Gemstone

The ornamental design for a gemstone, as shown and described.

1. Gemstone

1.1: front

1.2: rear

1.3: top

1.4: bottom

1.5: side

1.6: opposite side

1.7: top perspective

1.8: bottom perspective

Patent	Priority	Assignee	Title
3763665,
4056952,	Jan 23 1976		Diamond bearing microscopic certificate of appraisal
6604382,	Nov 07 2000	OOSHIMA, TOSHIAKI	New-cut diamond shape
6694778,	Aug 25 2000	HOHOEMI BRAINS, INC	Cut design of diamond for ornamental use
6990833,	Sep 23 2002	ROBBINS BROS JEWELRY, INC ; WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT	Faceted circular cut diamond
8844319,	Jan 14 2011		Cut gemstone providing a specific optical pattern
20120079853,
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20170181511,
20170202319,
20190223565,
20190274399,
D437671,	Dec 29 1998	WORLD KITCHEN, LLC	Diamond-shaped candy
D476918,	Mar 29 2002	TOKYO PEARL CO LTD	Diamond
D494083,	Mar 20 2003	ROSY BLUE, N V	RB2-73 round cut precious stone design
D526593,	Jan 19 2005	Rubel & Menasche, societe anonyme	Precious stone
D610940,	May 26 2009	Diamintangibles International, Ltd	Diamond
D698277,	Oct 31 2012		Gemstone
D711279,	Nov 25 2013	Diamintangibles International, Ltd.	Diamond
D711280,	Nov 25 2013	Diamintangibles International, Ltd.	Diamond
D715180,	Oct 25 2013	Krochmal & Lieber	Cut gem stone
D778201,	Nov 11 2014	Kon. Asscher Diamant Maatschappij B.V.	Brilliant
D806604,	Sep 21 2016	Leo Schachter Diamonds L.L.C.	Precious stone
D814339,	Oct 21 2016	H.K. DESIGNS; H K DESIGNS	Gemstone
D823711,	Apr 26 2016	ROSY BLUE, N.V.; ROSY BLUE, N V	Multiple facet gemstone
D831528,	Mar 06 2017	VEGA JEWELDIAM PVT. LTD; VEGA JEWELDIAM PVT LTD	Gemstone
D831529,	Mar 06 2017	VEGA JEWELDIAM PVT. LTD; VEGA JEWELDIAM PVT LTD	Gemstone

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