A Belle Epoque diamond necklace

A Belle Epoque diamond necklace, of garland style, centred with a giardinetto motif, articulated beneath a ribbon bow surmount, to graduated swags tied by ribbon bows suspending foliate drops, millegrain set throughout in platinum with old brilliant and rose-cut diamonds to an 18 carat white gold trace link backchain, measuring approximately 49cm in length, circa 1910, gross weight 13.8 grams

No. 20654M