Carefully Selected Diamonds Diamond Channel experts select only the finest diamonds from a wide assortment of rough diamonds - all ethically sourced from reputable mines. Then we cut the diamonds with the most advanced polishing technology to bring out the most brilliance and fire of each stone. | Lab Certified Once the diamonds are polished, they are examined and graded by one of the leading independent labs, and the Four Cs of each diamond are recorded and certified - so you can be sure of exactly what you are buying. Comment: All Items are Independently Certified by the American Gemological Institute and have been certified by the year 2019 or sooner | Mounted in Fine Jewelry Diamond Channel jewelry is manufactured and mounted in the USA by experienced craftsmen who match the diamonds and then use microscopes to set them in beautiful jewelry. | Rigorously Inspected Our 3-step inspection process includes gold inspection, setting inspection and final jewelry inspection once the piece is completed. Diamond Channel quality control makes sure that your jewelry reaches you in perfect condition. |