This is a magnificent sculptural necklace created in Rio De Janeiro Brazil by the artist jeweler Haroldo Burle Marx, back in 1970. The artistic necklace is gorgeous and has been masterfully crafted with free forms shapes and concretism art patterns in solid rich yellow gold of 18 karats with a delicate Florentine brushed finish. The design is completely articulated with concealed links, thirty movable fringes and slightly graduated bezel settings, which are mounted with a fabulous suite of ten natural Brazilian Aquamarines carved in their iconic Forma-Livre shapes. The concealed security lock is fitted with a push box and a hinged figure 8 for extra safety. Aquamarine: Mounted in bezel settings, with 10 graduated elongated fancy cabochons cut (average of 35 x 10 x 7 mm) carved from natural Brazilian aquamarines with a combined weight of about 210 carats. Weight: 152.95 Grams, (98.15 Dwt).Size: The inside circumference is 16.65 Inches, (42 Cm.). Measurements: The dangle drop element in the center is 39 mm by 13,5 mm by 13 (1.54 x 0.55 x 0.51 Inches). Hallmarks Stamped with the designer's mark, the goldsmith maker's mark, the mark for the assay and warranty of the 18kt gold and signed in full as follows, "BURLE MARX GM 791 IND BRAZIL .750 ". Very good conditions. Upon Request, Auction House may provide an appraisal. This will carry an additional cost. Appraisals are made by our in house GIA certified Gemologist.