Fine 1980's 14K Gold Brooch with Onyx and Pave Set Diamonds

c1980 Bold 80's style brooch in 14K yellow gold. Triangle cut onxy with finely set pave diamonds in the center. Diamonds are round brilliant cuts, approx. .60 ctw, G-H color, VS-SI clarity. 2 in. wide x 1 5/8" tall, safety clasp. Looks great on an omega chain. Jewelry has polished and checked all prongs. Looks like the day it first was put in a jeweler's case. Excellent. 16.80 grams