Do fake old cut diamonds exist?
I know there is at least one company selling CZ OEC, but is this rare? How can you see if it is a diamond or a simulant?
The reason I ask is that I sometimes buy jewelry containing OEC or OMC diamonds that are not marked as diamonds and priced as if it were fake stones. I am pretty careful and they have always checked out as real diamonds.
I would like to know if taking the care I do I could sometime be wrong and end up buying a mcfakey. Also if there is something else I should be doing to check if the stones are real before buying.
If I find a piece with whitish stones with OEC or OMC cuts then I first look at if they react/look like diamonds.
Second I see if I can date the piece reliably. If it has legible Swedish stamps I access some databases to check year, maker and city. If they are no longer legible or the piece is not Swedish then I try to date from the model and workmanship. I also look for any indications of swapped stones.
Now I attack the stones with a loupe. First I look for facet abrasions, then a bruted girdle and possible chips, then I search for inclusions. If the setting makes it possible it I check the color too.
Doing the above I can distinguish real from fake if the piece is made before the 70s (or at least I have not been wrong yet). But what if I have just been lucky to not encounter a good fake? And what if good CZ starts appearing in old cuts?
I know there is at least one company selling CZ OEC, but is this rare? How can you see if it is a diamond or a simulant?
The reason I ask is that I sometimes buy jewelry containing OEC or OMC diamonds that are not marked as diamonds and priced as if it were fake stones. I am pretty careful and they have always checked out as real diamonds.
I would like to know if taking the care I do I could sometime be wrong and end up buying a mcfakey. Also if there is something else I should be doing to check if the stones are real before buying.
If I find a piece with whitish stones with OEC or OMC cuts then I first look at if they react/look like diamonds.
Second I see if I can date the piece reliably. If it has legible Swedish stamps I access some databases to check year, maker and city. If they are no longer legible or the piece is not Swedish then I try to date from the model and workmanship. I also look for any indications of swapped stones.
Now I attack the stones with a loupe. First I look for facet abrasions, then a bruted girdle and possible chips, then I search for inclusions. If the setting makes it possible it I check the color too.
Doing the above I can distinguish real from fake if the piece is made before the 70s (or at least I have not been wrong yet). But what if I have just been lucky to not encounter a good fake? And what if good CZ starts appearing in old cuts?
That ring is really pretty!
).
. With paste and other stimulants existing during the era that OMC and OEC were cut you can see the difference from real diamonds. However they are now (and been doing it some years?) cutting CZ like OEC, so that is why I posted this thread.
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