Sterling and Turquoise band ring/925CFJTHAI marking. Size 5

Sterling and what I believe to be turquoise (I am not certain of this) lovely band ring. The asymmetrical flat inlay of the turquoise is very pretty. The band does taper down in the back for comfort. Marked 925CFJTHAI (made in Thailand). In lovey condition! Size 5 Band front width is 3/4” with the back tapering to 1/4”