Jewelry makers have been showcasing the marine mollusk, and vintage sellers say they can’t keep them in stock.

Part of the semiprecious stone is to be used in 10 versions of the Bird on a Rock brooch, with another part of the stone to be left in a natural state and made into a tabletop ornament.

Citrine is a vibrant yellow variety of quartz is often called the "Merchant's Stone," as it is believed to attract wealth and ...