Shared Flashcard Set

Details

Diamond Essentials
Inclusions and Blemishes
23
English
Professional
09/27/2006

Additional English Flashcards

 


 

Cards

Term
Bruise
Definition
tiny opening or hole accompanied by tiny, root-like feathers
Term
Cavity
Definition
an opening or hole created when a crystal is pulled out, or when a feather breaks away
Term
Chip
Definition
A rounded, shallow opening on a facet junction, usually on the girdle edge or culet
Term
Cloud
Definition
a hazy or milky area made up of a number of very small inclusions grouped together
Term
Feather
Definition
a separation or break that reaches the surface, and is often white and feathery or shiny in apperance
Term
Grain center
Definition
a small area of concentrated crystal structure distortion, usually with a pin-point ir thread-like appearance
Term
Included crystal
Definition
a mineral crystal inclosed within a diamond
Term
Indented natural
Definition
a natural that dips below the finished diamond
Term
Internal Graining
Definition
internal indications of irregular crystal growth; may appear like faint lines or streaks against transparent background, or may appear milky, colored, or reflective
Term
Internal laser drilling
Definition
laser drilling within a diamond that doesnt reach the surface of a fashioned stone
Term
Laser drill hole
Definition
a tiny tube made by a laser; the surface opening might resemble a pit, while the tube might resemble a needle
Term
Needle
Definition
a long, thin included crystal that looks like a tiny rod
Term
Pinpoint
Definition
a very small included crystal, normally seen under 10x as a tiny dot, either singly or in groups or strings
Term
Twinning wisp
Definition
flat or ribbon-like cloudy area produced by crystal structure distortion
Term
Abrasion (B)
Definition
A series of tiny nicks along the facets juntions. producing white fuzzy lines instead of sharp facet edges
Term
Extra Facet (B)
Definition
a facet placed without regard for symmetry and not required byt he cutting style
Term
Lizard skin(B)
Definition
Wavy or bumpy area on the surface of a polished diamond
Term
Natural (B)
Definition
part of the original rough diamonds surface that remains on the polished stone
Term
Nick (B)
Definition
a small notch in the girdle or a facet edge that, at 10x looks like a white dot with no apparent depth
Term
Pit (B)
Definition
a tiny opening that resembles a white dot with no apparent depth
Term
Polished lines (B)
Definition
fine parallel grooves and ridges left on a gems facet as a result of the polishing process
Term
Polish mark (B)
Definition
whitish film on the surface of a facet caused by excessive heat during polishing (also called burn mark or burn facet)
Term
Rough girdle (B)
Definition
a grainy or pitted girdle surface, often with nicks
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