1920's Portrait Colour Change Sapphire Intaglio Seal hunting Excellent Victorian three-stone gyspy ring

Excellent Victorian three-stone gyspy ring set with a blue sapphire flanked by two chunky old cut diamonds

A phenomenal antique bracelet featuring a turquoise-studded orb locket (swipe to see it open) along with a further 7 gold orbs

An Art Nouveau filigree necklace by Norwegian jeweller Marius Hammer

Exceptionally beautiful antique cluster ring dripping with old cut diamonds surrounding a central royal blue sapphire

A stylish Victorian bangle studded with square "nails"

1920's Portrait Colour Change Sapphire Intaglio Seal hunting Excellent Victorian three-stone gyspy ringDATE: Art Deco, c. 1920 A fantastic colour change sapphire (synthetic) seal, with a intaglio carving to the base. It's carved with a ladies portrait and the stone changes from a bluey purple to a turquoise green when moved from electric light to daylight. It remains in great condition and dates to the Art Deco period, circa 1920. Colour change gemstones possess the ability to appear as two completely different colours depending on the type of light