Lot 32

Schatting :

900/1200 €

Toewijzing :

850 €
Color change oval spinel of 3,07 ct. From purple blue to pinkish purple, the color change already reveals itself when we move the stone. A light veil crosses the gemstone. Mysterious color with glittering. Few graining. 
ALGT Report nr. 61201533 of 28 April 2021. 
Dimensions : 10.14 x 7.46 x 4.74 mm.

Expert notes:
Close to the table, we can identify small inclusions conveying a black color on an inclined surface. It may probably be small (non-tested) protogenetic zircons surrounded by halos. The gemologic vocabulary seems hermetic, yet the explanation is simple. A spinel has formed itself in a conducive environment while small zircons were already present for several hundreds of millions of years. Two very distant geological eras are reunited in this stone, offering the result of an atypical and sought-after spinel.

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