At Mass Milano, the selection of materials becomes a decisive factor at the time of creation: all diamonds are VS1 purity, and color E (colorless), a very unusual color in commercial channels selling diamonds. We take these extra measures to ensure that you receive the highest quality diamonds possible at the most affordable prices by collecting directly by hand from diamond cutters. Mass Milano has a zero tolerance policy towards the conflict diamonds. Due to the low carat weight, our diamonds do not require a GIA certificate. Usually only the large central diamond of an engagement ring or any special request is certified. All Mass Milano loose diamonds have been analyzed and classified for quality by our expert experts.