3 New Gem Jars Gemstone Display For Jewelry Showcases & Countertops This is a new set of 3 gemstone display tray inserts This insert contains 15 removable clear plastic round jars These will hold all of your loose stones, beads and coins Each gem jar comes with a black insert pad inside and lid The inside diameter of each gem jar measures approximately 1" (25 mm) Each insert measures approximately 7 3/4" x 4 1/4" x 3/4" (197 x 108 x 19 mm) It is recommended that this be used with a display tray