Description: The color of these glass filled rubies is gorgeous. However, the stone was unstable for cutting- so it was filled with glass.
Basically, glass powder is sprinkled all over it, then it is placed in a kiln, and the glass powder is baked into it- stabilizing it.
Chemical Composition: Al2O3
Grade: Semi Precious
Appearance: Translucent/ Opaque
Cracks: The cracks have been filled with the glass, to stabilize the stone. They aren't an issue, but when trying to cut this stone, you'll encounter the odd air pocket which leaves a small cavity where you find it. You'll have to grind past the small 1mm air bubble, or live with the blemish.
Cost per Gram: $1.80 /g
Size approximately 1 pc: mm x mm x mm
Weight approximately 1 pc: g
Rough is rough. We do our best to grade and describe pieces in the lot, but ultimately, they all differ.