Surname แก้วเพชรสุวรรณ (แก้วเพชรสุวรรณ, Kaewphetsuwan 
) , in the world, is an extremely rare cognomen. The surname แก้วเพชรสุวรรณ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kaewphetsuwan | Thailand |