立方金丝雀黄钻石 • 不设底价 • 罕见的色彩与形态，具备卓越的 Trigon 特征 - 高度: 3.5 mm - 宽度: 3.5 mm- 0.04 g - (1)

DESCRIPTION:
This natural Canary Yellow diamond 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, further distinguished by the presence of naturally developed Trigons clearly preserved across its original crystal surface. Particularly remarkable are two exceptionally well defined trigons positioned one above the other on one of the cubic faces, creating an immediately recognisable crystallographic feature and giving the specimen an even stronger mineralogical identity.

Trigons are among the most fascinating crystallographic surface features encountered on natural rough diamonds. These triangular structures are associated with natural crystallographic growth and dissolution processes that affected the diamond during its geological evolution. Their characteristic geometry directly reflects the underlying crystallographic symmetry of diamond, effectively preserving visible evidence of processes that occurred naturally within the Earth over immense geological periods.

Their presence is particularly significant from a collector perspective because trigons survive only while the original natural crystal surface remains preserved. Cutting or polishing would permanently eliminate these structures. Clearly recognisable examples therefore add considerable mineralogical and collector interest to an untreated rough diamond, especially when several occur together in such an aesthetically distinctive arrangement. In this specimen, the two prominent trigons positioned one above the other create an exceptional visual sequence, combining rarity, crystallographic significance and natural beauty within the cubic architecture of the crystal.

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 flashes and brilliant yellow highlights that move dynamically across the crystal’s textured surfaces. The trigons themselves become particularly expressive under directional lighting, as their triangular boundaries interact with the surrounding adamantine surfaces and emphasise the crystallographic architecture of the diamond.

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. The coexistence of cubic morphology, natural growth textures and preserved trigons creates an especially rich crystallographic composition within a single untouched crystal.

Recovered from the Marange Diamond Fields in Manicaland Province, Zimbabwe, the specimen remains entirely natural, untreated and unpolished, preserving its cubic morphology, saturated Canary Yellow colouration, original growth architecture and naturally developed trigons in their geological state.

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

SPECIFICATIONS:
• Weight: 0.04 g
• Weight in carats: 0.20 ct
• Dimensions: 3.5 × 3.5 × 3.5 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, reflective growth patterns and naturally developed trigons
• Trigons: Multiple naturally preserved triangular crystallographic features, including two clearly visible trigons positioned one above the other
• 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.

• Naturally developed trigons
The crystal preserves visible triangular crystallographic surface features associated with the natural geological evolution of diamond.

• Exceptional paired trigon formation
One crystal face reveals two particularly attractive trigons positioned one above the other, creating a remarkable geometric sequence clearly visible under magnification.

• Preserved crystallographic evidence
The trigons provide directly observable evidence of natural surface processes experienced by the diamond during its geological history.

• Enhanced mineralogical interest
The coexistence of cubic morphology, complex growth textures and preserved trigons significantly strengthens the crystallographic identity of the specimen.

• 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 brilliant 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 brilliant 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.

• Exceptional macro photographic character
Magnification reveals the trigons, growth structures, surface relief and adamantine reflections with remarkable clarity.

• Compact and balanced proportions
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, trigons 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 already represent a highly attractive niche within rough diamond collecting. The presence of naturally developed trigons introduces an additional crystallographic dimension that substantially strengthens the mineralogical identity of this particular specimen.

Trigons are especially appreciated because they remain visible only while the original natural diamond surface is preserved. They provide a direct visual connection with the crystallographic and geological processes experienced by the diamond and therefore transform the surface itself into a record of its natural history.

This specimen is particularly compelling because several desirable characteristics coexist within the same crystal: recognisable cubic morphology, saturated Canary Yellow colour, strong adamantine lustre, complex natural growth relief and preserved trigons. Particularly noteworthy is the pair of clearly visible trigons positioned one above the other on the same face, creating one of the specimen’s most distinctive crystallographic details.

Collectors especially appreciate rough diamonds where these natural structures can be observed clearly because each preserved surface feature contributes to the individuality of the crystal. No two naturally developed combinations of growth architecture, relief and trigons are exactly identical, giving specimens such as this a strong individual identity.

Its Marange provenance further strengthens its interest as a completely natural coloured diamond from Zimbabwe, while the untouched condition allows its crystallographic characteristics to be studied and appreciated exactly as they occur on the original rough crystal.

LAPIDARY POTENTIAL:
Although the crystal could theoretically yield very small faceted material, cutting would permanently remove precisely the characteristics that make this specimen particularly desirable in its present state.

Its cubic morphology, pronounced natural surface relief, reflective growth structures and especially its preserved trigons would disappear through faceting or polishing. The two clearly visible trigons positioned one above the other are geological features that exist only because the original natural surface remains intact.

Its highest value therefore resides in preservation as a natural collector specimen, where its saturated Canary Yellow colour, compact cubic geometry, exceptional surface architecture and naturally preserved trigons can remain 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.
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