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4Cs

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.

Pink Sapphire

Pink Sapphire is the colored stone in Corundum family, with maximum hardness inferior to diamond, resulting in resistance to scratch.

Weight and Diameter of Round Brilliant Diamond

The weight and diameter of diamond are related and regarded as significant factors of diamond selection consideration.

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.

Akoya Pearl

Akoya Pearl is the Japanese pearl derived from culture in saline water and cultured from pearl oyster in the species of Pinctada Fucata Martensii

Solitaire

Solitaire is the ring with single diamond in the setting and represents symbol of “single love". It is popular for use in engagement.

Ruby

Ruby is the gemstone in the Corundum family with hardness inferior to diamond. It is popular for use in making jewelry with high commercial value.