Leading fancy colored diamonds company Leibish & Co. has revealed that its latest acquisition is in fact an exciting piece of GIA (Gemological Institute of America) history, which will intrigue diamond connoisseurs.



According to Leibish, this collection of certified natural round brilliant cut fancy colored diamonds has been wax sealed in a unique transparent box since the day of its grading – January 15, 1981 – nearly 30-years ago.



Sealing of an entire GIA-certified parcel is infrequent, said the company, and this diamond collection "possesses a rarity which turns it into a collector's treasure."



The diamond collection includes 18 stones in a variety of intensities for a total weight of 2.53 carats. The collection comes with its original GIA certificate and ID number, and its stones are guaranteed to be of "natural origin."



"This is a collection diamond lovers will appreciate," Leibish Polnauer, President of Leibish & Co. said. "It's very rare to find a certified parcel, and it's even rarer to find it still in its original sealed box after so many years."



The 30-Year Collection comes inside a sealed transparent box, placed inside a satin lined box. The indentation of the wax seal is still visible on the satin lining of the outer box due the many years in which the box remained unopened.



Interestingly, when considering the color grading, 30 years ago the highest intensity provided by GIA was "Intense." The "Vivid" intensity category did not exist then, and certain stones then graded as "Intense" would today be listed as "Vivid."



Of the stones in the collection, the largest measures approximately 3.53-3.58 x 2.22 mm; the smallest stone in the collection measures approximately 3.10 – 3.14 x 1.87 mm.