How Are Natural Gold Nuggets found? They can be found in rivers and streams using a gold pan or suction dredges that act like an underground vacuum cleaner. Larger operations use large machinery that dig up huge sections of dirt weighing several tons and run it through machines that separate the gold from the dirt. Nuggets are also found using a metal detector. How are they weighed? They are weighed by the troy ounces. 12 ounces = one pound which differs from weight which is 16 ounces to the pound. The troy ounces are broke up into 20-penny weight to the ounces and use the symbol DWT or by the grams which has 31.1 to the ounces. The larger the nugget the more rare and valuable they are. A one-ounce nugget is now considered as rare as a five-carat diamond. How many of those do you own? Dont miss out on this one when its gone it will be hard to replace a unique and beautiful 83.5 gram Gold nugget, from the highlands of PNG. This nugget was mine the old fashion way with pick shovel and gold pan by the Hylande natives in the remote Frida River when gold goes up will skyrocket with all the turbulence going on gold is looking better and better. The item “Large Natural Gold Nugget from Papuan New Guinea 83.5 Grams VERY Very Rare” is in sale since Thursday, September 20, 2018. This item is in the category “Coins & Paper Money\Bullion\Gold\Nuggets”. The seller is “baernorma” and is located in Valley Village, California. This item can be shipped to United States.