Around 2000-5000. Diamond rings don't have to be bought in a physical store, but they can also be bought online. There should be no problem with the quality of websites like Diamond Bird and Nine Diamonds. Just ask the 4C of a diamond. If you want to buy it on Taobao, you can find the flagship store of Cooper Jewelry, which is the flagship store of Hong Kong Cooper Jewelry Group. They have stores all over the world, with guaranteed products and beautiful designs. Their store in Beijing opened these days, and the cost performance is quite high. You can call 0 10-65330200.