What is the best diamond cut for a ring?

There is no single best diamond cut for a ring. Any type of cut can be visually appealing, so which one you choose is a matter of personal preference. Round-cut rings are popular choices because they showcase the sparkle of diamonds and have a timeless shape. Other cuts that maximize sparkle include the princess, oval, pear and marquise cuts. Some things to look out for when shopping for gemstones are extinctions, which are dark spots on the stone, and windows, which are see-through areas created during the cutting process. These spots reduce the brilliance of a gemstone. Find a large selection of diamond rings on 1stDibs.