Beware of platinum rings with garbage diamonds. Don't be fooled. There are garbage diamonds in platinum. Garbage diamonds looks better in the white metals than in yellow gold. If a seller states that they will never put garbage diamonds in platinum they are telling a bold face out-right lie. If they can not tell you the color #1 nor the clarity #2 take my advice and leave it alone unless you are willing to run risk with your money. Watch out for estimates. They are most likely not in your favor.
Thank you and good day.