「ブラックパール」ダイヤモンド • 保留なし価格 • 希少な色と形態 - Height: 4.5 mm - Width: 4.5 mm- 0.13 g - (1)

DESCRIPTION:
Like a black pearl lifted from the depths of the ocean and captured in adamantine crystalline form, this remarkable natural diamond immediately commands attention through its rounded shape, deep body colour and highly distinctive surface character. Its visual identity is compact, powerful and unusually refined for a rough specimen, giving the stone an unmistakable presence from the very first glance.

The diamond is defined by an intense deep black appearance that remains stable and highly expressive across the entire body. Rather than relying on transparency or internal fire, it reveals its beauty through density, contrast and the way light interacts with its natural exterior. Under direct illumination, the surface releases sharp metallic flashes in silver grey to graphite tones, creating a striking dialogue between darkness and brilliance.

Its morphology is especially appealing. The crystal presents a naturally rounded shape with a near spherical balance, giving it a harmonious and sculptural form rarely encountered in rough diamonds. This rounded geometry is precisely what gives the specimen its strong “Black Pearl Diamond” identity, as the silhouette evokes the compact elegance and quiet authority of a fine black pearl, yet expressed here through mineral structure and adamantine lustre.

The surface preserves a complex network of natural crystalline textures and irregular reflective planes formed entirely during geological growth. These untouched features provide depth, movement and authenticity, while also enhancing the stone’s response to light. As the diamond is rotated, different zones catch the light with varying intensity, producing a dynamic and highly photogenic visual effect.

Although opaque, the specimen is far from visually static. Its appeal lies in the concentration of colour and the energetic behaviour of its lustre across the outer structure. The contrast between the dense black body and the directional metallic reflections gives the stone an unusually sophisticated appearance, elevating it well beyond the character of an ordinary rough diamond.

According to the provenance information transmitted by the previous collector, the specimen originates from Lunda Norte, Angola. Preserved in its complete natural state, it combines rounded morphology, intense black colour, strong adamantine to metallic lustre and excellent sculptural balance in a rough diamond of highly individual collector character.

SPECIFICATIONS:
• Weight: 0.13 g
• Weight in carats: 0.65 ct
• Dimensions: 4.5 × 4.5 × 4.5 mm
• Origin: Lunda Norte, Angola, according to the provenance information transmitted by the previous collector
• Gem material: Natural diamond
• Crystal form: Natural rough diamond
• Morphology: Naturally rounded compact crystal, near spherical shape
• Colour: Deep black
• Colour distribution: Uniform
• Transparency: Opaque
• Lustre: Adamantine with metallic reflections
• Surface features: Natural crystalline growth textures and irregular reflective planes
• Internal structure: Dense compact crystalline formation
• Treatment: Natural, but not laboratory tested
• Condition: Natural, unpolished rough diamond
• Documentation: This diamond is not accompanied by any type of document.

NOTABLE POINTS:
• Intense Deep Black Colour
The specimen displays a strong and uniform black appearance with excellent visual density.
• Naturally Rounded Morphology
Its near spherical compact form creates a harmonious and highly distinctive natural silhouette.
• Strong Black Pearl Visual Identity
The rounded shape and dark lustre give the diamond an appearance reminiscent of a fine black pearl.
• Metallic Adamantine Lustre
Under direct light, the surface releases sharp silver grey and graphite reflections of great visual impact.
• Excellent Sculptural Presence
The compact three dimensional form gives the stone a refined and balanced collector presentation.
• Complex Natural Surface Textures
Untouched crystalline growth structures create depth, movement and strong mineralogical authenticity.
• Dynamic Light Interaction
The irregular reflective planes respond actively to changing angles of illumination.
• Fully Preserved Natural State
The specimen remains uncut, unpolished and structurally faithful to its original geological formation.
• Highly Photogenic Character
Its contrast between deep black body colour and metallic flashes makes it especially attractive under controlled lighting.
• Distinct Collector Appeal
Morphology, colour and reflective behaviour combine to create a rough diamond with immediate individuality.

COLLECTOR’S INTEREST:
Natural black diamonds occupy a very distinctive place within the world of rough diamond collecting because their appeal is driven less by transparency and more by morphology, texture and surface behaviour. This specimen is particularly compelling thanks to its naturally rounded form, which is far less common and gives the piece an elegant and memorable identity.

Its resemblance to a black pearl further strengthens its uniqueness, while the metallic adamantine reflections add a refined visual energy that changes with orientation and light. For collectors of natural coloured diamonds, unusual crystal habits and rough gemstones with strong personality, this is a highly attractive and characterful example.

LAPIDARY POTENTIAL:
This natural rough diamond may offer potential for jewellery design, polishing, faceting or preservation in its original form. However, as the origin, distribution and stability of the colour have not been laboratory determined, colour retention during cutting, polishing or any other lapidary procedure cannot be guaranteed. Any lapidary work should be assessed and carried out by a qualified professional, taking into consideration the internal structure, inclusions and colour distribution of the specimen.

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Shipping and Handling:
All orders are shipped by Portuguese National Post and UPS
• Dispatch time: within 1 to 3 business days after payment confirmation to Catawiki
• Transit time service: between 2 to 5 business days within europe and worldwide, depending on destination national post.
• A tracking number is always provided

Photography and transparency:
All photographs are taken under controlled lighting conditions using a macro lens, carefully selected to present each specimen as accurately as possible.
No filters, colour enhancement, or artificial saturation are applied.
The lighting setup uses a calibrated 5500K light source, replicating neutral daylight to reveal natural tones, surface features, and internal characteristics. Under warmer or weaker indoor lighting, colours may appear slightly different, which is normal.
The purpose of this photographic process is documentation and representation, not visual enhancement. Images are intended to reflect the specimen faithfully as it appears under balanced natural light conditions.

Identification and ethics:
All specimens offered are natural and described to the best of our knowledge, based on direct sourcing, professional experience, and information provided by trusted suppliers working at the origin.
Every effort is made to ensure transparency and accuracy regarding identification, locality, and general characteristics, avoiding misleading statements about treatment, provenance, or nature.

Customs and import taxes:
Any customs duties, import fees, or local taxes applied by the destination country are entirely the responsibility of the winning bidder.
These charges are not included in the auction price or shipping cost and are determined by the buyer’s local authorities.

Guarantee and resolution:
Customer satisfaction is important. In the unlikely event of an issue such as loss, damage, or discrepancy, please contact us promptly through Catawiki’s messaging system.
Each case is handled individually and fairly, with appropriate solutions offered when justified.

Appreciation and commitment:
We sincerely thank you for your trust. Our work focuses on careful selection, accurate representation, and respectful presentation of mineral specimens with character and interest.
Each piece is chosen for its individual qualities rather than speculative or financial considerations. We aim to provide a transparent, reliable, and consistent experience for collectors at all levels.

With gratitude,
GemPulse Minerals