Here is the policy:

In order to list items in the Fine Jewellery category, both the setting and the stones (if any) must meet the following criteria:

• The setting must be a solid precious metal such as gold of 9 karats or higher (10 karats or higher if traded internationally), silver of 925 parts per 1000 pure silver or above, or platinum group metals of 850 parts per 1000 pure platinum or above

• The setting must not be plated or filled metal

• All stones in the jewellery must have the optical, physical, and chemical properties of the natural stones

• Any pearls in the setting are naturally formed or cultured

You will need to list an item in the Fashion Jewellery category if:

• The setting is solid precious metal, but the stones are manufactured

• The stones are natural, but the setting is plated or filled metal

• The main stone is natural, but the accent stones are manufactured

• The main stone is manufactured, but the accent stones are natural