Diameter I don't have, but the weight is 3.55 grams. I did think it seemed a little light; but still within an acceptable weight range for ummayad gold dinar.
For me it's a counterfeited coin.
Too light to be an umayyad dinar, some letters are missing, some parts of the margin are inverted and I'm not even sure what they tried to write at some others.
I barely read something that looks like 101 AH at the end of the margin too, but the die they seem to imitate look more than the early coins of Hisham (105-106 AH).
Citeer: "Cycnos"For me it's a counterfeited coin.
Too light to be an umayyad dinar, some letters are missing, some parts of the margin are inverted and I'm not even sure what they tried to write at some others.
I barely read something that looks like 101 AH at the end of the margin too, but the die they seem to imitate look more than the early coins of Hisham (105-106 AH).
I agree with Cycnos
letters are missing and the weight is low.
I checked and in fact on the date 101 the suffix "wa" is missing: