This necklace is made using hemp string, and mother-of-pearl, (or MOP) buttons. MOP, also called nacre, are cut from the lining of oysters. The nacre lining is the same as the outer coating of pearls. Nacre is strong, and resilient. Buttons made from MOP are long lasting, and have a particular iridescence.
MOP has been used since the Ming dynasty. It has been made use of for jewelry and decorative arts for centuries. A color palette of whites, grays, iron, and charcoal resemble the hemp string colors. Simple overhand knots lend an airiness to the design. The shimmer of the buttons give a casual chic to the neckline.