The Lisner pin above has delicate enamel work, an aurora borealis stone, and imitation pearls. A lobster claw clasp is a jewelry fastener that resembles the claw of a lobster. A tiny spring keeps the arm of this clasp closed. It is used to attach two other rings or links of a necklace or bracelet . A locket is a pendant that can open up.
Lockets can hold photos, hair, a charm, or other small, precious object.
Most blue topaz is silver topaz that has been irradiated and heat treated, but some stones are blue naturally. Topaz has a hardness of 8 and a specific gravity of 3.5-3.6. This type of glasses was used a long time ago. The wax is then enclosed in clay and the wax is melted out, making a hollow mold. The mold is then filled with molten metal.