0.054ct means that this diamond is only 5.4 cents in size, which is too small to be considered as a "broken diamond". The price of a diamond of this size per carat (1ct) is only about 3,000, and the average value of 0.054ct is not as good as that of 200 yuan. So the value of this ring is basically pt950, you can calculate it according to the weight (the gold price of pt950 can be directly asked in the store). Basically, it doesn't take up weight, so it's enough to directly multiply the price of gold by the weight, plus +200 diamond money (200 is definitely too much) and processing fee (200).