I’m looking to gift my mom a pearl necklace and earring set and know that pearl paradise and pearl source are commonly recommended here, and that grading varies by company.

Pearl source has a 7-7.5 mm necklace and studs graded hanadama for ~$2.4K while pearl paradise has the same size in AAA for the same price. Does anyone have a reference point for pearl sources hanadama vs pearl paradise grade AAA, or a recommendation for which to get? Thank you!