The pendant loop has approx 1/4" clearance for your generous chain. This tested 14K gold in 6 places. The back is marked 14K in 2 places with a model number. Coral beds are being protected, make this yours today! To earn free USPS/Priority/Ins/Track please mail your $298 USA Check or USPS Money order to: Mimi Dee Artwear - POB 458 - Methuen, MA 01844 (PS: same address > 12 years!)