SPECIAL OFFER - $ 299 USD - Price includes the three-volume printed 5th edition of the Handbook of Gemmology, the three-volume digital 5th edition of the Handbook of Gemmology, shipping, insurance, handling and a six-month free subscription to ColourWise, a digital coloured gemstone grading system developed by the World Gem Foundation.

OFFER EXTENDED TO JANUARY 15TH, 2026