Natural Black Opal · 1.61 ct · Pear · Mixed Cut

 671,70

Natural Black Opal, 1.61 ct, pear shaped with a mixed cut, deep black body colour and a beautiful play-of-colour. ALGT certified.

1 in stock

NGB Reference: NGB-000909 SKU: SL-ASM029OP-151-042 Category: Brand:
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This natural Black Opal is an individually documented 1.61 ct gemstone selected and presented by Natural Gems Belgium. Cut into an elegant pear shape with a mixed cut, the stone combines a deep dark body colour with an attractive play-of-colour that gives the opal its distinctive visual character.

The gemstone measures 13.67 × 7.46 × 3.95 mm and displays a dark brown to black appearance enriched by shifting flashes of colour as the stone is viewed from different angles. This optical effect is one of the defining characteristics that makes natural Black Opal especially appealing and ensures that every specimen has its own individual appearance.

This Black Opal is ALGT certified, providing independent documentation of the gemstone. As with natural gemstone material, inclusions, colour zoning and minor surface characteristics may be present and form part of the stone’s natural identity rather than being considered artificial imperfections.

Overall Score: 84/100

NGB Grade: Very Good

Quality Evaluation

Color17.0/20
Clarity16.0/20
Cut17.0/20
Optical Performance17.0/20
Overall Appeal17.0/20
Species

Opal

Gemstone Variety

Opal

Gemstone Sub-variety

Black Opal

Color

Black

Shape

Pear

Cut

Mixed Cut

Treatment

Smoked

Transparency

Transparent

Optical Phenomenon

Opalescence

Gemological Properties

Carat Weight1.61 ct
Dimensions13.67 × 7.46 × 3.95 mm
TransparencyTransparent
Crystal SystemCubic
Color DescriptionDark Brown + Play of Colors
Transparency NotesTransparent; assessed together with the specimen-specific clarity and internal characteristics.
Natural CharacteristicsNatural specimen-specific internal characteristics.

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