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Lot 58. An Important Platinum Topped Gold, Montana Sapphire and Diamond Butterfly Brooch, Marcus & Co. Estimate: $6,000-8,000. Sold for $45,000 © 2016 Leslie Hindman Auctioneers, Inc.

containing 152 round mixed cut sapphires measuring from approximately 0.70 mm to 5.37 mm in diameter, together with 79 old European and rose cut diamonds weighing approximately 1.86 carats total. Stamp: Marcus & Co. (scratch mark 5113). 11.50 dwt 

Accompanied by an American Gemological Laboratories sapphire identification and origin certificate number CS 1072655, dated January 13, 2016, stating Mineral Type: Natural Corundum, Variety: Sapphire, Origin: USA (Montana), Enhancement: No indications of heat enhancement, Clarity Enhancement: None. 

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Property from the Collection of Diana McKay, Berkeley, California 

The brooch is fully intact, all stones are present and securely set, scattered stones show minor wear. The dimentions of the brooch are approximately 70.00 mm in length, and 45.00 mm in width. The brooch dates from the Edwardian period, approximately 1900-1915, from our best estimate.

Leslie Hindman Auctioneers. IMPORTANT JEWELRY, April 3 2016 12:00 PM 1338 West Lake Street