And yet, NZ Post (Courier Post) carry gold bullion for businesses without any issue: "MyGold® offers fully insured overnight signature-required courier throughout New Zealand. Rural areas may take an extra day for delivery. Orders are shipped via Courier Post and are sent to the nearest depot for collection."
NZ Post cover lost items up to $250, NZ Couriers up to $500 and Aramex up to $2,000 if I read them correctly. So how do I ship a small item of jewellery worth much more than these limits, without losing bigtime when it gets lost in transit (which seems to happen all too often in my neck of the woods)?