16.52 Ct. Tourmaline from Mozambique

This transparent watermelon tourmaline slice weighs 16.52 carat and measures 20.86 x 18.50 x 4.51 mm, presented in a natural slice shape with an excellent polish that enhances its crystalline clarity and vivid inner color zoning. Unlike many small or heavily treated watermelon pieces on the market, this specimen displays a clear, transparent body with a well defined pink core surrounded by a pale outer rim, qualities that are immediately apparent to the eye. The clarity is graded slightly included when evaluated at eye level, which means that the small internal features do not distract from the stone, they add character and a natural fingerprint that collectors and designers find desirable. There has been no enhancement to this tourmaline, the color and polish are entirely natural, and the origin is Mozambique, a source known for delivering specimens with lively hues and good crystal structure. Presented by The Natural Gemstone Company, this watermelon slice stands out for its combination of size, transparency, and natural beauty.

When compared to other watermelon tourmalines commonly available, this stone offers distinct advantages in terms of authenticity and usable size. Many market offerings are small fragments, thin slices, or pieces that have been dyed or heat treated to enhance color, which can compromise long term value and appearance. Other pieces with stronger saturation often come at the cost of clarity, or they are heavily fractured and weak for jewelry. This tourmaline balances a rare, wearable scale with a transparent, slightly included clarity that refracts light beautifully, rather than hiding it behind cloudiness or dense inclusions. The excellent polish is another differentiator, because a well polished slice retains visual appeal when set in a pendant or displayed as a collector specimen, whereas rough finished pieces or poorly polished slices can look dull and do not showcase the internal watermelon zoning. For buyers who want a genuine, natural statement piece without the uncertainty of enhancements, this Mozambique slice is a superior choice.

For designers and collectors deciding between similarly marketed stones, consider the practical and aesthetic benefits this watermelon tourmaline delivers. At 16.52 carat and approximately 20.86 x 18.50 x 4.51 mm, it is large enough to become the focal point of a bespoke jewelry commission, such as a bezel set pendant, an open backed mount that allows light to traverse the slice, or an illustrative museum style setting for collectors. Its slight inclusions provide internal texture and intrigue, offering a unique appearance that polished perfection often lacks, and these inclusions do not undermine durability in typical gemstone settings. Because the stone is natural and unenhanced, its value remains stable and traceable, unlike dyed or otherwise altered material that can fade or react to cleaning over time. Origin from Mozambique is meaningful to connoisseurs familiar with the mine to market story, as Mozambique tourmalines frequently combine attractive color zoning with robust crystal integrity, making them more dependable for high end wearable pieces than many sources that produce heavily fractured material.

When you choose this watermelon tourmaline from The Natural Gemstone Company you are selecting a piece that is rare in its combination of transparency, size, unenhanced natural color, and expert polish, attributes that make it superior to many common alternatives in the market. We support the provenance of our material and can assist with imagery and handling advice for both setting and display, helping jewelers achieve designs that highlight the vivid pink nucleus and the delicate surrounding rim. For collectors seeking an authentic Mozambique specimen that will retain interest and value, and for designers looking for a striking centerpiece ready for creative mounting, this tourmaline is an exceptional option. Please contact The Natural Gemstone Company for additional photographs, viewing under different lighting conditions, or guidance on setting approaches that will best showcase this unique watermelon tourmaline slice.