These settings are beautifully designed to securely hold Starbloom Fancy Stones, and come in three different versions: 00 C is unplated with no holes and a closed back; it’s predominantly used for soldering and post-plating jewelry. H2 O comes in three plating variants: unplated, gold plated, or rhodium plated, with holes and an open back, and is largely used in sewing. 1T O shares the same three plating options, but the ring on top and open back lend it to hanging projects (rather than sewing), and make it especially suitable for DIY.