Imperial Topaz - Natural Raw Gemstones, Ouro Preto, Brazil wire-wrapped necklace Each gemstone strand is finished

Each gemstone strand is finished with sterling silver wire guardians and crimp beads

Band in back is 1/8 inch wide (3mm)

Overall hanging height: About 10 inches (26 mm)

The smoothness of the stone is what makes wire-wrapping a challenge - each one requires more wire and elaborate wrapping to keep the stone secure

Imperial Topaz - Natural Raw Gemstones, Ouro Preto, Brazil wire-wrapped necklace Each gemstone strand is finishedImperial Topaz is one of the rarest and most valuable varieties of topaz, prized for its vivid golden yellow, sherry, and reddish orange hues. It is significantly rarer than standard blue topaz (which is typically heat treated). Unheated, natural Imperial Topaz falls into the upper luxury tier of colored gemstones. These 2 specimens come from the Ouro Preto mine in Brazil, where most Imperial Topaz is mined. They are about the same width: 6 7 mm. A is