Natural Ruby · 1.86 ct · Oval · Purplish Red · Unheated · Tanzania

This natural Ruby weighs 1.86 carats and is fashioned in a classic oval mixed cut, presenting an attractive purplish-red body colour with a transparent appearance and distinctive natural inclusion character.

Measuring approximately 9.2 × 6.5 × 3.1 mm, the gemstone has an elongated oval outline and a relatively broad face-up appearance. The mixed-cut facet arrangement supports colour presentation and surface brightness while retaining the individual structural features of the natural Ruby.

The stone displays a purplish-red colour, combining a predominantly red body tone with visible purple influence. Its transparency allows the internal characteristics to remain clearly observable, contributing to the gemstone’s natural identity.

The clarity falls within approximately the I2–I3 range, with prominent inclusions readily visible within the gemstone. These are described primarily as silk combined with Rutile needles, together with associated growth structures, fissures and other natural internal characteristics. The inclusion density reduces internal cleanliness and optical refinement, but the stone retains its transparent appearance and recognisable Ruby colour.

Ruby is the red gem variety of Corundum (Al₂O₃) and belongs to the trigonal crystal system. With a hardness of 9 on the Mohs scale, it is one of the most durable coloured gemstone materials, although internal fissures and surface-reaching features should always be considered during jewellery setting.

This specimen shows a good cut, fair to good symmetry and good polish, with a good to very good vitreous surface luster. These characteristics support a balanced overall presentation while the inclusion pattern remains the principal limiting factor in optical performance.

A very small chip is present just above the girdle. It is subtle and may be difficult to observe in normal face-up viewing, but it should be taken into account when planning a jewellery setting or handling the gemstone.

There is no indication of heating and no indication of any other treatment. The gemstone is therefore presented with its naturally observed colour and internal characteristics without documented enhancement.

The specimen is recorded as originating from Tanzania and is documented by Natural Gems Belgium.

With its substantial 1.86 ct weight, purplish-red colour, unheated condition and clearly expressed natural inclusion structure, this Ruby offers strong individual character. Its elongated oval form and natural internal features make it an interesting choice for a documented gemstone collection or a carefully considered custom jewellery design.