The Spherical "Concave Base" Nanjiangstone Masterpiece | 43.0mm x 42.0mm | NJS-1208C

This premium single-inventory listing features the exact boutique collector-grade pair of Wenwan walnuts shown in the listing gallery. Stock ID NJS-1208C is an exceptionally rare, premium boutique pair of "Spherical Concave Base" Nanjiangstone (Qiu Xing Ao Di Nan Jiang Shi) walnuts. Exhibiting a beautifully full 43.0mm width and an ergonomic 42.0mm height, this set is distinguished by its nearly round spherical frame and a masterfully recessed concave base gate. The wild-grown set has been fully cured, meticulously brushed, and is ready for high-end international shipment.

• Stock: 1 of 1 (Single Unique Inventory)
• Variety: Spherical Concave-Base Nanjiangstone / Qiu Xing Ao Di Nan Jiang Shi
• Dimensions: 43.0mm (Width) x 42.0mm (Height / Belly Depth)
• Grade: Premium Boutique Class

[About the "Spherical Concave Base" Nanjiangstone Variety]

Nanjiangstone (Nan Jiang Shi) is universally recognized by seasoned connoisseurs as the undisputed heavyweight king of the Lion Head (Shi Zi Tou) lineage, celebrated for its extreme bone hardness, dense rinds, and metallic wood chime. Finding a pair that fuses a "Spherical Round" (Qiu Xing) profile with a distinctly "Concave Base" (Ao Di) gate is an absolute marvel of natural selection. The deeply recessed bottom gate pulls the center of gravity downward, while creating a beautifully hollowed-out aesthetic from below.

This structural phenomenon gives the pair a remarkably robust, stubby feel in the palm. Its spherical frame rolls with fluid, uninterrupted continuity, while the distinctive concave gate allows the walnuts to be nested or manipulated with exquisite control. Coupled with Nanjiangstone's iconic fine-grained ant texture (Ma Yi Wen), it offers a premium grounding experience during hand reflection and meditation.

[Characteristics of NJS-1208C]

• Elite 43mm x 42mm Chubby Spherical Profile: Measuring a substantial 43.0mm wide by 42.0mm high, this pair breaks away from standard high-pile shapes to adopt a thick, beautifully compact outline. This slightly shorter vertical profile sits perfectly inside the palm, providing an optimal grip and an unparalleled sense of fullness during hand rotation.
• Deeply Recessed Bottom Gate (Concave Base): The base gate is sharply hollowed inward, an elite structural marker highly sought after in premium Nanjiangstone strains. This unique trait not only enhances the visual symmetry of the pair from the bottom perspective, but also minimizes friction points when rolling them together in a single-handed sequence.
• High Bone Density & Iconic Crystalline Resonance: Sourced from old-growth wild mountain trees, these timber rinds possess extraordinary thickness with zero internal air pockets. Rotating this premium pair in your hand yields a sharp, glassy, stone-like ring that stands as definitive proof of top-tier fiber density and structural durability.

[Expert Aging & Patina Tip]

True wild Nanjiangstone features a tightly packed, non-porous grain that takes time to absorb skin oils but develops an unmatched jade-like sheen. For the initial stages, keep the pair tucked away in a dry velvet or cotton pouch when resting to allow natural hand oils to spread evenly across all intricate crevices. Always roll with completely clean, bare hands—entirely omitting gloves—to gradually mature the raw timber into a deep, radiant amber-red heirloom patina.

[Specifications]

• Variety: Premium Boutique Spherical Concave-Base Nanjiangstone
• Stock ID: NJS-1208C
• Dimensions: 43.0mm (Width) x 42.0mm (Height)
• Base Features: Beautifully hollowed-out concave base gate with broad, symmetrical shoulders.
• Texture: Intricate, micro-knurled fine ant textures with deep waving channels and crisp lines.
• Best For: Serious collectors seeking an investment-grade, chubby 43mm pair that balances rare concave-base geometry, immense stone weight, and a lifetime patina journey.