Diamond and gemstone tester

[stci]

Hi!

This question has been asked but I can't retreive the topic.

Would you please suggest me a good diamond and gemstone tester please. Could you give me the mark?

Thank you in advance for your help.

 

[Dancing Fire]

mine is a RS Mizar prestige series II which i purchased about 6 yrs ago.

 

[stci]

If I would like to know if a stone is ruby, emerald or other, is this one do the job or only for diamond, CZ and white sapphire? How about moissanite?

 

[Pandora II]

I wouldn't use a diamond tester for anything other than separating diamonds from CZ.

Certainly wouldn't rely on one for coloured stones. For a start even if it gives a decent reading it won't distinguish between natural and synthetic. So much depends on the condition of the stone as well as to whether you will get an accurate response.

I'm a qualified gemmologist, during my studies we spent 30 minutes playing with diamond/gemstone testers and that was it. None of us bought one to add to our equipment. I can see it being of use if you are buying a lot of second-hand jewellery and want to check melee out quickly but otherwise I think they are potentially problematic if you don't have the equipment and knowledge to double check the results.

 

[stci]

Thank you Pandora and DC! I think I will pass on this instrument.