Vermeil (typically pronounced vehr-may, it's French!) jewelry is made from 925 sterling silver as its base material, which is a standard material used in high quality jewelry, coated in gold that is at least 10k and is at least 2.5 microns thick.
Gold-plated jewelry on the other hand refers to jewelry that has gold plating at least 0.5 microns thick, and it does not require sterling silver to be used as the base material.
Therefore vermeil is the superior to gold-plated jewelry, and if you've got some spare cash and want to truly level up your jewelry game, this is the way to go!
Please note, the vermeil option is made to order can take up to 4-5 weeks for delivery.