20% discount on all princess cuts Celebrate King's Day with a Princess To celebrate our King’s 51st birthday, we have a special offer for you. Up until April 30th, you get 20% off on all princess cut diamond jewelry. The princess cut is the second most popular diamond cut in the world. Therefore, we have a lot of diamond rings, earrings, bracelets, necklaces and loose diamonds with this particular cut. Below is a brief selection of some princess cut jewelry.