jewelry in auctions is a whole new world to me. would love to spend more time and study.This is such great topic and I debate this with my jeweler friends that after a certain point what retains value for the long term. I think personally it’s diamonds but these are difficult to convert if your not in the business. However when one thinks in terms of assets to be passed down then that an entirely different ballgame. Also I struggle with wanting jewelry to be wearable. That definitely makes difference when you talking branded pieces vs larger diamond pieces. My jeweler has some insanely large carat tennis bracelets that I tried each stone was at least .50 points. They were beautiful if I was going to a gala every night. Great heirloom pieces yes but from wearable standpoint not so great.
I agree with all you've said.