the oval shaped top formed of a laurel wreath around a line of diamonds and central foliate cluster, suspending a similar drop shaped swing cluster, with draped ribbon collet tassels either side, millegrain set throughout, with a fitted Cartier case, tool and tracelink chain necklet and pendant fitting, accompanied by PDF scan of IAJA expertise report no. XP1444-031223 signed by Olivier Bachet and Bernhard Berger declaring that in their opinion this is a genuine Cartier item from Cartier Paris, c.1909.
For a similar example see:
'Cartier. 1900-1939', Judy Rudoe, Abrams & Metropolitan Museum of Art 1997, p.78 Length 7.3cm / 2 3/8'' Weight: 21g
Diamond double collet and platinum tracelink chain necklace, spaced by 101 short tubular platinum links crimp-collet set to each side with a round brilliant cut diamond, approximately 12cts in all
Early 20th century Russian diamond scroll collar necklace by Vassily Finikov, St. Petersburg, reputedly by Bolin and gifted in 1905 to Duchess Cecilie of Mecklenburg-Schwerin, converting to a tiara,