Tiffany & Co. - a tourmaline and diamond crescent

The graduated circular-shape tourmalines terminating in old-cut and rose-cut diamonds, with a detachable brooch fitting, signed Tiffany & Co., length 3.3cm.
Condition Report: Overall condition fair to good. Some surface scratches/ wear, discolouration and minor dents in keeping with general age and wear. Gross weight approx. 8.2g. All stones in good to fair condition with some abrasion and minor nibbles to the girdle and facet edges. Brooch fitting removable and likely not original to the piece. Signed to the body of the brooch, visible when fitting removed. Individual size and setting of rose-cut diamonds prevents accurate weight estimation and colour and clarity assessment. Rose-cut diamonds generally well matched and fairly well cut, with good clarity and some typical surface features. Condition reports are offered as a guide only and we highly recommend inspecting any lot to satisfy yourself as to its condition.