Can anyhelpful Aussies (or anyone else for that matter) give me an idea of what percentage I need to calculate for a diamond ring and setting bought in the US and shipped to Melbourne. Your help would be much appreciated.
Dee is correct - it works out at about 16%, but it's a "staggered" amount..and
they also tax you on the shipping.
Basically, it's 10% GST plus 5% duty plus some processing fees.
Here's an example from Customs Au website that shows how to work
yours out more accurately:
Example 3: Import of goods (other than tobacco products or alcoholic beverages) valued above $1000AUD$
Customs value (Cval) 2000.00
Customs duty (Duty) @ 5% of Cval 100.00 (Payable)
International transport and insurance or postage (T&I) 150.00
Value of the Taxable Importation (VoTI) (Cval+Duty+T&I) 2250.00
Goods and Services Tax (GST) @ 10 per cent of the VoTI 225.00 (Payable)
Total payable Duty + GST 325.00
and here's the link if you'd like further info customs
ETA: the taxes are different if you're importing a setting without a stone in it, and vice versa (just in case). The example above would be for a finished ring.
hth!