It is 18k platinum, which is an alloy containing 75% gold and 25% other precious metals. Hard and malleable, it can be made into various mosaic processes and is not easy to deform. Generally used for setting precious jewelry.

D0.504 is the initial d of a diamond, and the main diamond is 0.504 carat, which is also 50.4 cents. It's already a good diamond, but the market price depends on the other 3C of the diamond, besides the weight, the certificate grade of color cut clarity and so on, and the weight of the ring. In addition, the rent and decoration of shopping malls are charged to consumers.

My friend customized a diamond ring the other day. His family specializes in making loose diamonds in office buildings. The price is particularly reasonable and the quality is good. You can go and see it and call it a beautiful diamond that loves her.