1.17 Ct.Tw.Total Carat Weight Swiss Blue Topaz Pair from Ceylon (Sri Lanka)

This matched pair of heart shaped Swiss blue topaz from Ceylon is presented by The Natural Gemstone Company, ideal for collectors and designers who prioritize both gemological precision and visual harmony. The stones weigh 0.62 carats and 0.55 carats respectively, and their measured dimensions are 5.19 by 5.16 by 3.43 millimeters for the larger stone, and 5.07 by 5.06 by 3.17 millimeters for the smaller stone. Both stones have been fashioned as mixed brilliant cuts to optimize return of light from the crown while preserving color saturation through carefully controlled pavilion facets. The color is graded as medium intensity Swiss blue, and the clarity is graded as eye clean when evaluated at normal viewing distances. Enhancement disclosure is provided, the color has been produced by irradiation, and surface finishing has been executed to an excellent polish.

The mixed brilliant faceting scheme employed here combines a brilliant crown with a pavilion that balances modified brilliant and step elements, a configuration chosen to maximize scintillation while maintaining even color distribution across the heart outline. Special attention was given to the geometry of the heart cleft and lobes during cutting, ensuring symmetrical proportions and well defined lobes that are essential for the heart shape to read correctly when set. The depth characteristics differ slightly between the pair, reflecting their individual weights, with the larger specimen exhibiting an average depth of approximately 66.3 percent based on its length and width, and the smaller specimen exhibiting a depth of approximately 62.6 percent. These depth variations account for the weight differential between the 0.62 carat and 0.55 carat pieces, and they also influence the character of light return, with the deeper stone showing a slightly more concentrated color saturation under direct illumination.

Color performance and clarity are central to the presentation of Swiss blue topaz, and these pieces demonstrate a uniform medium blue saturation that is characteristic of well produced irradiated material. The irradiation enhancement used to achieve the Swiss blue tone is a standard and widely accepted treatment for topaz, and it has been applied to produce an even, stable color that responds predictably to standard jewelry lighting. Clarity is described as eye clean, which in practical terms means the stones exhibit no inclusions that are visible to the unaided eye at normal viewing distances, and that any internal features are microscopic or located in regions that do not affect optical performance. The excellent polish and precise facet junctions contribute to crisp facet reflections, allowing the mixed brilliant geometry to deliver both dispersion and return of bright white light, qualities that are particularly desirable in heart shaped gems where symmetry is essential to overall appeal.

From a craftsmanship standpoint, these hearts have been cut to preserve maximum weight while achieving a wearable size that is versatile for paired settings. The slightly different dimensions and depths make them a natural match for designs that favor asymmetrical balance, such as bypass rings and ear studs where a subtle size contrast adds visual interest. For more traditional matched applications like stud earrings, setting techniques that allow for small adjustments in height and angle will ensure that the two stones sit consistently when worn. Prong settings that secure the heart cleft and the lobes will expose the crown facets and enhance brilliance, while low profile bezels will emphasize the outline and offer robust protection for active wear. Given their irradiated enhancement, normal wear precautions apply, and cleaning with warm soapy water and a soft brush is recommended. Ultrasonic cleaning may be used with caution, depending on the mounting and presence of any indented facet junctions, and steam cleaning should be avoided when possible to minimize any risk to the polish or to ancillary materials in a finished piece.

The combination of heart shaping, mixed brilliant faceting, and Sri Lankan origin creates a distinctive offering for buyers seeking exclusivity and technical refinement. Heart shaped matched pairs with this degree of finish and eye clean clarity are relatively uncommon, especially in Swiss blue tone, making this pair well suited to bespoke projects that demand a focal point with both emotional resonance and gemological integrity. The Natural Gemstone Company affirms full disclosure of origin and treatment for these stones, and we welcome inquiries for additional measurements, high resolution imaging, and personalized setting recommendations. For the knowledgeable buyer who values precision in cutting, consistent medium color saturation, and a documented enhancement history, this pair represents a rare opportunity to acquire matched heart shaped Swiss blue topaz with refined optics and reliable wear characteristics.