2.27 Ct. Multi Color Crystal/Jelly Opal from Australia

This 2.27 carat oval opal from The Natural Gemstone Company is presented as a technically refined tablet cut specimen, measuring 11.46 by 7.53 by 3.72 millimeters, with an overall profile that emphasizes face up color and surface continuity. The piece is identified as a Crystal Jelly Opal type, with an opaque body characteristic, and displays a multi color play that reads as intense across the visible surface. The tablet cut has been executed to maintain a low domed profile with a broad table, optimizing the visible display of diffraction without introducing excessive facet junctions that can interrupt color patches. The stone is untreated, no enhancement, and carries an Australian origin designation, attributes that are important to specialists who prioritize natural provenance and minimal intervention. The polish is excellent, reflecting precise lapidary finishing that removes tool marks and micro abrasions, while the girdle and edge transitions are controlled to facilitate secure setting without compromising the optical dynamics of the face up plane.

From a cutting and proportion perspective the tablet geometry and oval outline create a face up area that maximizes pattern continuity. With a depth of 3.72 millimeters relative to the length and width, the depth ratio approximates 39 percent when calculated against the mean of the length and width dimensions, a proportion that balances stability with optimal thinness for internal color transmission. The execution of the tablet cut in an opal requires specific lapidary technique, including successive stages of grinding on progressively finer laps and a final high speed felt polishing with cerium oxide to achieve the exceptional polish observed. The cutter has retained sufficient thickness to minimize the risk of crazing while still allowing the three dimensional color patches to be read clearly across the plane. The oval shaping is symmetrical, with controlled curvature that reduces localized stress points, a detail relevant to setters and conservators who will work this opal into jewellery.

Optically the piece demonstrates strong play of color driven by a well organized silica sphere microstructure typical of Crystal Jelly Opal morphology, resulting in diffractive color components that move with changes in viewing angle and lighting. The multi color effect favors bright green and blue dominants with secondary hints of other hues, and the intense color intensity grade is evident in the saturation and contrast against the light opaque body. The tablet cut acts to present broad, continuous color patches rather than small fragmented pinfire, a characteristic that makes this stone read larger and more vibrant face up. Because it is a Crystal Jelly Opal with an opaque body, the internal scattering is moderated, offering a balance between translucency and body tone that enhances color vibrancy without excessive light loss. The excellent polish contributes to superior specular reflection at the surface, which accentuates the visibility of color patches and improves perceived brilliance in both diffuse and direct lighting conditions.

As a collector and design piece this opal functions exceptionally as a centrepiece, with technical attributes that appeal to discerning buyers and designers. The controlled tablet profile and oval outline ease setting choices, where a shallow bezel or low profile prong setting will protect the table while allowing the full color play to present. Given the material properties of opal and this specimen in particular, standard care recommendations apply, including avoidance of ultrasonic cleaning, prolonged exposure to high heat, and aggressive chemical contact, preserving the internal hydrated silica structure and preventing crazing. The Natural Gemstone Company provides the documented measurements, weight, origin, and confirmation of no enhancement, giving confidence in both the material authenticity and the lapidary quality. For a collector seeking a technically precise, visually dynamic opal that functions as a focal element, this 2.27 carat tablet cut Crystal Jelly Opal offers a rare combination of intense color, controlled proportions, and meticulous finish, ready to anchor an elevated jewellery project or an advanced gemstone collection.