Very practical thing! Now You can with certainty see what is real diamond and what is fake. I try it on my wife rings and necklaces with real stone and fake one and instrument was correct in 100%.I try it on my watch collection to see if tester can tell what is sapphire glass and what is ordinary mineral glass, with my surprise "tester" is very accurately so the difference between two type of watch glass!Now nobody can sell me a watch with "sapphire Cristal" because it is very easy to tell the difference with this tester!I will highly recommend this diamond tester, because is very accurate and is very easy to use.
Very practical thing! Now You can with certainty see what is real diamond and what is fake. I try it on my wife rings and necklaces with real stone and fake one and instrument was correct in 100%.I try it on my watch collection to see if tester can tell what is sapphire glass and what is ordinary mineral glass, with my surprise "tester" is very accurately so the difference between two type of watch glass!Now nobody can sell me a watch with "sapphire Cristal" because it is very easy to tell the difference with this tester!I will highly recommend this diamond tester, because is very accurate and is very easy to use.
lubos.lp
Apr 21,2020
Toto zboži mi přišlo do evropy velmi richle zhruba dva tydny což bylo dost rychle kvalita dobra moc si toho cenim.Doporučuji.
Manuel Araujo
Nov 02,2019
I am please with this device very acurate fir the vale that i paid for.