Inclusion profile
Rare structural continuity for a deep step cut. The body is stable enough to hold broad parallel facets. No visible structural compromise detected under professional loupe examination.
A stepped, architectural black diamond concept for collectors who value rarity, scale, and measurable specification. The Asscher geometry transforms the stone into a spatial object — a controlled void in the finest tradition of abstract art.
Acquisition level
From $31,000
Custody option and insurance valuation support included.
Rarity index
96/100
Technical dossier
Stone specifications
- Carat
- 12.70 ct
- Dimensions
- 14.0 × 14.0 × 10.2 mm
- Cut
- Asscher-inspired step cut
- Hardness
- 10 (Mohs)
- Surface luster
- Metallic, mirror-like under directional light
- Treatment
- None — natural color
Setting & mounting
- Setting
- Removable high-jewelry mount
- Metal
- Platinum and 18K yellow gold architecture
- Origin
- Collector-grade black diamond
- Certification
- Full gemological report + custody option
Gemological certificate
In-depth analysis
Light behavior
Hypnotic corridor reflections. The stone organizes light into dark geometric chambers rather than sparkle points. It is among the most deliberately architectural light behaviors in the collection.
Provenance and certification
A candidate for vaulting, exhibition, and formal wear because the mount can be separated from the stone. Full chain-of-custody documentation available.
Wearability profile
Best reserved for controlled wear. The piece prioritizes presence and value over casual ergonomics. The removable mount allows the stone to be stored separately when not worn.
Care and handling
Handle with gloves during inspection. Recheck removable mount tension after every formal event. Annual professional inspection mandatory for custody documentation.
Investment note
Rarity index 96/100. This stone represents one of the highest-tier natural black diamonds in active circulation. Supply at this carat weight and cut quality is measured in single digits globally.
Curatorial analysis
Asscher language makes black diamond feel deliberate: measured, structural, and less trend-dependent.
The removable mount creates a bridge between jewelry, private vaulting, and exhibition display.
This is the most investment-coded piece in the catalog and should feel almost institutional on the page.
Acquisition notes
Custody option available
Insurance valuation support
Lead time: by allocation
Origin
Collector-grade black diamond
Image referencePexels