
Who We Are
Valencia's gemological excellence: expertise and transparency in digital.
Our history is rooted in the goldsmithing and gemological tradition of Valencia, the beating heart of Italian high jewelry. Pietre Preziose Online is the digital brand specializing in the supply of loose gems, born from the legacy and direct experience of Masi Gioielli, the company founded by the brothers Umberto and Andrea Masi in 1988.
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Our Mission
Reserve gems with the excellence and ethics of tradition.
Our fundamental mission is to make the most precious and certified gems accessible, the result of thirty years of careful selection. We leverage the wealth of historical inventories and warehouse stocks accumulated by our parent company, thus offering the highest quality natural stones at an exceptionally competitive value. It's important to emphasize the limited nature of this offer: the available quantities of each gemstone are precisely indicated on the product page, and once sold out, neither reservations nor reorders are possible.
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