The Princess cut is the second most popular cut shape for diamonds. With more chevrons and precise symmetry, our signature Star Cross Princess Cut diamond simulant is able to return more light, and hence is full of fire and brilliance. Clarity Russian Hearts diamond simulants are created in a laboratory, under ideal conditions. There are no impurities such as trace minerals or black spot that could be found in real diamonds. Hence it is possible that our stones could exhibit more brilliance than a real diamond, because Russian Hearts stones are graded flawless internally and externally. Color Grade Russian Hearts diamond simulants are created to be a absolute colorless D, which is similar to top grade real diamonds. This is the most desirable color as it allows the most fire and sparkles.