0.90 Ct.Tw.Total Carat Weight Blue Sapphire Pair from Madagascar

This pair of natural blue sapphires presents a balanced combination of transparency, color, and workmanship. The stones weigh 0.42 carats and 0.48 carats respectively, and are round in outline, with dimensions of 3.94 by 3.97 by 3.11 millimeters for the smaller stone, and 3.99 by 3.99 by 3.38 millimeters for the larger stone. Both gems are fashioned in a mixed brilliant cut, a treatment that blends pavilion facet geometry with crown brilliant facets to enhance scintillation and to present the intense blue color as a lively face up appearance. Clarity is graded as very very slightly included, evaluated at eye level, and the overall visual impression is of eye clean material with minute inclusions that do not distract from the gem face. Color is described as vivid in intensity, yielding a saturated, pure blue that remains visually consistent across different viewing angles. The polish on both stones is excellent, contributing to crisp facet junctions and efficient light return. Enhancement is by controlled heat treatment, a stable and industry standard process used to improve color and clarity, and the documented origin for this matched pair is Madagascar.

These sapphires are sourced under The Natural Sapphire Company responsible sourcing program, which prioritizes reduced environmental impact and community engagement at the mine level. Our sourcing partners in Madagascar operate with measures intended to limit habitat disturbance and to manage water use responsibly, including sediment control and water recycling where feasible. Where artisanal and small scale mining is involved, we work to encourage best practice mining techniques that reduce topsoil removal and facilitate progressive land rehabilitation and replanting once extraction in a particular area is complete. Tailings are managed to minimize erosion and downstream turbidity, and the use of hazardous chemicals is avoided in sapphire recovery, in line with local regulation and our supplier code of conduct. We also focus on traceability and transparency in the supply chain, maintaining documented chains of custody from mine site through cutting and polishing, and supporting fair working conditions and community development initiatives in producing regions. These practices are part of our broader commitment to offer gemstones that are responsibly sourced and to provide customers with information about origin, treatment, and the environmental and social measures associated with procurement.

In practical terms, this pair is well suited to fine jewelry applications where matched color and consistent visual weight are desired, such as stud earrings, paired settings, or as accent stones that require color uniformity. The modest size and the mixed brilliant cut make these stones particularly effective for close set designs and for pieces where intense blue saturation is preferred over larger face up footprint. Potential buyers should note the slightly different carat weights and depths, which result in a close but not identical face up scale, and these differences are typical in natural matched sets crafted to maintain color consistency. Routine care is straightforward, using warm soapy water and a soft brush for cleaning, followed by rinsing and gentle drying. Heat treated sapphires are stable under normal wear conditions, however we recommend professional inspection before any jewelry repair or resizing to avoid exposure to extreme localized heat. The Natural Sapphire Company provides full disclosure of origin and enhancement status with each purchase, along with detailed measurements and imagery to assist in design and mounting decisions, and our gemological team is available to answer technical questions about these stones and their suitability for specific settings.