Kim Kardashian didn’t just celebrate her 33rd birthday last night, she also celebrated the news she’s engaged to Kanye West. Kim wasted no time in showing off her huge rock, which apparently weighs 15 carats and was designed by Lorraine Schwartz. The huge diamond ring reportedly cost around $1.6 million. Although Kim’s previous emerald cut diamond engagement ring from basket ball player Kris Humphries has a slightly higher carat weight, Kanye has gone for quality over quantity for with Kim’s new ring which has the highest possible clarity, colour and cut grade. In fact the diamond is completely flawless, and graded the best diamond there is at type 2A. The cut of the stone has been described as “a perfect cushion-cut diamond” Minutes after the proposal at the baseball ground, Kim posted this picture on Instigram showing off her fabulous ring and marriage message. Kim and Kanye have been together for over a year now, and as you already know, have baby North West Together.