Natural star sapphire rough – Blue-gray color zoning with a fascinating light effect - 47.60 ct, from Kenya- 9.52 g

This extraordinary Star Sapphire appears as a largely natural rough stone with a striking, nearly hexagonal basic shape. Its coloring ranges from cool blue-gray to dove blue and subtly violet-gray nuances, with the varying light transmission giving the piece remarkable optical depth.

Already under normal lighting, numerous fine structures, growth zones, and natural inclusions are visible inside. The surface still clearly preserves the crystal's original character. Small matrix remnants and mineral adherences along the edge areas form an appealing contrast to the blue-shimmering corundum.

The appearance changes especially impressively under strong, targeted lighting or transmitted light. Then the previously more muted blues come to life and reach, in places, an intense, luminous sky blue to royal blue. At the same time, the different internal zones become visible, giving the crystal an almost spatial effect.

The designation Star Sapphire refers to the so-called asterism, an optical phenomenon that can arise from finely aligned needle-like inclusions in corundum. With appropriately oriented material, and especially after a suitable cabochon cut, a star-shaped light spot can appear under a point light source. Precisely rough material with such internal structures is therefore mineralogically and lapidarily particularly interesting.

Metaphysically, sapphire has traditionally been associated with mental clarity, concentration, and inner calm. Star sapphires are also often attributed with protective and guiding symbolism.

A characterful collectible piece, especially fascinating due to the contrast between its restrained blue-gray appearance and the intense blue glow under targeted lighting.

Weight: 47.60 ct
Size: 21x19x10mm
Origin: Kenya
Treatment: Untreated / Unheated

The lots were photographed under professional lights. Please note that the colours might differ depending on the monitor settings and light source.

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as previously given :
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