A diamond and blue enamel cross pendant

A diamond and blue enamel cross pendant, the old brilliant-cut diamond set in a square blue enamel border to four rows of smaller old brilliant-cut diamonds forming a cross shape, all within blue enamel border to a rose-cut diamond-set fleur de lies to the ends and in between the arms, suspended from a diamond-set loop, the diamonds estimated to weigh 0.7 carats, set in 18ct yellow gold mount, overall dimensions 4.5 x 3.3cm, circa 1870, gross weight 8.6 grams.

No. 24863M