300 Gem Jars Tray Black Insert Jewelry Display Gemstone The inside diameter of each gem jar measures approximately 1 1/8" Each tray measures approximately 14 3/4" x 8 1/4" x 1" (37 cm x 208 x 25 mm) These will hold all of your loose stones, beads and coins Each gem jar comes with a insert pad inside and lid This is a new set of 6 display trays and gem jar inserts