With a 1oz gold coin costing several thousand New Zealand dollars, gold can feel out of reach. Fractional gold — bars and coins well under an ounce — is the industry's answer, and judging by traffic to our 1g Germania Mint bar and 5g Perth Mint Kangaroo bar, plenty of Kiwis are thinking about it. Here's the honest guide.
What counts as fractional gold?
Anything below one troy ounce: half and quarter-ounce coins, and gram-denominated bars — commonly 1g, 5g, 10g and 20g. Small minted bars usually come sealed in a tamper-evident assay card that certifies weight and purity (typically 999.9 fine), which doubles as protection and proof.
The trade-off you must understand: premium
Minting costs roughly the same whether the bar weighs 1 gram or 100 grams — so on small bars, that fixed cost is spread over very little metal. As a percentage, premiums on fractional gold are much higher than on a full ounce. A 1g bar might cost 20–40% over its melt value; a 1oz coin might cost 3–6% over spot. Per gram of actual gold, the ounce is always the better deal. (New to premiums? Start with What Is the Premium Over Spot Price?)
That sounds like a knock-down argument against small bars. It isn't — it's just the honest price of the benefits below. But go in knowing the maths.
When fractional gold genuinely makes sense
- Getting started now instead of someday. If saving several thousand dollars for an ounce means you'd wait years, a 5g bar puts real gold in your hand this week. Owning some gold beats planning to own gold. It also pairs naturally with a dollar-cost averaging approach.
- Gifts that last. A sealed 1g or 5g gold bar is a spectacular birthday, graduation or new-baby gift — small, permanent, and unforgettable in a way a bank transfer never is.
- Flexibility when selling. Gold isn't divisible after the fact — you can't sell a corner of a 1oz coin. Holding some of your gold in small units means you can liquidate $500 worth without parting with $7,000 worth.
- Recognised mints keep resale easy. Bars from names like the Perth Mint and Germania Mint, sealed in assay cards, are straightforward for any dealer to buy back.
When to size up instead
If you're investing a larger lump sum purely for wealth storage, buy the biggest units your budget and selling plans allow — 1oz coins like the Gold Britannia, Maple Leaf or American Buffalo — and let the lower percentage premium work for you. Many buyers land on a sensible hybrid: ounces for the core holding, a handful of grams for flexibility and gifts.
Quick answers
Is fractional gold GST-free in NZ? Investment-grade fine gold (99.5%+) generally qualifies as exempt fine metal regardless of size — see our GST guide and confirm with your accountant.
Is a 1g bar hard to sell? No — recognised-mint bars in sealed cards are easy to sell, though expect the buyback price to reflect the premium structure.
Bar or fractional coin? Minted bars in assay cards usually offer the lower premium at gram sizes; fractional sovereign coins carry more brand cachet. Either works.
This article is general information, not financial advice. Precious metals prices rise and fall; only invest what suits your circumstances.