Rough Girdle: a grainy or pitted girdle surface usually caused by poor workmanship. Surface Graining: structural irregularities in crystal growth; may appear as faint lines, causing grooved or wavy surfaces and often cross facet junctions.
Rough Girdle Rough Girdles are rough, grainy spots on the Girdle caused by bad polishing. Scratches ...
Rough Girdle: A grainy or pitted girdle surface, often with nicks. Round Brilliant cut: The most common cut containing 58 facets.
Rough Girdle - If a diamond is rounded up too quickly in the fashioning process, the surface of the girdle, instead of having the smoothness and waxy luster of a finely turned girdle, will be rough or granular.
rough girdle A girdler will sometimes apply too much pressure in the girdling (rounding) process and as a result leave a rough girdle which gives a granular appearance under 10x magnification.
Fig 302 Rough girdle with fringes Fig 303 Rough girdle with fringes Girdles may be of very varying quality, for instance, bruted, polished, faceted fine-grained and "tight", or rough, coarse-grained and "porous".
rough girdle A girdle surface that is irregular, pitted, and sometimes chipped. This can be a sign of weakness. burn marks Marks caused by either too fast polishing or a real heat source. It can be polished out.
See also: Girdle, Inclusion, Rough, Diamond, Facet
 
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