Inspired by estate jewelry and Victorian symbolism, the pieces in jewelry designer Lisa Salzer's Lulu Frost collection feature a mash-up of vintage and modern influences that make for retro-chic designs. Crafted of 14k gold, the numbers on these rings are modeled after those found on New York's Plaza Hotel room doors. We like to wear them stacked to create meaningful combinations, commemorate special dates and keep lucky numbers close at hand. Each piece is made to order, so yours will truly be yours alone. 14k gold. USA.