3.87 Ct. Ruby from Mozambique

This transparent 3.87 carat cushion shaped ruby presents as a refined and substantial single gemstone, suitable for a primary center stone in a high end jewellery setting. The gem measures 10.90 by 8.83 by 4.51 millimetres, and its proportions yield a commanding visual footprint without overwhelming classic mounting styles. Cut in a faceted mixed brilliant arrangement, the pavilion and crown facets are balanced to enhance internal fire and overall brilliance, while the cushion outline retains a timeless silhouette. Colour is described as vivid in intensity, providing a saturated and lively red that reads strongly both in direct light and in softer indoor illumination. Clarity is graded as slightly included when evaluated at eye level, and the stone remains transparent with internal characteristics that are discernible on close inspection, yet do not prevent the ruby from delivering a bold and clear colour presence. The polish on the facet junctions and table plane is excellent, supporting clean light return and a refined surface presentation. This ruby is of Mozambican origin and has undergone heating with residue, a common and accepted enhancement that stabilises tone and improves apparent clarity, and these treatment details are disclosed to support informed evaluation.

The size and clarity of this ruby make it particularly well suited to a statement piece where a single stone must command attention and carry the design. At nearly 11 by 9 millimetres and 3.87 carats, the gem occupies the visual scale associated with cocktail rings, solitary pendant mounts, and bespoke cluster compositions that place emphasis on an individual centre gem. The cushion shape offers an ample table and rounded shoulders that interact favorably with prong and bezel settings, allowing the vivid colour to present across a broad surface area. The mixed brilliant cutting style concentrates light back through the table for a lively face up appearance, while the transparent body colour ensures saturation rather than darkness, supporting the piece as an immediate focal point from several viewing angles. Slight inclusions, identified at eye level, contribute to the natural character of the stone and, depending on placement within a setting, can be rendered less conspicuous to the observer, while still providing the gem with internal features that are consistent with natural origins and traditional gemological expectations.

For design and setting considerations, the depth of 4.51 millimetres should be accommodated with a mounting that supports the stone securely while respecting its pavilion depth and facet architecture. Prong settings will maximise visible table area and allow more light access to the lower facets, while a well executed bezel can offer a modern, protective presentation that preserves the cushion outline and secures the stone for everyday wear. Due to its vivid colour and size, this ruby performs exceptionally as the focal point of a solitary ring, but it is equally effective as the central element of a halo or three stone composition where complementary diamonds or coloured stones can be calibrated to enhance hue and perceived size. The Natural Ruby Company provides provenance and treatment disclosure, and this ruby is described with transparent technical information to assist jewellers and collectors in planning mounts, measurements, and finishing work. Independent gemological documentation is recommended for permanent records and for inclusion with finished pieces, to preserve the value and to ensure clarity regarding origin and enhancement history.