Gemstone and diamond drawing stencils contain 278 sizes of gemstones including marquise, triangle, square, heart, round, oval, pear, and rectangle shapes. Size range: 3mm to 15mm. Plastic gemstone drawing template approx. size: 6.4375" x 9.875" x .020". Set of 2 templates. Timely T-777-1 and T-777-2 diamond and gemstone drawing templates.