Does this product label say whether the necklace is solid gold?

How to say “Does this product label say whether the necklace is solid gold?” in Japanese

In Japanese

この商品(しょうひん)ラベルに、ネックレスが金無垢(きんむく)かどうか書(か)いてある？

Kono shōhin raberu ni, nekkuresu ga kinmuku ka dō ka kaite aru?

Does this product label say whether the necklace is solid gold? in other languages