Gold is a precious metal that has been cherished for thousands of years, with the first known gold jewelry dating back to 4000 B.C.
Pure gold has a melting point of 1948˚ Fahrenheit.
Pure gold is very malleable, and is often alloyed with other metals to strengthen it.
Karats are the units used to measure the purity of gold.
24K Gold = Pure Gold
22K Gold = 91.7% Pure
18K Gold = 75% Pure
14K Gold = 58.5% Pure
10K Gold = 41.7% Pure
9K Gold = 37.5% Pure
All photos courtesy of Scott Papper, GIA GG, AJP, CMA (NAJA)