Fracture Filled Diamond - (ENHANCEMENT) - To help stones apparent grade. This doesn't stay in the diamond forever.<Introduced 1987>
Mr. ZVI YEHUDA
Filled Material - use glass and lead.
Diamonds R.I. Refractive Index - 2.417
Glass Refractive Index - 1.45-1.70
Glass and Lead Refractive Index - 2.10
Fun TIP: Lower Refractive Index see through material better. Does not get better clarity grade.
WHY Fracture Fill?
more affordable.Approve apparent
clarity.WHAT CAN be filled?
- Laser drill holes
- Sometimes a Knot
Ultrasonic no effect
Steaming no effect
Sudden cooling (185 degrees Celsius)
Setting no effect
Torch Will effect filled damage
Boiling Acid Will effect filled damage
Repolishing Will effect filled damage
Flash Effect - Show two different colors when stone is viewed in different positions.
Dark Background - Feature shows orange or yellowishorange into BLUE
Purple or pink into green, yellowishgreen
-Iridescent color - Rainbow of colors seen in feather when more colors are seen when viewed show filled.
-Glass Bubbles - Usually big inclusion when stone is filled.
-Crackled Texture - Tip of Filling gets cracked (becomes transparent).