DIAMOND FOR DECORATION, WHICH HAS TWO-STAGE PAVILION Russian patent published in 2011 - IPC A44C17/00 A44C27/00 

Abstract RU 2427299 C1

FIELD: personal demand items.

SUBSTANCE: invention is designed for being used in jewellery industry. Diamond for decoration is made in the form of very bright diamond with multiple reflection patterns when it is viewed from above the facet of the platform and facets of diamond crown. Diamond has the same crown as the diamond with round brilliant cut, but its pavilion consists of the first pavilion and the second pavilion, which are separated with horizontal separation line. The second pavilion represents octagonal pyramid and its side edges form the main facets of the second pavilion. The first pavilion represents hexadecagonal truncated pyramid with upper edge on horizontal separation line, and its lateral sides form the first lower facets of girdle. The main facets of the first pavilion spread from girdle and between the first lower facets of girdle, inward between the main facets of the second pavilion.

EFFECT: diamond for decoration, which has two-stage pavilion, in comparison to conventional diamond with round brilliant cut is brighter and has doubled number of reflection patterns.

12 dwg

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RU 2 427 299 C1

Authors

Matsumura Tamotsu

Kavabuti Josinori

Itokh Akira

Dates

2011-08-27Published

2008-01-09Filed