I had a customer show me some rings she bought off the internet.
Set with Alexandrite. Paid $150 each ring. Stones 16 by 10.
Yep not Alexandrite Mystic Topaz. Not a happy camper.
Also was shown some stones by a customer who wanted to sell some
stones she bought from Pilbara Diamonds. Blue Topaz and Madeira Topaz
looked liked glass and the Madeira Topaz was scratched on the table.
Paid a lot of money for low grade stones and was not happy when I
did not want to buy because of low quality.
all the best