18K and 750 have the same meaning, and W/R may be the code name or abbreviation of the factory.

18D indicates that this is a luxurious ring with 18 small diamonds. You can check it yourself!

0. 10CT refers to this 18 diamond with a total weight of 10.

If it is an international brand, such as Cartier and Tiffany, it may be worth it.

If not, 2400 Hong Kong dollars is sky-high price!

Just saying, for reference only! Do not bear any legal responsibility!