A gem-set gold Medieval Revival pendant by Ernesto Pierret

A gem-set gold Medieval Revival pendant by Ernesto Pierret, the four terminals each set with a sapphire within three small rubies and pellet decoration, centred with an octagonal-cut sapphire with a small diamond and pearl to each quarter, applied with the words 'ABI NIN KAI (repeated)', with two folding pendant loops and a brooch clasp, signed to the reverse, 4.5cm