Other Blog. Emerald Emerald is crystal mineral in Beryl family, consisting of Chromium (Cr) and resulting in white. Premium emerald must be transparent with even color over the grain. Black Diamond Black diamond is the diamond with more carbon content than diamond in other colors and maximum hardiness and used as diamond for general diamond cutting. Solitaire Solitaire is the ring with single diamond in the setting and represents symbol of “single love". It is popular for use in engagement.
