Right now, it's not fashionable to match your earrings to your necklace. For example… pearl earrings and pearl necklace.
In fact, it's better to choose one or the other - great earrings or great necklace.
If you wearing a bold necklace AND earrings you run the risk of looking gouty.
And if you go too simple with both necklace and earrings… they won’t stand out at all.
Look at least 3 pairs of earrings or at least 3 necklaces before you make your decision if they will work together.