An art deco sapphire and diamond clip brooch, by J R Ogden & Sons, circa 1935. The tapering openwork plaque of scrolling design collet-set with graduated oval-cut sapphires, brilliant and baguette-cut diamonds, diamonds approx. 2.85cts total, signed J R Ogden & Sons, length 4.9cm, fitted case
An early 20th century sapphire and diamond brooch pendant The openwork plaque of fine knife-wire, millegrain set brilliant and single-cut diamond detail, its centre issuing a stylised scroll of similarly set diamonds and calibré-cut sapphires, to an oval mixed-cut sapphire drop, diamonds approx. 4.00ct. total, length 8.0cm.
A late 19th century opal and diamond brooch/pendant, circa 1890 The oval cabochon opal within a scrolling single-cut diamond foliate surround, suspending an old brilliant-cut diamond drop, mounted in silver and gold