In essence there are diamonds that have been purchased from rebel movements, terrorists or thieves. They will clean your jewelry efficiently & it may be the right solution if you don't mind paying or really don't want to deal with it. Many cleaning solutions are sold in regular store, you just put the jewelry in the little container filled with a special cleaning solution, close it up & shake it a bit.
Explanation of Cut, Color and Clarity of This Diamond
Cut Quality Diamonds with good cut still have very good proportions and will reflect large percentage of incoming light. Good cut diamonds still have excellent brilliance and fire. This grade represents an excellent balance between quality and price.
Color E color diamonds are virtually colorless. E color grade is very rare. The naked eye will not detect any presence of color. E color grade is indistinguishable from D without instrumentation.
Clarity SI1 clarity diamonds are slightly included. SI1 diamonds have some inclusions visible under 10x magnification but not easily visible to the naked eye. A diamond with this grade of clarity is an excellent choice for someone on a limited budget.