Beaded Bracelet with bridge · Onyx · 8mm · black onyx charm bracelet

$25.17

Natural Black Onyx bead bracelet crafted from polished 8 mm beads and finished with a decorative bridge element for a refined, distinctive appearance. Measuring approximately 19 cm with an unstretched internal diameter of 50–55 mm, the bracelet is strung on elastic for comfortable everyday wear. The deep black beads show a smooth polished finish with a waxy to vitreous luster and are supplied in a Gift box.

9 in stock

NGB Reference: NGB-000664 SKU: BR-ONYX026BL-003-281 Categories: , , Brand:
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This elegant Black Onyx charm bracelet is crafted from polished 8 mm natural Onyx beads and finished with a decorative bridge element that gives the bracelet a refined and distinctive appearance.

The beads display the characteristic deep black appearance associated with Black Onyx, combined with a smooth polished surface and an attractive waxy to vitreous luster. Their uniform round form creates a balanced and sophisticated presentation that works equally well as a standalone bracelet or as part of a layered jewellery combination.

Black Onyx belongs to the Chalcedony / Agate family within the Quartz group. Its compact microcrystalline structure allows the material to take a high polish, producing the clean and elegant surface finish that makes it especially suitable for jewellery.

The bracelet is assembled on a flexible elastic cord for comfortable everyday wear. Its standard size measures approximately 19 cm, with an unstretched internal diameter of approximately 50–55 mm.

As with all natural gemstone materials, subtle variations in tone, internal structure and surface appearance may occur between individual beads. These differences are part of the natural character of the material and mean that no two bracelets are completely identical.

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 black colour, polished 8 mm Onyx beads and distinctive bridge detail, this bracelet offers a clean, elegant and versatile appearance. Its understated design makes it suitable for everyday wear while retaining the refined character expected from natural gemstone jewellery.

Overall Score: 91/100

NGB Grade: Excellent

Quality Evaluation

Color19.0/20
Material Quality18.0/20
Natural Characteristics18.0/20
Shape, Symmetry & Polish18.0/20
Overall Appeal18.0/20

Evaluation Notes

This natural Black Onyx bead bracelet presents an **excellent overall quality profile**, combining deep, consistent black colour with good bead uniformity, a smooth polished finish and a refined overall presentation. The approximately **8 mm beads** show attractive surface quality and a pleasant waxy to vitreous luster, while subtle natural variations remain compatible with the character of the material.

The decorative bridge element adds visual interest without disturbing the balance of the bracelet, and the overall construction is harmonious and well suited to everyday jewellery use. The combination of colour consistency, polish quality, bead selection, material authenticity and finished presentation supports an **excellent 91/100 assessment**.

Bracelet Type

Bead Bracelet

Bracelet Length

19 cm

Bead Size

8 mm

Bead Shape

Round With Bridge

Color

Black

Species

Quartz

Gemstone Variety

Chalcedony

Gemstone Sub-variety

Onyx

Transparency

Opaque

Treatment

Dyed

Gemological Properties

TransparencyOpaque
ClarityN/A
Refractive Index1.530–1.540
Specific Gravity2.58–2.64
Hardness6.5–7 Mohs
Crystal SystemTrigonal
Transparency NotesTransparent. The recorded transparency is considered together with the specimen’s individual internal characteristics.
Natural CharacteristicsBlack Onyx may display fine natural banding, subtle tonal variation, cloud-like internal structures, microscopic inclusions, small fissures and locally translucent zones. In highly polished beads, many of these characteristics may only become visible under strong illumination or magnification. The compact cryptocrystalline structure allows the material to accept a high polish, producing the smooth black surface and waxy to vitreous luster characteristic of polished Onyx jewellery. Naturally dark Onyx does occur, but black Chalcedony and Agate are also commonly dyed or otherwise colour-enhanced in the commercial market.

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