Getting Started - Jewelry Measurement, Helpful Charts

When you're working with jewelry, you're working in MM (millimeters) most of the time. What the heck is a millimeter and why do you need to know? It's a unit of measure that is important if you are looking to sell your jewelry. Plus learning the lingo doesn't hurt if you're shopping for custom or handmade jewelry and need to visualize the size of a stone or wire. MM most often speaks to the 'size' of the stone or cabochon. Gauge is speaking about the 'thickness' of wire.
In Gauges, the SMALLER the number, the thicker the wire.
The 'LARGER' the number, the thinner the wire.
Keep that in your perfectly twisted memory. :))
MM and gemstone sizes do not work this way. The larger the number, the larger the size.
Wire comes as 'Dead Soft', 'Half Hard' and 'Hard'.
In Gauges, the SMALLER the number, the thicker the wire.
The 'LARGER' the number, the thinner the wire.
Keep that in your perfectly twisted memory. :))
MM and gemstone sizes do not work this way. The larger the number, the larger the size.
Wire comes as 'Dead Soft', 'Half Hard' and 'Hard'.
- Use Dead Soft wires for wire wrapping. Wire hardens as you work with it. Use Half hard or Hard wires for things such as findings or jump rings where more strength is needed in a single bend or loop.
- Wire also comes round, half round, square, twisted, imprinted with design.
- Wire also comes 'bare' (no anti-tarnish coating), or comes coated to prevent the development of a patina. Bare wire, can be oxidized (antiqued) but coated wire will not take to oxidation.
Necklace Lengths in Inches

Remember that not all body sizes are the same... nor are all bead sizes. A person who is 'thicker' in stature might require more material (chain or beads) to reach the desired length. A 16 inch chain will be longer on a young, petite girl than on a taller, more maturely developed adult woman, for example. The neck sizes and broadness of shoulders will be very different between a child or young adult vs a fully grown adult.