FIELD: personal use articles.
SUBSTANCE: invention is designed for being used in jewellery industry. The method for faceting diamonds with a culet involves faceting of a round-shaped diamond faceted so that to form a culet. Within the culet, one grinds out and polishes arc-shaped grooves from opposite edges of the diamond bottom facets. The arc-shaped grooves have a section angle equal to 41°.
EFFECT: ensuring complete reflection of light from the culet thus creating additional brilliance of the stone.
2 dwg
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