I have enough jewelry to warrant me buying a presidium gem tester. I also wanted to test a rock quartz antique locket I bought.
It arrived and I just tested all my jewelry:
Fun experience...
2 lockets with stones
1 rock quartz locket
11 rings
6 gemstone pendants
The results... all passed... except 1 ring and 1 pendant by a well known jeweler many use here.
The pendant had blue stones sold as tanzanites and purple stones sold as sapphires. The blue stones barely register as glass. The purple register as somewhere around spinel.
The ring I had custom made also had sapphires. the center one tests for sapphire. The smaller stones, again, do not. I've tested all 16 of the outer stones.... not 1 tests as sapphire....Possibly topaz or something even lower around 5 ish....
So I reset the tester... over and over, same results at least 5 times...Only on those stones.
I considered it was due to the size of them (under 3 mm) so I tested all the other stones in my rings under 3 mm. Stones by other sellers passed, (including the spinels from voce that were 3 mm, and a ring I bought off LT with 1 mm reddish spinels on the side).
I tested some quality beads I bought to make bracelets (small). All passed
So this leaves me with the conclusion that this seller is not using the stones they claim, or they are buying stones and are being lied to about what they are buying.
But I'm going to send the pendant and ring out for outside testing now to confirm.... It has me confused and very disheartened if this is true. I am hoping its not.
If you have custom jewelry made... get it tested!
It arrived and I just tested all my jewelry:
Fun experience...
2 lockets with stones
1 rock quartz locket
11 rings
6 gemstone pendants
The results... all passed... except 1 ring and 1 pendant by a well known jeweler many use here.
The pendant had blue stones sold as tanzanites and purple stones sold as sapphires. The blue stones barely register as glass. The purple register as somewhere around spinel.
The ring I had custom made also had sapphires. the center one tests for sapphire. The smaller stones, again, do not. I've tested all 16 of the outer stones.... not 1 tests as sapphire....Possibly topaz or something even lower around 5 ish....
So I reset the tester... over and over, same results at least 5 times...Only on those stones.
I considered it was due to the size of them (under 3 mm) so I tested all the other stones in my rings under 3 mm. Stones by other sellers passed, (including the spinels from voce that were 3 mm, and a ring I bought off LT with 1 mm reddish spinels on the side).
I tested some quality beads I bought to make bracelets (small). All passed
So this leaves me with the conclusion that this seller is not using the stones they claim, or they are buying stones and are being lied to about what they are buying.
But I'm going to send the pendant and ring out for outside testing now to confirm.... It has me confused and very disheartened if this is true. I am hoping its not.
If you have custom jewelry made... get it tested!
Last edited: