Materials: pink topaz, blue topaz, aquamarine, solid 18k gold (the topaz GIA certified with reports 6203382874 and 6207382889; the gold marked and tested)
Workmanship origin: Paris, France (hallmarked)
Marks: [left facing ram’s head] (punched to brooch pin catch) Paris hallmark in use from August 16, 1819 to May 9, 1838; indicates the item has tested with limited warranty by touchstone to be a minimum of 18k gold.
Weight: 43.6 grams (brooch 8.4 grams, necklace 35.2 grams)
Length of necklace: 39 cm (15.35 inches)
Diameter of floral roundels: 21 mm
Height of aquamarine drops: 38 mm
Dimension of brooch: 62 x 34 mm
Dimension of gemstones:
Pink topaz: 55 at 6 x 4.6 mm oval; 2 at 8.2 x 6.2 mm oval; 1 at 7.2 x 6 mm oval (approx 31.49 ctw; 55 x 0.52 ct + 2 x 1.08 ct + 0.73 ct)
Aquamarine: 11 at 7.8 x 6 mm oval; 11 at 13 x 6.75 mm pear; 4 at 8.25 x 6.25 mm oval (approx. 28.93 ctw; 11 x 0.77 ct + 11 x 1.5 ct + 4 x 0.99 ct)
Blue topaz: one at 12.5 x 11.5 x 6.5 mm (approx. 6.5 ct)
Dimension of fitted box: 22 x 16.5 cm
Condition: two spots of old tin solder repair, one to the brooch lower end and one to a small spot where an aquamarine drop connects to the necklace. My jeweler has removed much of the old solder and applied a thin layer of gilt gold finish over these soldered spots to improve the appearance. One of the brooch pendant hook attachments to the back is a later addition and not solid gold; the original hook on the opposite side is solid gold. Due to the softness of 18k gold, and the relative thinness of gold sheetwork during this era, some of the edges of the gold setting are slightly crimped or folded inward. Imprints from the fitted box suggest that the necklace was originally longer; one floral roundel and aquamarine drop was removed, possibly to improve the hang or appearance of the necklace when worn. Otherwise this necklace is in good condition for the age; all the gems are well-matched in color, cut, and appearance; there is no suggestion of replacement stones.