Price listed is for two glass stones. These are 18mm by 13mm opaque chalk turquoise stones. They have smooth round tops and pointed backs. These are molded glass stones (as opposed to cut glass), so the size and shape will vary slightly with each stone. Some measure closer to 17/12mm, others closer to 19/14mm. We will do our best to match up the sizes on each lot, but if multiple lots are ordered, it will be the luck of the draw!!