63.06 ct Fantastic Cabochon Shape (46 x 24 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone. Boulder Opal. Mohs Hardness: 5.5-6.5 Found in Australia History: Opal is a semi-transparent solidified mineral composed of silicon and water.
| Gemstone Type | Boulder Opal |
| Stone Type | Boulder Opal |
| Total Carat Weight (TCW) | 63.06 |
| Total Carat Weight | 63.06 |
| Size | 45.78 x 23.91 x 5.56 mm |
| Gemstone Color | Multi Color |
| Fancy Color | Multi Color |
| Gemstone Shape | Cabochon |
| Clarity | Opaque |
| Gemstone Treatment | Unheated / Untreated |
| Country/Region Of Manufacture | Australia |
| Brand | TargetGems |
| Item Length | 45.78 |
| Item Width | 23.91 |
| Item Depth | 5.56 |
| Transparency | Opaque |
| Cut Grade | Very Good |
| Cut | Very Good |
| Country Of Origin | Australia |
| Luster | Very Good |
| Natural/Lab-Created | Natural |
| Hardness | 6.5 Mohs scale |
| SKU | 229693-1A55LI |
| Gemstone Creation | Natural |
| Gemstone Form | Polished |
| Gemstone Clarity Grade | Opaque |
I like how the 2x4mm 0.1ct size keeps the piece light and understated on the finger.