Description
Date: c. 1750 – 1775, third quarter of the 18th century
Materials: natural South American emeralds (Columbia, Brazil, or Peru), solid 18k gold (marked and tested)
Marks:
[A lion sergeant] punched in three places, for solid 18k gold
[CO] possibly regional mark for Cordoba, Spain
Workmanship origin: Spain, likely Cordoba
Sourced from: Munich, Germany
Weight: 17.8 grams
Height: 78 mm
Width (at widest point): 55 mm
Dimension of Lazlo Bow: 55 x 42 mm
Dimension of Middle Floral Element: 24 x 22 mm
Dimension of Lower Drop: 25 x 20 mm
Total Emerald Count: 71
Dimension of Emeralds (in mm): three largest- 5.5 x 4.5, 4.5 x 3.5, 4 x 3.4
The rest – 3.7 x 3, 3.5 x 2.2, 3.4 x 3 (triangular cut), 3.3 x 2.7, two at 3.2 x 3, two at 3.2 x 2.2, 3.1 x 2.7, four at 3 x 2.4, two at 2.7 x 2.5, 2.7 x 2, 2.6 x 2.6, 2.6 x 2.2, 2.5 x 2.5, 2.5 x 2.3, 2.5 x 1.5, two at 2.4 x 2.4, two at 2.4 x 2, 1.8 x 1.8, fourteen at 1.6 x 1.6
Estimated total emerald weight: 4 – 4.5 ctw
Condition: overall in excellent state of preservation for age. Stones are original. No replacements, repairs, or missing elements. The 14k brooch mechanism and bail to the back is a later 20th century addition. Under 60x loupe magnification, I can spot some abrasion, chips, wear to the emeralds (particularly along facet junctions and edges). Most of these surface flaws are hard to spot with the naked eye; no stone is badly chipped (please keep in mind that emeralds, by their very nature, tend to fracture easily).