Timely Diamonds and Gemstones templates contain 278 sizes of gemstones including marquise, triangle, square, heart, round, oval, pear, and rectangle shapes. Size range: 3mm to 15mm. Plastic template approx. size: 6.4375" x 9.875" x .020". SET OF 2. Timely T-777-1 and T-777-2 diamonds and gemstones stencils are made in the USA.