Hallmarked gold?

[Bennyxp]

Isn't it true that if a sterling silver isn't hallmarked it has to be sold as a white metal? Well, their 'solid gold' pieces don't seem to have hallmarks from looking at the description on their website, and the images supplied. :/

 

[Mommabear]

Articles do not have to be hallmarked if they weigh less than 1 gram for gold, 0.5 grams for platinum and palladium and 7.78 grams for silver.