No zakat is obligatory on permissible jewellery.
Ibn Umar (G. p. H) said: "No zakat (is obligated) on jewellery,"
[Al-Darqutni, Vol. 2, page 109] because such jewellery is intended to beautify which is a permissible use.
If one inherits jewellery without being aware of that until a complete
term passes then zakat is obligated on them.
Similarly, if a piece of jewellery breaks, and one keeps it for its value, then zakat must be paid on it.
But if one keeps the broken piece with the intention of getting it fixed, then no zakat is obligatory on it no matter how long it takes to get it fixed.
Permitted jewellery is that which a woman is permitted to wear.
A woman is permitted to wear all types of gold and silver, like a bracelet, an anklet, or a ring (No zakat is obligated on such jewellery unless its amount exceeds that which is conventionally accepted as a reasonable amount of jewellery).
Also, it is permitted to wear clothes embellished with jewellery unless the amount of jewellery is too much.
A man is permitted to wear a silver ring, according to the custom of his equals.
He is also permitted to decorate some of his weapons, such as a
sword or a spear, with silver but it is prohibited to use much of it. Zakat is obligated on prohibited jewellery such as a bracelet or an anklet for men as well as gold or silver utensils or objects hung to veils and necklaces of women and children.
It is the weight of prohibited utensils that should be taken into account not their value, whereas it is the value of jewellery that should be taken into account not its weight.
If the jewellery can be divided, one should take out apiece equalling a quarter of one tenth (2. 5 (P. B. U. H)) and give it as zakat.
Jewellery should not be broken in order to give zakat out of it, nor
should a vessel, rather zakat can be paid out of some other gold. (pa:329 )