It's best to give something thoughtful or a little expensive as a gift, so as to show that you value her.
I can give you several options:
rose
Roses are the most traditional and popular gifts. Sending flowers has become the custom of Valentine's Day. Roses of different colors represent different meanings. Red roses are a symbol of faithful love, pink roses are mostly used for first love, and white roses represent innocent and pure love.
Different numbers of roses represent different meanings. Generally, we send 1 1 33,99 roses on Tanabata, which means single-minded, it runs in the family and everlasting.
Diamond rings, jewelry
Diamond ring will not change with the passage of time, representing the eternal and loyal feelings between people. Jewelry is generally more expensive, which can give people a feeling of attaching importance to her. The ring is a symbol of marriage, the necklace is a homonym of "falling in love", and the bracelet just wants to be tied tightly with the other party, so giving diamond jewelry can also represent a heart.
Digital product
Mobile phones and smart watches are common daily necessities, so on a festival like Qixi, can you give your partner a better hand? Machine or give each other a smart watch, which means always paying attention to each other, which means cherishing each other? Didi, giving a lover a watch means expecting someone you like to think of each other every day, and expecting their love to last forever? No change!