Museum-quality antique late 17th/early 18th century diamond and yellow gold Baroque "sequilé” earrings and pendant/brooch demi-parure, Portuguese, with hallmarks from the period and in the original case. This Georgian sequilé jewel from the first half of the 1700s features intricate filigree, pierced, and die-pressed gold work. It is closed-back set throughout with table-cut and rose-cut diamonds, notable for their almost crude simplicity. The pieces are richly adorned with chiseled and…