These are current K10 citrine quartz square stud earrings. - Material: K10 yellow gold - Design: Square - Stud Type: Stud earrings These citrine earrings feature a cheerful citrus color. The lace-like frame creates a sense of openness, making them perfect for casual styles. Metal Material: K10YG Gemstone: Citrine quartz Size (length x width): Approximately 8.5 x 8.5mm Purchase Price: 11,000 yen Purchased from an online shop. They came with silicone backings when purchased, but the ones included are not the original ones. There is no box or warranty card, so what will be sent is the earrings themselves and silicone backings. The frequency of use was only a few times, so I think they are in good condition, but please check the condition in the photos. Returns are not accepted to prevent swapping. Shipping will be via Yu-Packet Post Mini. Thank you for looking.