Auckland Christchurch Wellington

New Zealand Coin, Banknote & Bullion Dealers Bought, Sold & Auctioned

Aventine Coins & Bullion serves collectors, estates, investors and institutions, connecting New Zealand to international markets.

  • Trade Me 3,600+ 100% Positive Feedback
  • NGC · PMG Authorized Dealer
  • SPINK New Zealand Agent

Where to begin

Three ways to work with us

Whether you're building a collection, realising an estate, or searching for a single rarity, Aventine can help you buy, sell and auction coins and banknotes.

Acquire

Buy Coins & Banknotes

Browse our latest coins and banknotes online, or contact our specialists for private offerings, rare items and collector want lists.

Shop Coins & Banknotes

Realise

Sell or Consign Coins & Banknotes

Choose from outright purchase, specialist brokerage or auction consignment for individual rarities, collections and estates.

Sell Coins & Banknotes

Bid

Coin & Bullion Auctions

Discover monthly auctions with bidding starting at just $1, a revolutionary 0% Buyer's Premium and no GST surcharges.

View Upcoming Auctions

Aventine+ Media

Coin Market Insights, Research & Collecting Opportunities

The official news channel of Aventine and Coin & Bullion Auctions — featuring numismatic market updates, auction highlights, research and collecting insights from New Zealand and beyond.

Explore Aventine+ Media

Auctions Sales Events Collecting

Stay Connected

Subscribe for upcoming coin and banknote auctions, exclusive sales, new arrivals, market updates and collecting opportunities.

Trusted Across New Zealand

Trusted by Collectors, Estates & Sellers

5.0 from 43 Google reviews

100% positive feedback from more than 3,600 transactions and responses on Trade Me.

Just added to your wishlist:
My Wishlist
You've just added this product to the cart:
Go to cart page