EP 0587851 B1 19970730 - CUT DIAMOND
Title (en)
CUT DIAMOND
Title (de)
GESCHLIFFENER DIAMANT
Title (fr)
DIAMANT POLI
Publication
Application
Priority
- DE 9300304 W 19930401
- DE 4210995 A 19920402
Abstract (en)
[origin: WO9319635A1] The description relates to a tabletless diamond (1) in which the facets (4) of the upper part (2) are more steeply inclined towards the central plane than those (7) of the lower part (5). In order to obtain a diamond which gives an impression of hardness and clarity in a top view with the smallest possible wastage of material, the angle (a) between one of the equally sized upper facets (4) and the preferably polygonal girdle and that (b) between one of the equally sized lower facets (7) and the girdle is such that the girdle appears essentially more uniformly and reflectively brilliant in a top view with a central luminous star inside it.
IPC 1-7
IPC 8 full level
A44C 17/00 (2006.01)
CPC (source: EP US)
A44C 17/001 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE
DOCDB simple family (publication)
WO 9319635 A1 19931014; AT E155968 T1 19970815; DE 4210995 A1 19931007; DE 4210995 C2 19970403; DE 59306999 D1 19970904; DE 9320280 U1 19940601; DK 0587851 T3 19971229; EP 0587851 A1 19940323; EP 0587851 B1 19970730; ES 2107014 T3 19971116; GR 3025096 T3 19980130; HK 1001711 A1 19980703; JP 2758266 B2 19980528; JP H06507821 A 19940908; US 5454235 A 19951003; US 5657647 A 19970819
DOCDB simple family (application)
DE 9300304 W 19930401; AT 93907771 T 19930401; DE 4210995 A 19920402; DE 59306999 T 19930401; DE 9320280 U 19930401; DK 93907771 T 19930401; EP 93907771 A 19930401; ES 93907771 T 19930401; GR 970402737 T 19971020; HK 98100589 A 19980122; JP 51698093 A 19930401; US 15705894 A 19940504; US 50691995 A 19950726