System for testing the characteristics of precious stones

Abstract

A device (2) for illuminating a precious stone (10), including a light projector (3) equipped with a main lighting module (14a) for generating illumination configured to reveal the characteristics of the precious stone (10), the main module (14a) including a circuit board (25) including a plurality of light sources (16) each emitting a light beam and an optical diffusion element arranged facing the plurality of light sources (16), the main module (14a) including a reflector (21) arranged between the support element (7) and the optical diffusion element, and including at least one cavity capable of reflecting at least part of the light beams towards the optical diffusion element, each cavity being formed by a back (17) and peripheral walls (18a, 18b, 18c) extending from the back (17) towards the optical diffusion element (23), with their respective tops arranged at a first distance (E1) from the optical diffusion element.

Dependencies are inferred from the claim text.