Art Deco platinum, diamond and emerald pendant-necklace/brooch convertible, the lozenge-shaped pendant set in the center with an emerald-cut, fancy yellow diamond weighing 7.03 carats, within an openwork geometric frame set with 2 larger old European-cut diamonds weighing 1.45, carats and 1.42 carats, further set with 156 smaller old European-cut diamonds weighing approximately 5.00 carats, accented by 38 calibre-cut emeralds weighing approximately 2.00 carats, gross weight 30.5 grams, pendant measuring 2 1/4 by 1 3/8 inches, the chain and bail can be removed so pendant can be worn as a brooch, suspended from an ornate handmade period platinum chain, length 26 inches.Accompanied by GIA report 5182230078 dated April 2017 stating 7.03 carat diamond is natural fancy yellow, SI1 clarity, Very Good polish, Very Good symmetry, with No Fluorescence.Accompanied by GIA report 1186349144 dated April 26, 2017 stating the 1.42 carat diamond to be I color, VS1 clarity, Good cut, Good polish, Good symmetry, with No Fluorescence.Accompanied by GIA report 2185349154 dated April 26, 2017 stating the 1.45 carat diamond to be G color, SI1 clarity, Very Good cut, Very Good polish, Good symmetry, with Faint Fluorescence.