Ships within 48 hours · Estimated delivery Sep 17 - Sep 22
no need to adjust the sensitivity according to the size of the stone and the temperature
Working distance: 2cm (on high magnification) to 17cm (on low magnification)
1) Clean the top (table) of the stone with a polishing cloth
Reading 'locks' as soon as it's stable (about 3 seconds)
Light: LED
Ari synthetic-diamond tester by Presidium Options_With light no need to adjust theSummary The Presidium ARI is an essential tool for the experienced jeweller and professional diamond dealer, it is for testing known diamonds, to see if they are natural or synthetic (= lab grown). That means you must first test the stone on a good quality diamond tester first this is not included. If you are not an experienced jeweller or professional diamond dealer: check with a simple (but good quality) diamond tester to make sure you have a