Jewellery is the ornaments people wear made of precious materials. Rings, necklaces, bracelets, earrings.
It is a mass noun, so you own jewellery rather than jewelleries, and a single item is a piece of jewellery. British English uses this spelling and American English writes jewelry with one fewer syllable, which changes the pronunciation as well. Costume jewellery is the inexpensive kind made to look precious. The trade is a jeweller, and the raw materials are gold, silver and gemstones.
1nounjewelleryDecorative items worn on the body, made from precious metals and stones.
“She kept her jewellery in a wooden box.”
Also accepted in games: jewelry
Old French
juelerye
Middle English
juelrye
English, today
jewellery
Middle English juelrye, from Old French juelerye, equivalent to jewel + -ery.
Etymology from Wiktionary, CC BY-SA