Loupe clean
A diamond is termed loupe clean when an experienced expert finds no internal defects with an aplanatic and achromatic 10 x loupe.
loupe clean Describing a flawless gem; no visible inclusions under 10X magnification.
luster Reflections off the surface of a gem or pearl.
Loupe Clean A gemstone is said to be Loupe Clean when no inclusions or defects are visible when the gem is viewed with 10 times magnification. See also Eye Clean.
Loupe Clean
[N] Not enhanced.
Quantity Available: 2 pairs
Mozambique Garnet$ 19.99/pair ...
Loupe Clean
Indicating that a diamond contains no visible inclusions when using the industry standard magnification of ten times (10x).
Lower Girdle Facet ...
Loupe Clean
Usually a misused term to describe a diamond as being free of flaws with magnification. SEE "PERFECT" OR "FLAWLESS"
Make ...
Loupe clean
Highest degree of clarity awarded by the International Diamond Council whereby the stone does not have a pinpoint flaw larger than 5 microns in diameter when seen under a magnification of 10X.
Luminescence ...
"Loupe clean": A misleading term, since it suggests that no flaws are visible at less than 10X power magnification. Prohibited by the AGS and the Federal Trade Commission.
Luster: The quality of light reflected from the diamond.
M Top ...
The basic rule with Tanzanite is that it should be at least eye clean but preferably loupe clean also. Top grade stones are loupe clean. Any lesser clarity grade will affect the value downwards and denotes a lower grade stone.
We also carry gemstones which are loupe clean, meaning that any inclusions are almost invisible even when using 10x magnification.
 See also: Clean, Loupe, Color, Gemstone, Stone
  
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