'Ugly' is a judgement, and some people believe that a raw diamond is quite beautiful.
Yes. Exceptions are gem-quality diamonds that have been cut and polished so that there are no flaws. These diamonds are rated as 'flawless'.
Dust from diamonds is generated when diamonds are cut and polished.
Gem-quality diamonds -- only about 20% of all diamonds mined -- are cut and polished to reflect and refract light, which gives them sparkle and shine.
Diamonds are rare and when cut and polished are extremely beautiful.
Surat is the diamond capital of the world. About 95% of the world's diamonds are cut and polished in Surat at one point in their existence. Any and all types of diamonds go to Surat.
Yes.
Raw diamonds are found in the earth; cut and polished diamonds are available in jewelery stores; industrial diamonds can be purchased from an industrial diamond broker.
Arizona is not known for its raw diamonds. However, you can purchase cut and polished diamonds in most any jewelery story in that state.
Jewelers purchase faceted and polished diamonds from diamond brokers, depending on the quality of diamonds the jeweler wants for the jewelery it manufactures.
Once mined, all gem-quality diamonds are processed -- cut and polished -- by hand.
Raw diamonds are not naturally smooth, but may have smooth faces: a polished diamond gemstone is smooth.
This is strictly a matter of personal taste.