Andrew Grima ,a pretty tourmaline brooch. The 1 3/4" x 1 3/4" 18k yellow gold brooch with 4 carats of emerald-cut tourmaline, accented with .25cts pf round white diamonds. An sculptural and wearable piece by British Artist- Jeweler Andrew Grima. Grima, known for his organic flair is considered one of the most important jewelers working in the last half of the 20th century. Interesting and unusual , his jewelry is found in some of the most discerning collections in the world.. just ask the Royal family. Signed Grima with British date letter for 1970. 20 gr.