I know it is a tough process to look for natural pearls, and find some that aren't! You have always been able to face it when you have a pearl that isn't natural. I call that real "Pearl Courage"! Fortunately, you have been able to score a lot of naturals too. I wonder about the future of finding old natural pearls.... It seems to be getting tougher.
After coming to know you so well over the years, I buy in complete confidence from you, knowing that you stand behind your naturals. In, fact, I think you should sell at prices just under a fair retail with just enough discounted to pay to get a pearl or a few more, if it is a necklace, tested. As far as I can tell, there does not seem to be a GIA in Australia and you have to send out of the country to get tested. that adds all the extra postage and insurance for testing, to your price. It seems just as fair to discount enough to let the new owner do it.
I want you get as much value as you can, because I think it will get harder and harder to keep finding them, and turning them, at such low prices as you have in the past. Though I have benefited from your largess in the past, I am now feeling I probably got too good a deal.....!
Has anyone knowingly got any South Sea maxima shell jewelry carvings to candle? Some of those carvings made from the shells for rings and pendants are as beautiful in luster as the pearls themselves, and it is hard to tell it is shell from the outside. They are translucent, but maybe they have striations or something inside, if candled. My best friend from college wears a cabochon style ring of carved SS shell in the shape of a good abalone blister pearl. It is as beautiful as the best SS pearl. Only the fact you can see it was carved into that shape, gives it away on close inspection.