A name used to dub the highest gold money value . The word dinar is derived from the Greek Dinarius . The Arabs knew this mint through the Byzantines and had used them before and after Islam . Even the Prophet Mohamed , prayers and peace of God be upon him had approved its use . The word dinar was mentioned in the Qur'an in Surat Al-Imran , verse75, "Among the people of the Book is he who if you entrust him with a heap of gold , he will give it back to you .And among them is he who if you entrust him with a single Dinar , he will not give it back to you , unless you keep after him " God Almighty has spoken the truth .
The dinar is almost equal a 'whit' in weight . It was divided into twenty –four carat and the carat weight is 0.194 grams which is the average weight of a carob grain . After the monetary system and minting reform in the reign of Caliph Abdul Malik Ibn Marwan the dinar's legitimate weight became 4.25 grams ,since 77AH , which is the date of the oldest pure Arab dinar . The dinar weight has differed over the time .