This is a classic, man's ring. The stone is a natural black star sapphire, set in 18KT gold. purchased this ring in Bangkok, Thailand in 1970-1971.
Ring size: 9 1/4 13.79 grams solid 18KT gold 10x8.5 mm oval black sapphire (i guess it's about 2.5 to 3.5 carat)
Stone is slightly loose (can easily be tightened)
does anyone have any idea how much this ring is worth?