A quantity of jewellery items

A quantity of jewellery items, including an early 19th century miniature desk seal, with faceted and tapered citrine handle, the carnelian matrix engraved with the initials EA beneath a Baron's coronet and with fine decoration to the joint, 4.6cm high, a French Empire-style miniature ivory and gold picture frame, the tapered ivory mount with hexagonal gold frame to the glazed compartment over a scrolling bow design, further gold work to the foot and with amethyst back to the reverse access port, French control marks, a carved agate blackamoor pendant, with diamond-set eyes and gold suspension ring, 2cm high, an oval-shaped gold locket pendant, the hinged cover painted in enamel with a seated woman on a pearl-set chair with a child reading at her knees, glazed locket compartment to the reverse, 4cm high, and a case six shell and gold dress studs, the circular shell sections within black enamel borders and diamond-set cross to the simulated button holes