroit Boulder Opal Stone Spinel approximate total carat weight: 1Koroit Boulder Opal: Weight (carats) 41. 75cts Dimensions (millimeters) 45. 97mm x 25. 67mm x 4. 6mm Origin Koroit Mining District, Queensland, Australia Shape freeform cabochon cut Colors blue, aqua, green, purple, violet Brightness of Color Play ( 1 to 5+) 2 Darkness of Body (+1 to 5 ) N A Treatments Enhancements none, natural SKU Number #357 Additional Notes: Freeform cut patterned boulder opal from the Koroit Mining District in Queensland,