17.45 Ct. Amethyst from Brazil

This 17.45 carat oval amethyst from Brazil presents a technically accomplished specimen that will appeal to discerning collectors, The Natural Gemstone Company recommends it as a centerpiece for a high end collection. The gem measures 19.80 x 15.70 x 9.00 mm, yielding a depth of approximately 50.7 percent, a proportion that balances face up spread with internal light return. The crown is executed with a checkerboard faceting scheme, each square facet precisely aligned to produce even scintillation and a faceted table that disperses light across the pavilion. The checkerboard pattern enhances the gem’s medium intense pinkish purple hue, breaking broad color zones into lively flashing that accentuates saturation without creating windowing. Facet junctions are clean and symmetrical, and the girdle meets the pavilion with consistent thickness, evidencing controlled cutting and weight retention priorities.

Clarity is evaluated as eye clean at normal viewing distance, meaning no inclusions are visible to the unaided eye under typical retail lighting, a quality level that complements the gem’s transparency and maximizes brilliance. Surface finish is classified as excellent polish, resulting in crisp facet reflections and strong light return across the checkerboard planes. The piece has been heat treated to stabilize and enhance color, a common and permanent enhancement for amethyst that yields a more desirable pinkish purple tone while preserving the gem’s structural integrity. Optical parameters consistent with natural amethyst apply, and the Brazilian origin is notable for producing material with uniform crystal growth and predictable response to cutting and heating. In practical terms this oval amethyst, with its substantial carat weight and refined faceting, is ideal for a statement ring or a museum quality collection mount, where the checkerboard crown will interact with light to show both broad color depth and dynamic facet scintillation. For the collector seeking a technically refined and visually impactful amethyst, The Natural Gemstone Company presents this stone as a meticulously prepared example of craftsmanship and stable enhancement, ready to be set by a jeweler attentive to proportion and display.