1.02 Ct. Pinkish Purple Spinel from Burma (Myanmar)

This offering from The Natural Gemstone Company is a transparent 1.02 carat cushion shape pinkish purple spinel, precisely measured at 6.37 x 5.73 x 3.16 mm, faceted and finished with a mixed brilliant cut. The proportions yield a total depth of about 52 percent, a specification that contributes to balanced light return and controlled face up size for the given weight. The cutting style is a mixed brilliant, combining a faceted crown architecture designed to disperse light with a pavilion geometry tuned to optimize internal reflections. Clarity is graded eye clean at standard eye level examination, color intensity is intense with full saturation across the table, and the polish is excellent. The stone is natural and untreated, no enhancement reported, and its documented origin is Burma Myanmar, a provenance that aligns with historically prized chromium bearing material. These baseline data points establish the spinel as a finely executed, high quality specimen suitable for collectors and high end jewelry applications.

The mixed brilliant faceting on this cushion shaped spinel is executed to emphasize both brightness and scintillation. The crown displays a network of star facets and bezel facets that meet at a controlled table, promoting broad flash and dispersion of white light, while the pavilion employs secondary facets arranged to generate dynamic facet intersections under movement. This combination creates contrast patterns that are visible as both larger flashes and smaller pin point scintillation, depending on viewing distance and movement speed. The excellent polish minimizes surface scattering, so light enters and exits with minimal diffusion, enhancing perceived clarity and saturation. The girdle is carefully controlled for mounting, and the culet is proportioned to avoid light leakage, preserving the gem s internal return. Craftsmanship details such as precise facet junction alignment, uniform facet symmetry, and crisp facet edges are evident under 10 power loupe inspection, attributes that materially influence optical performance and overall value.

Chromatically the gem reads pinkish purple, a balance between warm pink and cool violet that yields a distinctly saturated and lively appearance. Spinel color mechanisms in Burmese material are commonly influenced by trace chromium producing rich pink to red hues, with secondary contributions from iron influencing tone and depth. This specimen s intense color intensity and even distribution indicate minimal zoning and a high degree of homogeneity in trace element distribution. Because spinel is isometric and singly refractive, pleochroism is not present as with some other species, so the hue remains consistent across orientations, an advantage for predictable color in finished jewelry settings. The eye clean clarity grade ensures the face up presentation is free of visible inclusions at normal viewing distances, allowing the full color to dominate the visual impression. The absence of any enhancement is an important factor for collectors who prioritize natural state material from classic locales such as Burma Myanmar.

Optical behavior under varied lighting conditions is particularly instructive for this mixed brilliant cushion spinel. In bright daylight with a cool spectral balance the gem exhibits strong overall brilliance and a slightly cooler expression of its pinkish purple hue, with crisp white flashes from the crown facets and controlled internal reflections from the pavilion. Under warm incandescent lighting the stone shifts to a richer, warmer presentation, deepening the pink component and emphasizing saturation while maintaining significant white flash due to the precise facet geometry. Under modern LED lighting the behavior depends on the LED spectral distribution, with broader spectrum or full spectrum LED sources producing a balanced appearance close to daylight, and narrow spectrum warm white LED emphasizing the red pink side of the hue. Spot and directed lighting intensify scintillation and produce concentrated flashes and scintillant pinpoints, useful for display or photographic highlight, while diffuse lighting softens contrast and reveals the gem s even color field, beneficial in jewelry where even color is desired. The spinel s refractive index approximately 1.72 and isotropic optical nature favor strong return of incident light with minimal optical aberration, and the dispersion present yields modest fire that complements the primary body color without overwhelming it.

For buyers considering settings and care the gem s dimensions and proportioning make it well suited to a range of mounting styles from solitaire rings to delicate pendant or stud configurations, where the balanced depth and mixed brilliant cut will deliver consistent performance. The gem s hardness and durability in the context of spinel classification make it appropriate for daily wear when set with protective bezel or prong systems designed for cushion outlines. The Natural Gemstone Company also provides comparative notes on related gem types such as fire opal. A fire opal is an opal variety characterized by warm body colors ranging from vivid yellow to deep orange and red, often transparent to translucent, exhibiting a vitreous to subvitreous luster. Fire opal derives its appearance from body color rather than the play of color that defines precious opal, and it is a hydrated amorphous silica with variable water content, which influences stability and care requirements. Typical Mohs hardness for fire opal is in the range of five and a half to six and a half, so stabilization or careful mounting is advisable for everyday jewelry. Where fire opal offers warm chromatic presence, the Burmese pinkish purple spinel described here offers crystalline transparency, durable wearability, and precision cutting for controlled optical performance, a combination that collectors and connoisseurs will appreciate.