Beaded Bracelet · Tourmaline · 8 mm beads · High Quality Black tourmaline

$33.51

Natural Black Tourmaline bead bracelet crafted from polished 8 mm beads, displaying a deep natural black colour with subtle structural variation and attractive vitreous luster. The bracelet has an unstretched internal diameter of approximately 50–55 mm and is strung on elastic for comfortable everyday wear. The beads are natural, untreated, not dyed and not painted, and each bracelet is supplied in a Natural Gems Belgium jewellery box.

10 in stock

NGB Reference: NGB-000531 SKU: BR-TOUR026BL-003-557 Categories: , , Brand:
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This refined beaded bracelet is crafted from natural Black Tourmaline, selected for its deep black colour, substantial appearance and attractive polished finish. The approximately 8 mm beads create a balanced and versatile bracelet suitable for everyday wear or combination with other natural gemstone jewellery.

Black Tourmaline belongs to the Tourmaline mineral group and is valued for its characteristic dark coloration and strong visual presence. Individual beads may show subtle natural variations in tone, internal structure and surface texture, reflecting the naturally variable character of the material.

Each bead has been polished to create a smooth surface and an attractive vitreous luster while preserving the natural identity of the gemstone. Depending on the structure of the individual bead, fine natural growth features, minor surface irregularities or subtle internal characteristics may remain visible.

The bracelet is assembled on a flexible elastic cord for comfortable wear. Its standard unstretched internal diameter is approximately 50–55 mm.

The colour is natural and the beads are not dyed or painted. The material is recorded as untreated, with no artificial colour enhancement applied. Because natural gemstones rarely have completely identical colour and structure, slight differences between beads are expected and contribute to the individuality of each bracelet.

Natural Gems Belgium guarantees that the gemstones and gemstone beads used in its jewellery are natural. Each bracelet is supplied in a gift box.

With its deep natural black colour, polished 8 mm beads and strong, understated appearance, this Black Tourmaline bracelet offers a timeless and versatile jewellery design. The natural variations between individual beads ensure that every bracelet retains its own subtle character.

Overall Score: 92/100

NGB Grade: Excellent

Quality Evaluation

Color19.0/20
Material Quality18.0/20
Natural Characteristics18.0/20
Shape, Symmetry & Polish18.0/20
Overall Appeal19.0/20

Evaluation Notes

This natural Black Tourmaline bead bracelet presents an **excellent overall quality profile**, combining deep natural black colour with good bead consistency, strong structural integrity and an attractive polished finish. The approximately **8 mm beads** show a harmonious overall appearance, while subtle natural growth features, fine striations and minor surface variations remain consistent with genuine Black Tourmaline.

The polished surfaces produce a pleasing **vitreous luster**, and the beads maintain good uniformity in size and shape without appearing artificially identical. Because the material is predominantly opaque, quality is assessed primarily through colour consistency, surface condition, polish, bead selection and overall construction rather than internal clarity.

The combination of natural material quality, strong black colour, bead uniformity, polish and overall bracelet presentation supports an **excellent 92/100 assessment**.

Bracelet Type

Bead Bracelet

Bracelet Length

19 cm

Bead Size

8 mm

Bead Shape

Round

Color

Black

Species

Tourmaline

Gemstone Variety

Tourmaline

Gemstone Sub-variety

Black Tourmaline

Treatment

Unheated, Untreated

Transparency

Opaque

Gemological Properties

TransparencyOpaque
ClarityN/A
Refractive Index1.620–1.670
Specific Gravity3.10–3.26
Hardness7–7.5 Mohs
Birefringence0.018–0.040
Crystal SystemTrigonal
Dispersion0.017
LusterVitreous
Color Descriptionnatural (not died/painted) black
Transparency NotesTransparent. The recorded transparency is considered together with the specimen’s individual internal characteristics.
Natural CharacteristicsNatural longitudinal growth features, fine surface striations, minor fissures and subtle structural variations may be visible within the polished Black Tourmaline beads. Because the material is predominantly **opaque**, internal inclusions are not assessed in the same way as in transparent Tourmaline, and greater emphasis is placed on surface condition, bead integrity and polish quality. Slight natural variations in black colour intensity and minor surface irregularities may occur between individual beads and contribute to the authentic character of the bracelet.

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