A very fine aquamarine ring by Paul Binder, centered with an emerald-cut aquamarine of intense color and high clarity, weighing approximately 13.25 carats. The 18 karat gold square-shaped shank features shoulders set with 36 brilliant-cut diamonds, with a total diamond weight of approximately 0.72 carats. 
 
Accompanied by the original gem report of the ‘Netherlands Gem Laboratory’, stating that the aquamarine shows characteristics of Santa Maria. 
 
Signature: Maker’s mark of Paul Binder. 
 
Hallmarks: 750 stands for 18 karat gold. 
 
Origin & Period: Zürich, circa 1985. 
 
Dimensions: Aquamarine: 15,8 x 13,4 x 8,45 mm. 
 
Price upon request. 
Reference number: 150