Natural Agate Coaster Cup Mat Brown Colour 3.5 Inches - 4 Inches Coasterstone Crystal Gemstone Slices Beverage Coasters for Drinks Gift Set of 4 with Feet Teal Brown Brilliant Brazilian Agate Coaster. Random Pattern Colors Vary. Hand Chosen for Quality, Pattern, Symmetry and Color Definition, Polished Both Sides. Makes a Great Display Piece Unique Decorative Item for Entertaining. Premium Quality, Polished One-of-a-Kind Natural Brazilian Agate Slices. Great Gift!