Cuban Necklace 17"

18K Dubai Gold
Weight: 19.71g
Size: 17"
If you see a hallmark that says 750, that means that it is 18-karat gold. Since 24-karat gold is considered almost pure, to determine the percentage of gold in the lesser karat, you would divide that number by 24. If you have an 18-karat gold piece, that means 75% of the metal is gold and 25% is some other metal