1. Flowers: Flowers have always been a classic gift to express love. Choose her favorite flowers and give them to her with beautiful cards.

2. Chocolate: Chocolate is considered as one of the romantic foods. Sending an exquisite chocolate gift box will definitely bring her a wonderful surprise.

3. Handmade DIY gifts: Handmade gifts are very intimate, such as handwritten love letters and creative DIY commemorative books.

4. Perfume: Perfume is a high-end gift and a good choice. Choose the brand and taste she likes and give it to her.

5. Jewelry: Jewelry is classic and lasting, especially rings or necklaces, which can keep each other's promises.

6. Couple SPA: It is a special and intimate gift choice to go to the SPA to relax and enjoy a warm and romantic atmosphere.

What is the most appropriate gift to give needs to be comprehensively considered in combination with the hobbies, tastes and economic strength of both parties. However, here are some romantic and appropriate 520 gift recommendations:

1. Flowers: Flowers have always been a classic gift to express love. Choose her favorite flowers and give them to her with beautiful cards.

2. Chocolate: Chocolate is considered as one of the romantic foods. Sending an exquisite chocolate gift box will definitely bring her a wonderful surprise.

3. Handmade DIY gifts: Handmade gifts are very intimate, such as handwritten love letters and creative DIY commemorative books.

4. Perfume: Perfume is a high-end gift and a good choice. Choose the brand and taste she likes and give it to her.

5. Jewelry: Jewelry is classic and lasting, especially rings or necklaces, which can keep each other's promises.

6. Couple SPA: It is a special and intimate gift choice to go to the SPA to relax and enjoy a warm and romantic atmosphere.

In short, the gift of 520 needs to consider her preferences and characteristics. As long as you choose carefully, you will win her heart.