This is a blazing ruby red rubellite--exactly why these tourmalines are in a class by themselves among the rainbow shades of tourmaline. It is just under 5 carats; the face measures 7/8 by 1/2" across the finger. The ring size is 8. The back of the shank is 1/4" top to bottom. The design includes a comfortable fit. When you wear this ring, the sun shines right through it creating hot pink splotches on your finger (well, not rash-like) :) It is stunning. Please get it appraised; you will be pleased. Large red rubellites do not turn up at chain stores. It is set in 18 karat white gold, marked 750.