Cyberduck is free software, but it still costs money to write, support, and distribute it. As a contributor you receive a registration key that disables the donation prompt. Or buy Cyberduck from the Mac App Store or Windows Store.

Free Software. Free software is a matter of the users freedom to run, copy, distribute, study, change and improve the software. The continued donations of users is what allows Cyberduck to be available for free today. If you find this program useful, please consider making a donation or buy the version from the Mac App Store or Windows Store. It will help to make Cyberduck even better!

Aquamarine High Quality <PREMIUM — 2026>

| Origin | Quality Profile | Market Premium | | :--- | :--- | :--- | | | Classic strong, saturated blue. The historical benchmark. | High (especially for documented older stones) | | Mozambique (Montepuéz) | Produces very fine, intense blue "Santa Maria" material. | Moderate to High | | Nigeria & Madagascar | Typically lighter blue, but occasional fine stones. Can be very clean. | Low to Moderate (for top tier) | | Pakistan (Shigar Valley) | Known for exceptional clarity and a slightly cooler, pure blue. | Moderate to High | | China, Zambia, Vietnam | Mostly commercial to medium grade; fine stones are rare. | Low |