How Wholesale Diamond & Gemstone Buying Works in Hong Kong: A Jeweller's Guide
Why Hong Kong has no sales tax, no import duty, and a Kimberley Process registration system for rough stones -- the trade mechanics behind Asia's diamond hub.
Hong Kong became Asia's dominant diamond trading hub for a specific structural reason: it has almost none of the tax and tariff friction most other markets carry. See Wholesale vs retail: how the gem trade actually prices for how Chaos defines a genuine wholesale price; this piece covers what makes Hong Kong different.
No sales tax, no VAT, no GST
Hong Kong has no general sales tax, VAT or GST of any kind on goods, including diamonds and gemstones. Combined with its free-port status — essentially no import tariffs on the vast majority of goods passing through — this is the core reason international dealers have traded through Hong Kong since diamond wholesalers first set up there in the 1960s, when import restrictions elsewhere in Asia pushed trade toward the territory.
Rough diamonds need trader registration and a KP certificate
Hong Kong implements the Kimberley Process through its own ordinance (Cap. 60A): anyone importing, exporting, buying or selling rough diamonds must register as a rough diamond trader, and both imports and exports require a Kimberley Process certificate. Trade is restricted to other KP-participating countries. Once a diamond is cut and polished, it sits outside this specific registration and certificate regime.
A long-standing regional trading base
The Diamond Importers Association was established in Hong Kong in 1959, and the territory's bourse infrastructure has operated continuously since, surviving the 1997 handover without a change to its trading fundamentals. Hong Kong remains one of the most significant diamond and coloured-stone trading centres in the Asia-Pacific region, and hosts one of the world's largest annual jewellery trade fairs.
What this means for a jeweller sourcing internationally
The absence of sales tax and import duty is a real structural advantage for a Hong Kong-based dealer's pricing — it's not a loophole, it's the tax base the whole market is built on. It doesn't change what you should verify on the stone itself: see How to buy a loose diamond online without getting lost for that.
FAQ
Is there sales tax or VAT on diamonds bought in Hong Kong?
No — Hong Kong has no general sales tax, VAT or GST, and is a free port with no import tariffs on most goods, including diamonds and gemstones.
Do I need a Kimberley Process certificate for a polished diamond from Hong Kong?
No — the KP certificate and trader-registration requirements under Hong Kong's own ordinance apply to rough diamonds. A cut and polished stone is covered by its grading certificate instead.
Why did Hong Kong become a diamond trading hub in the first place?
Postwar import restrictions across much of Asia pushed trade toward Hong Kong's duty-free port; the Diamond Importers Association was founded there in 1959, and the trading infrastructure built up since has made it one of the region's dominant hubs.
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Wholesale vs retail: how the gem trade actually prices
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