White & Green Onyx Marble Chess Set — 12-Inch | Handmade Natural Stone

This white and green onyx marble chess set is hand-carved from natural white marble and genuine green onyx — the rarest stone variety in the RADICALn collection — in a compact 12-inch board that makes green onyx accessible at $99.50. The same translucent, multi-tonal stone. The same handmade craft. A size that fits where the 15-inch cannot.

12-inch board  ·  32 hand-polished natural stone pieces  ·  King 3 in  ·  7.3 lbs  ·  No storage box  ·  Free US shipping  ·  30-day returns

What's Included in This White & Green Onyx Marble Chess Set

• 1 × 12-inch white and green onyx marble chess board — hand-cut from natural white marble with green onyx squares inlaid across the playing surface, solid slab construction at 0.04 inches thickness, with an attached felt base to protect your table surface
• 32 × hand-carved natural stone chess pieces — 2 Kings, 2 Queens, 4 Bishops, 4 Knights, 4 Rooks, and 16 Pawns — 16 pieces in bright white marble and 16 in natural green onyx — each individually hand-carved to Staunton form and hand-polished to a smooth finish
• Individual felt bottoms for all 32 pieces — a separate felt bottom packet included for every piece; the board carries an attached felt base
• RADICALn branded secure fragile packaging — purpose-built for natural stone transit
• Piece replacement service — if any piece is ever chipped or damaged, contact us and we will source a matching replacement from the same green onyx or white marble variety

No storage box included. For the 15-inch version with storage box, see the White & Green Onyx 15-inch with Storage Box ($172) →

The Same Rare Green Onyx, the Most Accessible Price in the Collection

Green onyx is a variety of chalcedony — microcrystalline quartz, not standard marble — with a natural semi-translucency that makes the pieces appear to shift between forest green, warm amber, and cream depending on the light source and viewing angle. It is the rarest stone in the RADICALn collection and the one that generates the most attention from people who see it in person. The White & Green Onyx 15-inch set with storage box costs $172. The White & Green Antique costs $214.90. This 12-inch set costs $99.50 — making it the most accessible point of entry to genuine green onyx natural stone in the entire collection, at less than half the price of the premium antique version.

The 12-inch size makes this set specifically right for: a desk or home office surface where a 15-inch board would dominate the space; a bookshelf, side table, or bedside surface where a compact natural stone piece works better than a large one; an apartment or smaller room where proportional scale matters; and as a first green onyx chess set for buyers who want to experience the stone before committing to the larger size.

Built for Desks, Compact Spaces, and First Encounters with Green Onyx

On a work desk, the 12-inch green onyx board is the kind of object that makes people stop and ask what it is. The multi-tonal stone — changing from forest green to warm amber as the light shifts through the day — is visually engaging in a way that black and white marble, however beautiful, is not. On a bookshelf or side table, the smaller board is proportionally appropriate in a way the 15-inch set is not. For buyers who are drawn to green onyx but are not yet ready for the 15-inch investment, the 12-inch at $99.50 is the natural first step.

As a gift, the 12-inch green onyx chess set sits at the under-$100 price point while delivering the rarest stone in the collection. It is an excellent birthday gift for a chess enthusiast who appreciates unusual natural materials, a distinctive desk gift for a colleague, boss, or professional relationship, a memorable Father's Day gift that tells a story about geological rarity, and a perfectly scaled housewarming present for a compact home or apartment where natural stone quality matters but available surface space is limited.

Materials & Craftsmanship — Green Onyx and White Marble, 12-Inch Scale

Green onyx is a variety of chalcedony — microcrystalline quartz — that forms in geological bands producing a characteristic multi-tonal coloring: forest green as the base tone, warming to amber, cream, and occasional orange-red depending on the specific section of stone. The stone is naturally semi-translucent — light penetrates it rather than simply reflecting from the surface, giving green onyx pieces a depth of color that changes with the viewing angle and light source throughout the day. No two green onyx pieces in any set carry the same tonal combination, because each piece is cut from a different section of the stone's banding.

The white pieces and white board squares are carved from natural white marble, providing the clean, bright contrast that allows the green onyx tones to read fully. Each board is hand-cut from solid stone and squared by hand. Every piece is individually hand-carved to Staunton form at the 12-inch scale — the King stands at 3 inches, proportionally sized for comfortable handling on the compact board — and hand-polished after carving. The green onyx color variation in your set will differ from the product photography because the specific banding cross-section of each piece depends on where it was cut from the original stone block. Your set's specific tonal arrangement is unique.

Specifications

How to Care for Your White & Green Onyx Marble Chess Set

• Cleaning: Wipe board and pieces with a slightly damp soft cloth and dry immediately. Do not leave water sitting on the green onyx surfaces — the stone is porous enough to absorb moisture over time despite being harder than standard marble.
• What to avoid: Never use acid-based cleaners — vinegar, lemon juice, bleach, or standard household sprays permanently damage both green onyx and white marble. Use only a dry cloth for regular maintenance or a pH-neutral stone cleaner.
• Preserving the green onyx tone: The multi-tonal green, amber, and cream tones of green onyx can shift with prolonged direct sunlight. UV exposure causes gradual color change in translucent stone varieties more visibly than in opaque stones. Position the board away from direct window light for long-term tonal preservation.
• Storage: Store pieces separated in soft cloth bags between uses to prevent contact scratching between the green onyx and white marble pieces.
• Handling: Green onyx is harder than standard marble but can fracture if dropped from height. Contact us if a piece is damaged — our replacement service will source a matching green onyx or white marble replacement.

Perfect For

• Birthday gift under $100 — the rarest stone in the RADICALn collection at the most accessible price; the green onyx story gives the gift scientific and geological depth at a price point that works for birthdays at any age
• Father's Day — for a chess-playing father who appreciates rare natural materials; the green onyx light behavior — shifting tones through the day — gives the gift a dimension that standard marble chess sets cannot offer
• Desk and home office display — the 12-inch board fits comfortably on a work desk or home office surface; the multi-tonal green onyx is the most visually engaging natural stone at any desk size
• Housewarming — compact living — for apartments and smaller homes where scale matters; green onyx in the 12-inch size delivers rare stone quality without requiring a large display surface
• Christmas gift — the deep forest green of green onyx has natural seasonal resonance; a $99.50 premium natural stone gift that is specific, unusual, and permanently valuable
• Graduation — for the chess player or natural science enthusiast moving into their first home or workspace; a rare geological object at an accessible price
• Valentine's Day — for a partner who appreciates the unusual and the natural; green onyx's shifting tones make it the most visually dynamic stone in the collection
• Corporate desk gift — for colleagues, clients, and professional relationships where the gift should be functional, premium, and compact; green onyx on a desk communicates informed material taste
• New Year self-purchase — the most accessible entry point to genuine green onyx in the RADICALn collection; the natural first step before the 15-inch sizes
• St. Patrick's Day — the most naturally aligned chess set in the collection for the occasion; genuine green onyx at an accessible price point for a seasonally resonant gift
• Easter and spring — the forest green of green onyx is one of the most naturally spring-aligned stone colors; a distinctive natural stone gift at the under-$100 tier
• Natural stone and mineral collectors — genuine chalcedony specimens carved into Staunton chess pieces; a meaningful gift for geology enthusiasts at an accessible entry price

Explore the Full Green Onyx Range

• Ready to upgrade to 15 inches?
  • Green Onyx & White 15-inch Standard Set ($125.90) →
  • White & Green Onyx 15-inch with Storage Box ($172) →
• Want the premium antique finish? See the White & Green Antique 15-inch Set ($214.90) → — our highest-specification product
• Browse other 12-inch sets:
  • Black & White 12-inch ($99.50) →
  • Black & Fossil Coral 12-inch ($99.90) →
  • Oceanic Grey & White 12-inch ($99.50) →
• Browse the full collection: All Marble Chess Sets →  ·  All Board Games →

The white and green onyx marble chess set in the 12-inch size is the most accessible way to own genuine green onyx in the RADICALn collection — the same chalcedony stone that shifts from forest green to amber in changing light, the same handmade craft, the same white marble contrast, in a compact board at $99.50 with free US shipping and a 30-day return guarantee. If you have questions about the green onyx stone, how the 12-inch compares to the 15-inch, or whether this size suits a specific surface or gifting occasion — contact us directly. We know every set we make.