Studio Silver 18k Gold over Sterling Silver Earrings, Square Hammered Stud Earrings

Timeless elegance in a polished pearl strand. Belle de Mer necklace features AA Akoya cultured pearls (6-1/2-7 mm) set in 14k gold. Approximate length: 18 inches.

Show off symbolic style. This unique men's pendant features a three row cross on a matching bead chain. Crafted in stainless steel. Approximate length: 24 inches. Approximate drop width: 1-1/2 inches. Approximate drop length: 2 inches.

Soar to new heights. This sterling silver necklace and pendant becomes truly radiant with the addition of round-cut diamonds (1/10 ct. t.w.) Approximate length: 18 inches. Approximate drop: 3/4 inch.

Build imaginative machines in this creative and addictively fun brainteaser

Turn cranks, rotate gears, pull levers, and more to build unique contraptions

Solve more than 200 challenging puzzles; put your machines to work

Physics engine with air-pressure, electricity, gravity, and particle effects

Experiment with gears, robots, explosives, and more in your own virtual lab