John Hardy Naga 18K Gold and Sterling Silver Batu Square Sky Blue Topaz Ring

Start off your one-of-a-kind engagement ring or sparkling pendant by selecting your very own unique diamond. This round, brilliant-cut loose diamond (1.00 ct. t.w.) comes with a GIA diamond certification, and will add a dose of spectacular shine to your personalized piece of jewelry. Approximate diameter: 6.40 mm.

Faceted semi-precious stones mingle with textured 18K yellow gold beads on this long necklace from the Marco Bicego Jaipur collection.

John Hardy's mystical Naga Batu ring glows with ruby eyes and a faceted hematite stone.

Take your jewel box in a retro direction with Kenneth Jay Lane's enamel and gold-plated earrings. With a sleek, '60's inspired look, these beans lend looks a mod glamour.