The Royal Canadian Mint has produced diamond-set bullion and collector pieces since the early 2000s, but embedding five Ideal Cut diamonds — a cut standard developed by Marcel Tolkowsky in 1919 specifically to maximize light return through precise angular geometry — into a 24-karat mount on a .9999 gold coin pushes the format into jeweler's territory rather than numismatic. Tolkowsky's proportions remain the benchmark against which modern diamond cutting is still measured.
The Royal Canadian Mint has produced diamond-set bullion and collector pieces since the early 2000s, but embedding five Ideal Cut diamonds — a cut standard developed by Marcel Tolkowsky in 1919 specifically to maximize light return through precise angular geometry — into a 24-karat mount on a .9999 gold coin pushes the format into jeweler's territory rather than numismatic. Tolkowsky's proportions remain the benchmark against which modern diamond cutting is still measured.