キュービック・カナリー・イエロー・ダイヤモンド • 最低落札価格なし • 珍しい色と特別なフォルム - Height: 3 mm - Width: 3 mm- 0.04 g - (1)

この自然なカナリ Y黄 diamonds displays a remarkably cubic crystal morphology, a highly distinctive and increasingly uncommon formation among rough diamonds. The crystal preserves a naturally balanced cubic structure with pronounced relief, sharply defined growth architecture and exceptional surface character, giving the specimen a strong mineralogical identity immediately recognisable from every angle.

Its colour is dominated by a highly saturated Canary Yellow tone, presenting a bright, pure and concentrated chromatic presence that remains immediately visible under ambient illumination. Rather than leaning toward deeper honey or golden shades, the crystal expresses the characteristic vivid lemon yellow appearance associated with Canary Yellow diamonds. When exposed to transmitted or stronger direct lighting, the colour becomes even more luminous, intensifying into a brilliant radiant yellow that enhances the crystal’s optical vitality.

The surface structure is particularly striking. Dense natural growth textures cover the cubic faces and edges, producing a highly articulated micro relief composed of interlocking crystalline formations and reflective granular patterns. These natural features create continuous interaction with light, generating fragmented adamantine reflections across the specimen without any polishing or artificial enhancement.

The lustre is exceptionally expressive for a rough diamond of this morphology. Multiple reflective planes activate simultaneously under illumination, producing sharp metallic flashes and bright yellow highlights that move dynamically across the crystal’s textured surfaces. This behaviour gives the diamond an energetic and highly photogenic presence while preserving a fully natural appearance.

Unlike smoother or more rounded rough diamonds, this specimen retains a strong architectural geometry. The cubic habit provides visual stability and symmetry, while the elevated surface relief introduces complexity, texture and dimensional depth. Small natural irregularities and internal growth features reinforce the authenticity of the crystal and contribute positively to its collector appeal.

Recovered from the Marange Diamond Fields in Manicaland Province, Zimbabwe, the specimen remains entirely natural, untreated and unpolished, preserving both its rare cubic morphology and its highly desirable Canary Yellow colouration in their original state.

This is not simply a coloured rough diamond. It is a highly aesthetic cubic crystal combining strong geometry, saturated Canary Yellow colour and exceptional natural surface character within a compact and visually powerful specimen.

Specifications:
• Weight: 0.04 g
• Weight in carats: 0.20 ct
• Dimensions: 3 × 3 × 3 mm
• Origin: Marange Diamond Fields, Manicaland Province, Zimbabwe
• Gem material: Natural diamond
• Crystal form: Natural cubic rough diamond
• Morphology: Compact cubic crystal with pronounced surface relief
• Colour: Canary Yellow
• Colour distribution: Naturally distributed saturated yellow colour
• Transparency: Translucent to semi opaque
• Lustre: Strong adamantine lustre
• Surface features: Dense natural crystalline textures and reflective growth patterns
• Optical behaviour: Intensifies into brilliant Canary Yellow under transmitted light
• Condition: Natural, unpolished, untreated

Notable Points:
• Rare natural cubic diamond morphology
The specimen preserves a highly distinctive cubic habit, considerably less common than the classic octahedral forms associated with many natural diamonds.
• Strongly preserved cubic geometry
Its compact and balanced proportions maintain a clearly recognisable architectural structure from multiple viewing angles.
• Saturated Canary Yellow body colour
The crystal displays a bright and concentrated Canary Yellow tone with the characteristic vivid lemon yellow appearance associated with this highly desirable colour expression.
• Dramatic transmitted light response
Under stronger or transmitted illumination, the body colour intensifies into an exceptionally luminous brilliant yellow.
• Highly expressive adamantine lustre
Numerous natural reflective planes produce sharp flashes and bright yellow highlights across the textured crystal surfaces.
• Dense micro crystalline surface relief
Interlocking natural growth formations create pronounced texture, depth and continuous optical activity.
• Fragmented metallic reflections
Elevated micro planes scatter light dynamically, generating concentrated flashes across the crystal without polishing.
• Strong architectural appearance
The combination of cubic geometry and pronounced relief gives the diamond an unusually structured and visually powerful identity.
• Preserved natural growth patterns
Original crystallographic textures remain visible throughout the specimen, documenting its uninterrupted natural formation.
• Compact and balanced proportions
Despite its dimensions, the crystal presents excellent three dimensional stability and immediate visual impact.
• Fully natural untreated condition
No cutting, polishing or artificial enhancement has altered its colour, morphology or surface architecture.
• Zimbabwean provenance
Originating from the Marange Diamond Fields in Manicaland Province, one of Zimbabwe’s principal diamond producing regions.

Collector’s Interest:
Natural cubic diamonds with preserved growth textures and saturated Canary Yellow colouration represent a highly attractive niche within rough diamond collecting. While many rough diamonds appear fragmented, rounded or heavily worn, specimens retaining clear cubic geometry and such a bright yellow chromatic identity are considerably less common and visually distinctive.

This crystal is particularly desirable due to the combination of three defining features: rare cubic morphology, highly expressive adamantine lustre and intense Canary Yellow optical behaviour under illumination. The transformation into an even brighter luminous yellow under transmitted light gives the specimen a dynamic visual identity.

Collectors especially appreciate rough diamonds that preserve authentic natural surfaces and crystallographic structure, as these characteristics provide a direct record of the geological processes responsible for the crystal’s formation. Its Marange provenance further strengthens its interest as a natural coloured diamond from Zimbabwe.

Lapidary Potential:
Although the crystal could theoretically yield very small faceted material, any cutting would remove the defining cubic morphology, the pronounced natural surface relief and the reflective growth textures that give the specimen its unique identity.

Its highest value resides in preservation as a natural collector specimen, where its saturated Canary Yellow colour, compact cubic geometry and exceptional surface character can be fully appreciated in completely unaltered form.

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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.

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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