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29.89ct Alexandrite Crystal, Manyara, Tanzania, VERY VERY RARE, INVESTMENT GRADE, Can you see the gem vein in the crystal changing color. 24.2 x 11.9 x 9mm, Untreated Unheated
36.59ct Alexandrite Crystal, Manyara, Tanzania, VERY RARE, INVESTMENT GRADE, Can you see the gem vein in the crystal changing color. 26.2 x 14.3 x 13mm, Untreated Unheated
64.15ct Alexandrite Crystal, Manyara, Tanzania, VERY RARE, INVESTMENT GRADE, Can you see the gem vein in the crystal changing color. 22x19.5x15mm, Untreated Unheated
6.67ct Emerald Lot, Tanzania (near Zambia border, almost identical to Zambian material) Untreated Unheated NO OIL. 0.79ct-1.03ct
15.72ct Emerald Lot, Tanzania (near Zambia border, almost identical to Zambian material) Untreated Unheated NO OIL. 0.50CT-1.32CT