6 (SIX) Agate Coaster - Teal Colored Agate Coasters Rock Paradise COA (AM9B2) This listing is for 6 (SIX) Agate Coaster - Teal Colored Agate Coasters Rock Paradise COA (CSTR-01) STOCK PHOTO. Each coaster will vary slightly in size and characteristics. Measures approx. 3" x 5.5" Comes with rubber stoppers on one side to prevent table damage. This agate is from Brazil, and each agate that we sell is hand cut and polished. Each stone is hand selected for its natural beauty Wonderful piece to display any where in your home or office. Makes a lovely gift! Rock Paradise Exclusive