Joined: Mon Sep 11, 2006 7:11 am Posts: 102 Location: Cape Town
I received a string of pearls for an appraisal and the client said they were sold as South Sea pearls for R200000 ($14250). The red flag went up due to the lustre and shape. The lustre appears to be too good for South Sea. They are a 'fat doughnut' shape and the size range is 10.50 - 11.00mm. I had them X-rayed but this was not conclusive as no nacre was clear enough to make a call. I then had a CT scan done on one of the pearls which indicates Freshwater. This will most probably end up in court, so I need to be absolutely sure of my facts.
I would appreciate any comments. Attached is a pic of the CT scan.
Post subject: Re: South Sea versus freshwater pearls
Posted: Thu Apr 18, 2019 4:43 pm
Gold Member
Joined: Wed Jan 23, 2013 5:29 pm Posts: 1047 Location: Paris
Perhaps, a picture of the necklace and pearls might help.
If the case needs to go to court, a lab report might be necessary, to determine if the pearls are nucleated, and the chemical composition of the nacre : freshwater (with manganese) or saltwater (without).
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