How to Identify the Canadian Gold Maple Leaf (1 oz)
How to identify the 1 oz Canadian Gold Maple Leaf by its .9999 fine gold purity, single maple leaf reverse, monarch obverse, and post-2013 security features.
Read the full Canadian Gold Maple Leaf (1 oz) encyclopedia entry →
What It Is
The Gold Maple Leaf is Canada's official gold bullion coin, first issued in 1979 by the Royal Canadian Mint. It was historically notable for being struck in .9999 fine gold, a four-nines purity that set a new benchmark among bullion coins worldwide.
Obverse Design & Inscriptions
The obverse carries a portrait of the reigning monarch: Queen Elizabeth II for most of the coin's history, with the portrait periodically updated, and King Charles III on issues from 2024 onward. The legend includes the monarch's name, "CANADA," and the year.
Reverse Design & Inscriptions
The reverse, designed by Walter Ott, shows a single detailed maple leaf centered on the coin, along with ".9999 FINE GOLD" and the face value "50 DOLLARS."
Size, Weight, Metal, and Edge
The 1 oz coin measures 30mm in diameter and weighs 31.103 grams (one troy ounce) of .9999 fine, 24-karat gold, with a reeded edge.
Mint Marks & Security Features
Since 2013, the Royal Canadian Mint has added radial security lines, a fine textured pattern in the background of the reverse field, along with a micro-engraved laser mark near the rim, a tiny maple leaf containing a numeral that changes by year and is only clearly visible under magnification.
Telling It Apart From Similar Coins
Check for the radial line pattern and micro-engraved mark on any coin dated 2013 or later; their absence on a coin claiming that date is a warning sign. Weight and diameter should match the stated bullion specification exactly, since the coin's value is tied directly to its precise gold content.
Judging Condition & Grade
Bullion coins are valued mainly for their gold content rather than numismatic grade, but a genuine coin should show a sharp, well-defined strike. Because pure gold is a soft metal, light bag marks or handling scuffs are normal even on new coins and do not indicate a problem.
Authenticity Red Flags
Watch for incorrect diameter, thickness, or weight, missing or poorly executed radial lines and micro-laser mark on post-2013 coins, a color that looks too pale or has any silvery tint, and any coin that fails a simple weight-and-dimension check, a reliable first screen against filled or plated fakes.
Frequently asked questions
What purity is the Canadian Gold Maple Leaf?
It is struck in .9999 fine gold, commonly called four-nines purity, one of the highest standards used in bullion coinage.
How can I check a post-2013 Maple Leaf for authenticity?
Look for fine radial security lines in the background of the reverse and a tiny micro-engraved maple leaf with a numeral near the rim, both introduced starting with 2013-dated coins.
Does the coin's weight or diameter ever change?
For the 1 oz version, no — it is always 31.103 grams and 30mm in diameter, so any deviation from these figures is an immediate red flag.
Why does the portrait on the coin sometimes look different?
The reigning monarch's official portrait has been updated periodically over the decades, and coins from 2024 onward feature King Charles III instead of Queen Elizabeth II.