1.67 Ct. Purple Amethyst from Brazil

This 1.67 carat oval purple amethyst from Brazil presents a compelling combination of precise cutting and natural character, offered by The Natural Gemstone Company. The gem measures 9.06 x 7.07 x 4.68 mm, and its mixed brilliant cut marries a faceted crown designed for scintillation with a pavilion that emphasizes light return. Transparency is excellent, with a clarity grade of slightly included when evaluated at eye level, and the color intensity is vivid, producing a deep, saturated purple that reads strongly in both natural and controlled lighting. No enhancement has been applied to alter color or clarity, and the excellent polish enhances both surface smoothness and faceted crispness, resulting in sharp facet junctions and clean reflections. The proportions have been executed to balance depth and spread, yielding a pleasing face up size while maintaining optical performance.

The mixed brilliant cut on this oval amethyst reflects deliberate craftsmanship, combining a stepped or modified pavilion geometry with brilliant style facets on the crown, to control contrast and preserve color saturation. The crown facets are arranged to optimize scintillation, breaking incident light into lively flashes, while the pavilion facet arrangement is tuned to return light through the table for maximum visual weight. The oval outline has been carefully formed to maintain symmetry, with length to width ratio tuned to 1.28 to 1.29, producing a classic oval silhouette that sits attractively in most jewelry settings. The girdle appears even and neither excessively thin nor faceted to the point of structural risk, which supports ease of setting with common prong and bezel techniques. The excellent polish indicates final lap work performed with fine abrasives, reducing surface graining and ensuring that facet planes act as efficient mirrors, increasing apparent brilliance and making even slight internal features easier to read under magnification.

Color in this specimen is a highlight, with a vivid intensity that speaks to the Brazilian provenance, known for producing saturated amethyst hues. The dominant hue is a rich violet purple, with subtle secondary tones that can shift toward warmer reddish violet in some viewing angles and toward cooler bluish violet in others. This subtle shift is a function of the stone chemistry and crystal lattice orientation, combined with the mixed brilliant facet arrangement which controls how light interacts with different zones of the crystal. Color distribution across the table is strong, with only minimal localization of tone, meaning the gem presents a consistently deep face up color without large light windows. The saturation level produces a visually dense purple that maintains brightness without appearing black in deeper pavilion areas, an important balance for mounted gems. The cutter has oriented the stone to take advantage of the most saturated crystal direction, so the face up appearance is bold, and the stone displays pleasing internal reflections and a lively play of color when the piece is moved.

Clarity in this amethyst is graded slightly included at eye level, and those inclusions serve as a fingerprint, a set of microscopic and modestly visible features that contribute to the gem story and identification. Typical inclusions in natural amethyst include minute mineral crystals, thin acicular needles, tiny feathers or internal fissures, and occasional two phase or fluid inclusions, and this stone exhibits subtle internal features consistent with natural growth, rather than the more intrusive patterns associated with heavy treatment. The inclusions are small and dispersed, they do not materially detract from transparency, and they add depth and individuality when examined under magnification. For collectors and experienced buyers, these inclusions can be useful markers of origin, growth environment, and cutting decisions, and they enhance the gem provenance without compromising durability or visual appeal. Because there has been no enhancement, these internal characteristics remain unaltered, and they can be relied upon as natural identifiers. This amethyst is ideally suited for a variety of jewelry applications, from a center stone in a refined ring to a dramatic pendant, and the dimensions and visual weight lend themselves to classic mounting styles. For purchasers seeking a high quality, natural, and characterful purple amethyst, The Natural Gemstone Company offers this stone with full disclosure of its attributes, and our gem specialists are available to advise on settings and certification options.