1，F: 10； A: It symbolizes the perfection of love; B: Your girlfriend must be very moved. She chose this diamond as a symbol of your whole-hearted love for her.

2.f: 13； A: Thirteen symbolizes a lifetime; B: It represents your lifelong love for your girlfriend.

3.f: 25 points; A: 0.25 carat is "520", which means I love you; B: It means a lot to your girlfriend and can help you express your love silently.

Precautions for diamond ring

The first thing to look at when choosing a ring is the material: when choosing a diamond ring, we should not only pay attention to the quality of the diamond itself, but also strictly control it according to 4C standard, and pay attention to the choice of the material of the ring. The common materials of ring support are K gold, platinum and pure gold. Generally speaking, the diamond ring with platinum diamonds is a perfect match, but the price is more expensive.

Pay attention to quality. What you need to know when choosing a diamond ring is that the better the quality of the diamond, the brighter it will be. You should try to choose a diamond with higher quality. The quality of the ring support mainly depends on whether the surface is smooth or not, whether burrs appear in the manufacturing process and other details.