Enamelled yellow gold pendant necklace set with natural pearls and old brilliant cut diamonds, original fitted case, circa 1895, £18,000.

Pieces by Federico Giuliano are almost invariably unsigned and can only be identified by the satins of their fitted cases. The address inside the case of the pendant necklace is 49 Howland Street, London W, where Federico moved his business in 1891. By 1903 the business had shut down, and Federico returned to Naples where he died.

Fine late Georgian foiled garnet necklace mounted
in yellow gold, comprising two pendant sections,
one converting into a brooch, circa 1830, original
fitted case, £14,500.

Stylised fox head brooch set with a single black opal and rose cut diamonds, mounted in platinum on yellow gold, circa 1905/10, original fitted case, £6,800. Approx. 28 mm wide.

There are not many stones whose origin are can be so clearly defined as the black opals discovered around 1900 at a former sheep station in the Australian outback known as Lightening Ridge. The name is very appropriate since the Romans thought that opals were first created when flashes of lightening hit the earth.

This unusual abstract fox head admirably shows the brilliance and intensity of colour of a Lightening Ridge opal, and why these rare and distinctive black opals are reputed to be the finest in the world.

Every now and then we are able to source an item of period jewellery that is simply quite exceptional. Being able to handle a piece such as the platinum mounted pendant brooch featured below, circa 1910, makes our profession a real joy. The Edwardian craftsman has designed a removable brooch and separate pendant fitting, which is secured with a miniature screwdriver. Fitted case, £15,875. Approx. 37 mm wide and 62 mm long.

Fine quality 1920s Montana sapphire and diamond bracelet in a mille grain platinum setting, £20,000.

Montana sapphires are small, beautiful, and somewhat rare. Mined during the second half of the 19th century, they are reputed for their clear metallic cornflower blue colour, which is natural and not the result of heat treatment. These features rank them among the world's finest sapphires. They are usually cut as relatively small stones. In 1923, the main mine was damaged so badly by rain that production almost ceased.

Cushion shape single stone diamond ring, the GIA certificated diamond weighing in excess of 4 carats, in a pavé set diamond platinum mount.

We are able to source both old and modern brilliant cut diamonds to your requirements.

South Sea pearl necklace comprising 29 pearls graduating between 14 and 15 mm, strung with an 18ct white gold pavé set diamond ball clasp with a total diamond weight of 1.80 carats, £22,200. Also featured an exquisite late Victorian red and white enamelled brooch set with old brilliant cut diamonds and natural pearls, circa 1890, £18,500.

Georgian foiled pink topaz necklace with intricate pierced gold work, circa 1820, £5,000.

Edwardian graduated sapphire and diamond necklace consisting of clusters interspersed with bow motifs, platinum mounted, £30,000. Also featured an Edwardian style sapphire, ruby, diamond and pearl butterfly mounted in 18ct yellow gold with a detachable brooch fitting, £5,900.

Exceptional Belle Epoque style dragonfly with plique-à-jour enamelling, set with an emerald, sapphires and diamonds, the eyes ruby set, the wing span approx. 10 cm, £8,750. Exceptional also the Mid-Victorian bangle with its ornate gold carving, set with five oval chrysoberyls and old brilliant cut diamonds, £24,000.

Fine Edwardian diamond necklace comprising graduated old brilliant cut diamonds interspersed with a quatrofoil of diamonds, circa 1910, price on request. This necklace can be converted into a single row bracelet.