If you'd like to customize this piece or add engraving, please reach out to us at Showroom@bleeckerandprince.com. MY DNA 14K Gold, approx weight: 3g Lab diamond Marquise cut: 0.20ct Plate Measurements: Height: 14.5mm Width: 10mm Thickness: 1mm Size & Fit Chain Length: 45cm with 42cm option As you can see the plate is fixed on chain so will not move back and forth. Looks great layered with other necklaces!