In domestic cassiterite is a not yet into the mainstream of new breed of gems, in foreign countries has been very popular, it has a higher refractive index than the diamond, eye-catching light color and strong color of fire, all the doomed it is well deserved high-end gems, now because I know it is not much, the price is relatively cheap, great appreciation potential.

We in the gem chooses the material carefully

Gem grinding studio we

We collect gem material in the mine, the first hand source.