The 4Cs—color, clarity, cut and carat weight—are the globally accepted standards for assessing the quality of a diamond. A certificate makes the authenticity of a diamond’s quality. A certified stone gives an accurate assessment of its cut, color, clarity, and carat weight following the International Standard. We consistently set high standards for customers about diamonds purchased from us. Certified diamonds are diamonds that have been graded by a gem laboratory based on their “4 C” attributes. When shopping for a diamond, it is good to purchase a certified diamond to ensure the quality of the stone.