Tables of Gemstone Identification by Ivo QUINTENS (Author), Roger DEDEYNE (Author) Books With four weighing modes –

With four weighing modes – carat (ct)

Weight: 155g

with constant control given by the efficient heating element and designed circuit

The new GRS Microblock Ball Vise is the latest product in a broad line of precision work-holding tools

Used by stone setters

Tables of Gemstone Identification by Ivo QUINTENS (Author), Roger DEDEYNE (Author) Books With four weighing modes –The most actual and updated tables for the determination of gemstones. This book contains 8 different tables that should lead the user to a fasterand correct determination of transparant gemstones as well as opaqueornamental stones This book is a must for every gemmologist.