Antique / Vintage signet ring.  14k gold and lapis lazuli. Made in New York, by Tiffany & Co.  c 1930 for Boston College, on of the top universities in the USA.

Currently US size 5.5.  Can be resized. Weighs 8.7grams. 12mm accross. 

Classic Fraternity style signet ring, made by the top American manufacturer, Tiffany and Co. A rectangle of lapis lazuli, of a lovely even blue colour, set in 14k

gold. One shoulder has 3 Greek letters, fraternity symbol, and the other a symbol of a badge containing a book, encircled by letters that are not too clear, but

include Emmanuel Bost.. and Collegium. 

Inside the shank is engraved with the initials of the previous owner: M.B.C and 14k TIFFANY & CO. 

Good, original condition. No damage/restoration of any sort were found.