Umba Sapphire rough from Tanzania with a range of green, yellow, gray and purple tones.
From the Charles Shook collection. Shook was a longtime gem collector whose material included older, hard-to-replace rough from classic sources.
5 pieces / 26.14 total carats / 5.3 carat average / AA+ (85-90+% clean
Estimate: $815 - $875
