Polish

Polish is graded on a scale of Excellent to Poor, on presence and visibility of polish features at 10x magnification.

For more in depth information on fluorescence visit our education section here.

Diamond Polish Specifications

Excellent No polish defects visible at 10x magnification.
Very Good Any defects are extremely difficult to see at 10x magnification.
Good Any defects are difficult to see at 10x magnification.
Fair Defects are noticeable at 10x magnification, and may be visible to the naked eye. Not offered by Austen Blake.
Poor Defects are visible to the naked eye. Not offered by Austen Blake.