What are hallmarks and makers marks?
Women's Standard Length Necklace Sizes:
| Length(in.) | Length(cm) | Description |
| 16 inches | 40 cm | Falls perfectly around the base of the neck like a collar. On a petite woman it will hit your collarbone while for plus size women it might feel more like a choker. |
| 17-19 inches | 43-48 cm | A common choice for women that will fall just below the throat at the collarbone. This length is popular for adding pendants which will hang over a crew neck. |
| 20 inches | 50 cm | Will fall a few inches below the collarbone and allow a little more breathing room. Perfect for a low, plunging neckline or if you want to wear it over a turtleneck. |
| 22 inches | 55 cm | Falls at or above a low neckline. |
| 24 inches | 60 cm | Falls below any neckline. |