These 18K rose gold Marla Aaron quartz earring charms are crafted in the United States and feature a large central disc spotlighting a large precious stone. Each natural stone used is unique, therefore its depth of colour may vary from more pink, to more clear tones. They are designed to be attached to the label's earring bases. Quartz is a hard substance found in rocks. And anybody who gifts us this Marla Aaron charm will immediately be our rock.