Program aims to educate young consumers about mined stones’ positive qualities.
Jewelry from the Wolf Family garnered $8 million against a high presale price of $6 million.
Signed jewels and white diamonds are some of the safer bets for collectors, insiders say.
Pre-owned timepieces are beating jewelry at auction and outselling hard-to-get newer models.
Stone shatters estimate at Heritage Auctions.
Hollywood double wore two of the pieces, gifted by Paul Newman, while trying to break the speed of sound on land.
Ring fetches more than $400,000 at Hong Kong auction.