Vintage Natural Persian Turquoise Bead Necklace with Diamonds

A rare, mid 20th century, 100% untreated natural turquoise beaded necklace. The beads range from 11mm to 16mm and are of a gorgeous robin egg colour with slight matrix coming here and there typical of Persian origin. Secured with a cabochon turquoise and diamond cluster clasp. Circa 1950’s.

• Turquoise: untreated, Persian origin, 11mm-16mm diameter
• Diamonds: 1.60 carat total, G colour and VVS/VS clarity
• Metal: 18ct white gold
• Hallmarks: Assay
• Necklace length: 60cm
• Clasp dimensions: 18mm x 22mm
• Gross weight: 127 grams
• Condition: Very good, commensurate to age and use. The necklace has been restrung with silk for safe wear and best presentation

Majority of Turquoise are treated, stabilized , tinted, waxed, reconstituted, enhanced. Completely untreated turquoise is very rare and unique