This is my version of the jewellery in Titian's portrait of Isabella of Portugal.
Empress Isabella of Portugal (1503–1539), the beloved wife of Charles V, Holy Roman Emperor, mother of Philip II of Spain and daughter of Manuel I of Portugal. Titian painted her after her death, using a mediocre painting for reference. For the rest of his life, Charles took the painting with him on all his travels.
The main pendant is a large piece made with filigree antique golden plated brass. There are crystal gemstones set in quatre foil ouches and faux pearl appliques. There is a brooch pin back to attach this part of the necklace to a gown. A faux pearl hangs from the pendant and there are pearl bead strands designed to be worn sweeping to the front of your gown. The necklace is finished with a lobster clasp.