Engagement is a happy thing. A festive gift is like a pair of lovely genuine teddy bears, or a more distinctive crystal engraved piano music box. You can engrave their wedding photos in the crystal, which also symbolizes the sweetness and permanence of their love.
If you don't know what gift to give, you can talk to other colleagues to see what gifts they give to the newlyweds. You can buy something similar. It's also good to give some simple and affordable small appliances, such as bionic table lamps, dishwashers, and air purifiers. These are all good gifts. In addition, the air in their new house is not very good, so giving an air purifier is also a good gift.
A gift is a must, between 200 and 500 yuan. The small gifts don't have to be too expensive, as long as they are meaningful and have good meanings, such as cute couple mobile phone pendants, or more meaningful silver dishes and chopsticks, etc. I believe they will be very happy to receive your blessings.