Dr. Monzer Kahf, a prominent Muslim economist and counselor, states: “Only the person who owns Zakatable item is the one who is required to pay its Zakah. A husband is not required to pay Zakah due on his wife’s jewelry regardless of who gave it to her, parents, husband, others, or from inheritance, own income, etc. If a husband decides to pay on behalf of his wife, this is considered a gift to her and certainly he may volunteer to pay it.
Moreover, two conditions must be satisfied together for jewelry to be exempted from Zakah: it must be within reasonable limits, when reviewed in comparison to the woman’s peers and must be reasonably dedicated to be used for whatever they are for. This does not mean daily use, it means normal use for what they are to be used for. If a woman has a $10,000 diamond necklace its normal use is in wedding occasions and normally at home in the family.”