The ring is approximately a size 7. The face of the ring measures approximately 1/2 of an inch, or about 12.7 millimeters high, and projects about 1/4 of an inch, or approximately 6.35 millimeters, from the finger. The center stone measures just over roughly 5/16 of an inch, or about 8 millimeters, in diameter. The band narrows in back to about 1/8 of an inch, or approximately 3.17 millimeters, wide. (Included is a US Quarter in the photographs, for the measurement-challenged and ruler-averse.) The band is stamped inside, "925", and signed with a stamped maker's mark which appears to form the letters, "FS". Weight is approximately 8.28 grams, which includes the stone and enamel weight, of course.
This is a vintage piece, which has been worn and enjoyed. It will have surface scratches and dings in the silver from normal wear. The thick ring band is round and true. There is no visible damage to the stones, and none missing. Hand polished, but there may still be areas of missed tarnish. No access to clean the back of the center stone, so it does still have some cloudy residue in the very center, visible with a 10x loupe.
A very striking, beautiful, and stylish vintage Sterling silver, rich blue enamel. and cz ring. Chunky, but sleek and feminine, with lots of sparkle and fantastic color. A showstopper.