This is a wonderful signed 10k BDA heart motif baby signet ring in original box from pristine old estate. The front is 5mm and back band is 1mm and weighs 0.4 grams. The ring and box is in excellent condition and appears unused. The ring is too small for my ring sizing rod. It is about the size of the rods end so size 0 is an estimate. You should love beautiful condition and beauty. Thanks for looking.