Postby AG2012 » Tue Jun 25, 2019 4:41 pm
Hi,
As there is no karat fineness and hallmarks for gold, it is obviously rolled gold or gold filled jewelry.
Not gold - plated, but much thicker layer of gold heat-fused to base metal and unlike extremely thin gold-plating, it exceeds 5% of gold per total weight.
Besides, pearls and amethysts are well set;in the link given by Trev it seems they produced imitation jewelry, but amethysts are not synthetic for two reasons. Firstly, amethyst is abundant and relatively inexpensive, so there would seem to be no incentive to synthesize it, and secondly, commercially available synthetic amethyst did not exist before about 1970.
Regards