Morganite, like many other gems found in pegmatites, can form large crystals. Miners in Brazil have discovered crystals weighing up to 22 pounds (10 kg). The Smithsonian Institution in Washington, D.C., houses two faceted gems weighing 236 and 250 carats. Although morganite is more rare than aquamarine, large cut stones are widely available on the market today. This is most likely due to the fact that morganite has not been widely promoted to the jewelry-buying public in the same way that aquamarine or emerald has.
The majority of morganite on the market is sourced from pegmatite mines in Minas Gerais, Brazil. Afghanistan, Mozambique, Namibia, and the United States have been minor and erratic sources. Despite the fact that it is now only a minor producer, the original Madagascar deposit continues to set the standard for the best material. The yield of magenta-colored rough from that location was superior to crystals from other sources.