EARLY 20TH CENTURY DIAMOND PENDANT NECKLACE AND PEARL, EMERALD AND DIAMOND RING AND TWO DIAMOND RINGS

EARLY 20TH CENTURY DIAMOND PENDANT NECKLACE AND PEARL, EMERALD AND DIAMOND RING AND TWO DIAMOND RINGS
Old and rose-cut diamonds, circa 1910, necklace 45.0 cm, pendant 5.5 cm, red J.F. Wrana case; Pearl, calibré-cut emeralds, old and single-cut diamonds, platinum (Austrian marks), circa 1915, ring size O½; Old and circular-cut diamonds, gold (Austrian marks), circa 1900, ring size L½ and M
Pease note that the pearl has not been tested for natural origin