Diamond Dictionary Part III - M-Z
Marquise Cut: A style of diamond cutting in which the girdle outline is boat shaped, or oval like that of an “American football.”
Mohs Scale: the most well know scale to measures relative hardness of minerals is know as the Mohs scales.
Natural: The original surface of a rough diamond that is sometimes left by the cutter on a fashioned stone, usually on the girdle Some consider naturals to be blemishes on a stone while others just dismiss this as not being a blemish. The school of though is as long as the girdle outline is not flattened or extends beyond the width of a medium girdle this is a perfectly acceptable.
Oval Cut: This is a brilliant cut in which the girdle outline is elliptical.
Pavilion: The portion of a faceted diamond or gemstone located below the girdle.
Pave’: A Pave’ setting is created when the surface of ring or piece of jewelry is covered with tiny diamonds. Tiny diamonds are inserted in small holes that have been drilled out of the ring shank. The diamonds of all of relatively the same size and are placed in rows across the surface of the ring. This is done with great care so as to fill as much space as possible without touching each other. With an exercise as tedious as this the better cut diamonds used the better the overall appearance of the completed piece. Each tiny diamond, weighing just a few points, is fully cut with 58 facets. After placing each diamond is complete, tiny bits of metal from the surface of the shank are pushed over the edge of the diamond, forming tiny beads to hold the stone in place. If a section of the ring is Pav�-set, with certain areas tapering to a point, the diamonds should diminish in size as the Pav� area narrows. This requires the most precise selection of diamonds.
Pear shaped cut: This is a variation of the brilliant cut diamond. Usually having 58 facets, with a pear shaped girdle outline. They often have 56 facets when the pavilion facets at the head and tail are eliminated.
Polish: The smoothness of each facet after it has been polished is graded on a scale from fair (F) to excellent (EX). Polish marks cannot be seen by the unaided eye and have a subtle if not minute effect to the brilliance of a stone.
Round Cut: See definition for Brilliant Cut.
SI: Abbreviation for, slightly included. Refers to the imperfections or inclusions in a diamond.
Symmetry: This is the alignment of the facets with each other. If a stone�s facet varies significantly with unequal measurements, this will cause loss of light and loss of brilliance. Contributors to this will be consistency in the girdle around a stone and unequal facets.
Table: The large facet that caps the crown of a faceted diamond or gemstone.
Table Percentage: The size of the table of a faceted diamond, expressed as a percentage of the stone’s diameter, is a dimension used in proportion analysis.
VS: Abbreviation for, very slightly included. Refers to the imperfections or inclusions in a diamond.
VVS: Abbreviation for, very very slightly included. Refers to the imperfections or inclusions in a diamond.
 All of the Definitions for the Diamond Dictionary Came from HERE.
October 30th, 2007 at 1:29 pm
hi…
will read it later…