1) Turn of the 20th century 14K yellow gold circle brooch with demantoid garnets, old European cut diamonds and pearls, c-clasp, 1 in. D., 2) Art Deco 14K white gold ring featuring a cabochon star sapphire and round cut diamonds, sz 5 and 3) 10K bicolor art deco bar pin with imitation sapphire, milgrain detail, c-clasp, 1 in. L., 7 grams tw Estate of Amelia Trevelyan, Art Historian and noted scholar of the indigenous arts of the Americas