Stamped 14k on the back of each earring, no maker. I acid tested the earring post, the bottom part of the earring, and also the shell shaped component. All acid test as 14k. Weighs just over 4.4g approx. Gently used. Vintage piece. These are very pretty and elegant looking. Please see the pics for the measurement and to judge the condition. Lightweight design with a polished gold finish for everyday or special occasions. The blue crystals catch light for subtle sparkle.