Are these real diamonds and real gold?

Yes. They are 18k yellow gold with genuine diamonds, about 0.05 carat in total across the pair. That is a very small stone weight, so expect a soft glint rather than a bright flash.

Are they suitable for a child?

The Baby line is designed small and light, which is why it is often bought for children and christenings. Check the backing style, since small screw backs hold better on young wearers than push backs.

How big are the diamonds?

About 0.05 carat total for the pair, so roughly 0.025 carat per earring. At that size the setting and gold do most of the visual work.

Can I wear them every day?

Yes, 18k gold is durable enough for daily wear. Small studs like these are easy to catch on clothing and hair, so check the backs regularly.

Do they come with a certificate?

Diamond studs at this size usually ship with the brand's own packaging and paperwork rather than an independent grading report. Confirm the contents with the seller if a certificate matters to you.