When you are looking to buy a ring for your loved one, there are a number of factors that will determine your purchase alongside the cost of good quality ring insurance. When you are looking to buy a diamond ring, for example, you should consider the four Cs of cut, colour, clarity and carat. The cut is the only characteristic of a diamond that is not influenced by nature, meaning that you should look out for errors and bad practices that compromise a diamond's defining sparkle.