Posted in Bijouler Discount Codes. Now available in store… Druzy gemstone jewelry. Or Drusy gemstone jewelry (both spellings are commonly used) is a variety of Agate, Onyx and Crystal gemstones with a natural cluster of tiny crystals across the surface of the gem, creating an eye catching sparkle effect as the gem is moved. Each Druzy gem is one of a kind and as they are naturally occurring, we won’t be able to recreate a design exactly… so once they are gone, they are gone! Posted in Gemstone Jewelry.