The Nugget Style pendant was made in the 1970s. It does not have a metal mark but was tested with nitric acid and a "kee" tester to be 14k solid yellow gold. It weighs 5.0 grams and measures 1 1/4" x 5/8". It holds a slice of watermelon natural tourmaline that measures 14.5 mm x 13.5 mm. There is a opening at the top to accommodate a chain.