Natural Zircon · 0.35 ct · Round · Brilliant Cut · Unheated · Thailand

This individually documented natural Zircon is presented by Natural Gems Belgium with its specimen-specific identification, measurements and recorded gemmological characteristics. Weighing 0.35 carats, this gemstone displays a distinctive deep orangy reddish-brown colour, combining warm orange and red undertones within a rich brown body colour.

The stone has been fashioned into a classic round shape with a brilliant cut, allowing its natural optical properties to contribute to an attractive interplay of brilliance and colour. Measuring approximately 3.8 × 3.7 × 2.5 mm, it is a compact yet characterful natural gemstone with transparent appearance and SI clarity.

This Zircon is recorded as unheated and untreated, meaning that no heat treatment or other enhancement has been documented for this specimen. Its recorded origin is Thailand, a source historically associated with naturally occurring zircon in a variety of brown, reddish, orange and other colour ranges.

Natural Zircon is a distinct mineral species and should not be confused with synthetic cubic zirconia. Zircon crystallises in the tetragonal crystal system and possesses relatively high optical properties. This specimen is documented within an intermediate refractive-index range of approximately 1.85–1.93 and with a recorded specific gravity of approximately 4.60.

One of Zircon’s notable gemmological characteristics is its relatively strong dispersion, recorded here at approximately 0.039. Dispersion describes the separation of white light into its spectral colours and can contribute to flashes of spectral colour when the gemstone is appropriately cut and illuminated. Together with its vitreous lustre, this gives well-cut transparent Zircon its characteristic lively optical appearance.

As a natural gemstone with SI clarity, internal inclusions and other natural features may be visible, particularly under magnification. Subtle colour zoning, growth characteristics and minor surface-reaching features may also occur as part of the individual formation history of the crystal.

Every gemstone presented by Natural Gems Belgium is individually documented according to its recorded identification and specimen-specific characteristics. Natural inclusions, colour zoning and surface features may occur and contribute to the unique character of natural gemstone material.

With its unheated and untreated status, warm deep orangy reddish-brown colour and characteristic Zircon optical properties, this 0.35 ct specimen offers an interesting combination of natural character, brilliance and gemmological interest for collectors or jewellery use.