Emerald Diamond Gold Jewellery Fashion Ring.

Emerald Diamond Gold Jewellery Fashion Ring.

By Stone.

 Acidic conditions are essential to prevent the chromium (which is used as the colorant) from precipitating. Also, it is important that the silicon-containing nutrient be kept away from the other ingredients to prevent nucleation and confine growth to the seed crystals. Growth occurs by a diffusion-reaction process, assisted by convection.