I love being able to add this new diamond shape to the "small treasures" collection. Tourmilated quartz is just what it sounds like-tourmaline rutiles (lines) growing in quartz, each one a unique and natural work of art. Checkerboard facets add to the bold look. The stone is on a 16 inch 14 karat gold filled chain, adjustable up to 18 inches. Two inch extension and lobster claw clasp are also 14k gold filled.