Roman Coin Gold Aureus

Need to see both sides of the coin

The sharp edges to this coin leave some doubt in my mind, which is uncharacteristic of the two aureii that I own, and all others that I have seen.

I do not doubt that it may be of high purity gold probably sourced from modern coin gold.

XRF testing should confirm if the coin is doubtful or not. The ancients were unable to refine out all of the trace elements, and so these are what you should be looking for in the gold alloy.
Modern coin gold alloys only have silver, or more commonly, copper, as the alloying metal, with no other elements.

A commercial gold bullion / scrap jewelry buyer usually has access to a held XRF instrument. They may charge a fee.

I note that you are in Canada.
Calgary Coins are a very well respected trader in ancient coins, and have the expertise needed to authenticate this item. They may also have access to XRF.
They would investigate for style, ask you about provenance, and check for similar items on their data base.

I have visited the Coins Medals Department of the British Museum, (decades ago, unfortunately), and have reviewed literally hundreds of Roman gold aureii - they probably have the biggest collection of them in the world.

A preliminary check for yourself may help, by a visit to the Vcoins and Wildwinds websites for visual comparison, looking especially in this particular case, at the edges of the aureii pictured.

to the community

We do need to see both sides of the piece.

First impression though is that it isn't genuine. The edge looks took thick and the overall appearance just just look right.