SHAY DIAMOND PERSONALIZED INITIAL THREAD NECKLACE The SHAY Diamond Personalized Initial Thread Necklace. This Tennis Necklace is lightweight and 1.3mm wide, with a total of 3.54cts. You can add your own diamond pave personalized initial in our gothic font. Details: 18-karat gold White Diamonds: approx 3.54 cts Natural stones only Adjustable Chain Length: 14-16" Pendant: 9mm Width: 1.3mm Features lobster clasp closure Product Number: SN455 Looking for something bespoke? Contact us . Slight variations in color, shape, and size are part of their beauty.