Dear Sir/Madam, I'm looking for products with the following specifications: - Synthetic spinell faceting rough - Gemstone Type : synthetic spinell - Gemstone Shape : rough, complete boulle - Gemstone Material : faceting grade rough - Optical Special Effects : any colour, which colours are available,. are the pieces coloured though out or just on the outside - Average diameter of the boulles I would like to buy approximately one kilogramm of mixed coloured synthetic spinell rough of faceting grade quality. Show More