Amulet Tumbled Blue Lace Agate Crystals Good Luck Powers Gemstone Bracelet Best Amulets Collection. Amulet Tumbled Blue Lace Agate Crystals Good Luck Powers Lucky Charm Gemstone BraceletAmulet Tumbled Blue Lace Agate Crystals Good Luck Powers Gemstone Bracelet Each Gemstones Bead Size: Approximately 1/2 inch. Bracelet Size: Self Adjustable and would fit most size wrists. Each Bracelet is Naturally Unique and may have rough specks being made from semi precious gemstones. Comes with Branded Packaging