This ring, 2 blue sapphire 2 ct each, natural stones (unheated untreated) 8 diamonds, 14kt yellow gold. Size 5, has a button on back to prevent turning. Sizeable.
Blue Kashmir is $2,500 per ct for 2ct stone. 3/4 inch
I bought this years ago. I think vintage 1960s. $10,000. I can't get to gemologist. This description is my best.
2nd ring is onyx with 2 diamonds bezel set, under .5ct each, 14kt yellow gold, about 4 gms. 1 inch approximately. Looks like evil eye. Onyx with small diamond, under .05 ct stone in white metal, rectangle or oval. may have .10ct, not usually bigger, 2 stones very rare design. $3,300