Actually, this can be claimed as one of the advantages of BTC over gold. It is not possible to purchase gold in minute quantities (such as the equivalent of $10 or $25, which will be 0.25g and 0.65 grams respectively). On the other hand, it is even possible to purchase BTC in very small quantities, such as $0.1 or even $0.05 (i.e. BTC0.0001 or 0.1mBTC).
I see so when accumulating gold it must be on a large or whole quantity unlike in bitcoin where you can buy even at small denomination.
But how gold transaction are dealt? Where do people who like to accumulate one will start?
Where I live small fish usually buy gold coins which are sold in banks. Bigger fish may buy small gold bars (banks also sell them). Whales buy gold at commodity exchanges by buying gold futures which are settled at a certain date with physical delivery of purchased gold...
So, as I assume, you should look into gold coins and mini-bars