Precious Stones & Gems

18th century (Ch'ing)

18th century

18th century

18th century

1748 (Early Modern)

1750-1799

2nd half 18th century

1750-1800

2nd half 18th century

2nd half 18th century

2nd half 18th century

1760-1820

late 18th-early 19th century

1764 (Qing dynasty)

1766-1776

late 18th-19th century

4th quarter 18th century

1775-1825

late 18th century

late 18th-19th century

late 18th-19th century (Ch'ing)

4th quarter 18th century

late 18th century

1775-1825

late 18th-19th century

late 18th century

ca. 1797

1800-1890

19th century (Ch'ing)

19th century (Ch'ing)

19th century

19th century