Vintage 10k ring with two missing side stones. I am not sure of the main stone. Could be emerald or glass or another stone? All prong are present and good. Stamped “10k” & “REL.” size 4.5. Weighs 1.9g. I tried measuring the main stone. See pictures. 3.9mm x 2.1mm. Missing the two side stones. Used as is. Unknown stone. I do not accept returns or refund.