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 and shows no indications of heating. 
 
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