This is an amazing platinum and 14k yellow gold engagement ring. The ring is centered with a sparkling old mine cut diamond that weighs approximately 1.55ct. The color of the diamond is K with VS1 clarity. The center diamond is accentuated by sapphire and diamond accents. The top of the ring measures 11mm by 12mm. The ring weighs 3.5 grams. The ring is size 6 3/4 but it can be resized.