This on is a beauty.. It is circa 1770 flat cut, close backed and foiled, garnet, with four pear shaped rose cut diamonds. The ring is crafted of unmarked but tested 18 carat gold, and is a size 7 and 3/4. It could be sized by a jeweler used to working with antique jewelry! It weighs 3.22 grams and it is in very good condition. The jeweled top of the ring measures a little over 1/2 inch North to South , and about the same East to West.