To the OP, ask your valuer (not evaluator, is that a Canadian term?) to change his mark-up for you & to reprint all your Valuations out with the higher price.

At a quick glance, the valued prices are too low. And you make too much of a fuss about how he's GIA trained & how a 1 carat Tennis Bracelet would never be $5000, etc. Who says it can't be 5K? If there's enough gold in it, it can be a lot higher.

And did it not occur to you that the average buyer wants the Valuation as high as possible because when they buy something, they want the illusion of the best deal. i.e. the more saving, the bigger bargain.

With estate & vintage pieces of jewellery, customers in Oz are used to seeing this stuff marked up. Some of the prices asked for in Antique shops is unreal. You are not helping yourself by trying to downgrade the valuation of your merchandise. It isn't as if you are trying to sell it for that.

Your valuer only needs to enter the new price or the mark-up he calculates his final price on into his saved valuations. He may charge want to you for some materials but it is no big deal for him if he wants to keep your business.

And you can save a lot of the wording in your listing, simpler & clearer is the way to go in my opinion. Too many people just won't read a long listing. Especially when they are browsing on their phone. I get asked all the time about stuff that is there in my listing.

I am not saying this will bring your business back, we are all suffering, including me. But it is a start. The other obvious point is you lack a critical mass of stock but if it has all stopped, I guess more won't help. Good luck with it.