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In the world, ทรายแก้ว (Saikaew , Saikeo , Saikaeo ) is a very rare largely feminine, but seldom masculine forename. The first name ทรายแก้ว is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare dominantly girly, but infrequently masculine name. More frequently, ทรายแก้ว is the last name as well as the forename.