The ring is marked 18k and is solid yellow gold. It has also been tested. The ring weighs 12.2 grams. Set in the center is a round blue natural sapphire and is 8.2 mm in diameter. It has an approx weight of 1.50 cts. It is surrounded by baguette natural diamonds. The 41 diamonds have an approx total weight of 3.00 cts. They range from VS 2 to SI2 and H to I in color. The ring wears to a size 7.25 and can be resized.