Martin Katz Pink Sapphire and Diamond Leaf Brooch in 18K Gold signed-designer this antique diamond brooch is

this antique diamond brooch is a truly beautiful jewel

in 18k gold with a hinge clasp

features independent links of channel set baguette diamonds and prong set round diamonds in a fine platinum

This vintage estate Art Nouveau ring is a wonderful period piece with an elongated design of gold swirls that surround two bezel-set old mine-cut diamonds and a center blue sapphire

Martin Katz Pink Sapphire and Diamond Leaf Brooch in 18K Gold signed-designer this antique diamond brooch isThe pav set pink sapphire leaf, set in blackened 18k gold, with a pav set diamond stem, set in 18k white gold, backed in 18k yellow gold. Signed M for Martin Katz. The retail price was $15,000.