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01 — Acquire
Buy Coins & Banknotes
Browse our online shop, or contact us directly for private offerings and want lists.
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International Coin Dealers & Numismatic Auctions
Coins, banknotes & bullion — bought, sold & auctioned.
Founded in Auckland, Aventine is the choice of coin collectors, estates, investors and institutions — connecting New Zealand to the global markets.
- TradeMe 3,600+ 100% Positive Feedback
- NGC · PMG Authorised Dealer
- Spink New Zealand Agent
Where to begin
Three ways to work with Aventine
Whether you're building a collection, realising an estate, or chasing a single rarity — start here with us.
02 — Realise
Sell or Consign Coins
Outright purchase, brokerage, or auction consignment — the choice is yours.
Talk to a Specialist03 — Bid
Coin & Bullion Auctions
Monthly sales with bidding from $1. 0% Buyer's Premium. No GST Surcharges.
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Trusted across New Zealand
The choice of collectors and estates.
100% feedback rating with over 3,600 positive responses on Trade Me.
Aventine+ Media
Market Insights, Research & Collecting Opportunities
The official news channel of Aventine and Coin & Bullion Auctions — market updates, highlights, auction news and research from New Zealand and beyond.
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