This is an amazing platinum engagement ring by Simayof. The ring is centered with a vivid blue cushion cut Ceylon sapphire that weighs approximately 3.56ct. The sapphire is accentuated by sparkling emerald cut diamonds that weigh approximately 1.40ct. The color of these diamonds is G-H with VS1-VS2 clarity. The top of the ring measures 9.5mm by 16mm. The ring is size 6 but it can be resized. The ring is stamped PT950 Simayof.