Sapphire in slate matrix – Zazafotsy, Ihosy, Ihorombe, Madagascar
 Sapphires in various growth forms, each with a particularly beautiful blue-violet color, are set on a matrix. A long-prismatic sapphire measuring 1.8 cm sits directly next to a flat-growth sapphire measuring 1.5 cm in diameter.
 Under long-wave UV light, the crystals appear an intense red.
 Sapphires on matrix are rarely mined and offered on the mineral market.
 Wonderfully aesthetic and high-quality collector's item from Africa.
 Under long wave the gemstone shows a red-violet fluorescence.