Is zakat obligatory on two gold earrings and two gold rings, kept for future use (as part of a trousseau) and never worn, with the concern that this might fall under the hoarding of gold and silver mentioned in the Quran?

Zakat is not obligatory on jewelry purchased for personal use according to the majority of scholars. However, it becomes obligatory if it is purchased for storage or sale. For Zakat to be obligatory, the weight of the jewelry must reach the prescribed nisab (approximately 85 grams of pure gold), and the due Zakat is one-quarter of one-tenth (2.5%) of the gold's value for each year that has passed without its payment.