INCLUSION

AN INCLUSION IS A PARTICLE OF FOREIGN MATTER FOUND WITHIN A GEMSTONE. INCLUSIONS CAN BE ANOTHER MINERAL, A LIQUID OR A GAS. INCLUSIONS DECREASE THE VALUE OF A DIAMOND WHEN VISIBLE WITH A 10X LOUPE, BUT ARE A MEANS OF IDENTIFICATION IN RUBY, SAPPHIRE AND EMERALD IN ORDER TO SEPARATE SYNTHETIC STONES FROM NATURAL ONES.