Description & Technical information

The domed lapis of rectangular outline, bordered by black enamel, tapering millegrain edged shoulders alternating stripes of single cut diamonds and black onyx, mounted in platinum, serial number 3274, French assaymark and workshop mark, second initial D (partial).
Weight: 6.5g

Date:  c.1925
Period:  20th century
Origin:  French
Dimensions: 1.3 x 1.2 x 0.9 cm (0¹/₂ x 0¹/₂ x 0³/₈ inches)
Categories: Jewellery