All of our yellow diamonds are Natural color. Clarity is SI1 or better. Most styles are manufactured in our facilities in Los Angeles and can Be customized to accommodate a wide range of center stones sizes. Melee and other side stones are VS1-SI1 in clarity, G-H in color. Gem Lab appraisal reports are available for all center stones.Any piece is available with white diamond centers instead of yellow. All pieces are 18 karat gold. We also offer Loose yellow diamonds from one to ten carats, with GIA certificates.