Natural 𝐖𝐡𝐢𝐬𝐤𝐞𝐲 𝐓𝐨𝐩𝐚𝐳 · 12.765 ct · Heart · orangey-brown · Irradiated · Brazil

$5 271.72

Natural Whiskey Topaz weighing 12.765 ct, fashioned in a heart-shaped mixed cut and measuring approximately 13.3 × 13.3 × 9.8 mm. This transparent gemstone displays a rich orangey-brown to cognac colour, VVS clarity and bright vitreous luster, with deeper warm reflections concentrated around the outer facets. Irradiated, with recorded origin Brazil.

1 in stock

NGB Reference: NGB-000819 SKU: FA-TOPAO24WH-002-144 Category: Brand:
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This natural 𝐖𝐡𝐢𝐬𝐤𝐞𝐲 𝐓𝐨𝐩𝐚𝐳 weighs an impressive 𝟏𝟐.𝟕𝟔𝟓 𝐜𝐭 and is fashioned in a substantial heart-shaped mixed cut measuring approximately 𝟏𝟑.𝟑 × 𝟏𝟑.𝟑 × 𝟗.𝟖 𝐦𝐦. The gemstone displays a warm orangey-brown body colour with attractive cognac, copper-brown and subtle reddish-brown reflections that become more pronounced around the outer facets.

The material is transparent and presents a 𝐕𝐕𝐒 𝐜𝐥𝐚𝐫𝐢𝐭𝐲 profile, with only very minor internal characteristics visible under magnification. Its high degree of transparency allows the colour and facet reflections to remain clearly visible throughout the stone.

The heart-shaped outline is well defined and gives the gemstone a strong face-up presence. The mixed-cut facet arrangement produces a combination of broader internal reflections through the centre and deeper, more saturated brown-orange flashes around the perimeter. This contrast creates visual depth and emphasizes the warm whiskey-like colour of the stone.

Topaz is an aluminium fluorosilicate mineral with a hardness of 8 on the Mohs scale and crystallizes in the orthorhombic crystal system. Its naturally vitreous luster contributes strong surface brightness and gives the polished facets a crisp reflective appearance.

The term 𝐖𝐡𝐢𝐬𝐤𝐞𝐲 𝐓𝐨𝐩𝐚𝐳 is a trade colour description referring to the warm brown to orangey-brown appearance of the gemstone rather than a separate mineral variety.

This specimen has been 𝐢𝐫𝐫𝐚𝐝𝐢𝐚𝐭𝐞𝐝, a treatment used to modify or enhance colour in Topaz. The treatment is disclosed transparently as part of the gemstone’s identification.

The recorded origin of this specimen is 𝐁𝐫𝐚𝐳𝐢𝐥, one of the world’s most important sources of gem-quality Topaz.

With its substantial 12.765 ct weight, symmetrical heart presentation, high transparency, VVS clarity and rich orangey-brown whiskey colour, this Topaz offers a distinctive combination of size, warm colour and strong jewellery presence.

Overall Score: 97/100

NGB Grade: Exceptional

Quality Evaluation

Color20.0/20
Clarity19.0/20
Cut19.0/20
Optical Performance19.0/20
Overall Appeal20.0/20

Evaluation Notes

This Whiskey Topaz presents an exceptional overall quality profile, combining substantial 12.765 ct size with high transparency, VVS clarity and a rich orangey-brown to cognac colour.
The gemstone shows very strong visual cleanliness, with only minimal internal characteristics visible under magnification. Its heart-shaped mixed cut is well executed and produces attractive contrast between the lighter central area and the deeper warm brown-orange reflections concentrated around the outer facets.
The large face-up presence, crisp vitreous luster and balanced heart outline contribute strongly to the overall appeal. The irradiated treatment is clearly disclosed and does not detract from the visual quality assessment.

The combination of 𝐬𝐢𝐳𝐞, 𝐕𝐕𝐒 𝐜𝐥𝐚𝐫𝐢𝐭𝐲, 𝐭𝐫𝐚𝐧𝐬𝐩𝐚𝐫𝐞𝐧𝐜𝐲, 𝐜𝐮𝐭 𝐪𝐮𝐚𝐥𝐢𝐭𝐲, 𝐰𝐚𝐫𝐦 𝐰𝐡𝐢𝐬𝐤𝐞𝐲 𝐜𝐨𝐥𝐨𝐮𝐫 and 𝐨𝐯𝐞𝐫𝐚𝐥𝐥 𝐩𝐫𝐞𝐬𝐞𝐧𝐭𝐚𝐭𝐢𝐨𝐧 supports an excellent 𝟗𝟕/𝟏𝟎𝟎 assessment.

Species

Topaz

Gemstone Variety

Topaz

Gemstone Sub-variety

Whiskey Topaz

Color

Brown

Shape

Heart

Cut

Mixed Cut

Treatment

Irradiated

Origin

Brazil

Transparency

Transparent

Gemological Properties

Carat Weight12.765 ct
Dimensions13.3 × 13.3 × 9.8 mm
TransparencyTransparent
ClarityVVS
Refractive Index1.607-1.649 (1631=Brazil)
Specific Gravity3.50-3.57 ( 352-353)
Hardness8 Mohs
Crystal SystemOrthorhombic
LusterVitreous
Color Descriptionwarm orangey brown
Transparency NotesTransparent; assessed together with the specimen-specific clarity and internal characteristics.
Natural CharacteristicsThe Topaz displays 𝐡𝐢𝐠𝐡 𝐭𝐫𝐚𝐧𝐬𝐩𝐚𝐫𝐞𝐧𝐜𝐲 with a 𝐕𝐕𝐒 𝐜𝐥𝐚𝐫𝐢𝐭𝐲 𝐩𝐫𝐨𝐟𝐢𝐥𝐞. Only very minor internal characteristics are visible under magnification, and no prominent inclusions significantly interrupt the face-up appearance. Subtle internal growth features and slight variations in tone are visible within the stone, while the heart-shaped mixed cut produces stronger orangey-brown to cognac reflections around the outer facets and a lighter central appearance. The overall internal structure is relatively clean for a Topaz of this size, allowing the gemstone’s transparency, vitreous luster and warm treated whiskey-brown colour to remain the dominant visual features.

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