This is one of the finest Sigi Pineda pieces that I have had the pleasure to hold. The pectoral is extremely thick silver being 1.25in. at it's center height and weighing 108 grams. You can see and feel the raw, almost pure, buttery smooth silver. This is an early Sigi showing hallmarks with an eagle 3. The diameter across is 4.5in. and you measure from the bottom of the drop not the inside circumference because the pectoral perks upward and covers aging beautifully in the hollow of the neck. The hinges do make it sit perfectly. It does have a marvelous patina and the condition is exceptional. This is collector and museum quality, just LOOK A THAT NECKLACE!