RADICALn makes two categories of natural stone board games: marble chess sets (complete sets with board, available in 12-inch and 15-inch sizes, from $99.50 to $214.90) and marble checkers sets (complete sets with board, all 15-inch, all $109.50). Both games are also available as pieces-only sets (no board included) from $45.85. All products are hand-carved from genuine natural marble, onyx, or fossil coral stone.

The full collection spans $45.85 to $214.90. Chess and checkers pieces (no board) start from $45.85. Complete 12-inch chess sets start at $99.50. Complete checkers sets are all $109.50. Complete 15-inch chess sets range from $125 to $214.90 depending on size, storage box inclusion, and piece style. Free US shipping on every order.

Both are complete chess sets with board and 32 pieces. The 12-inch sets ($99.50–$99.90) have a 12 × 12 inch board — a more compact size suited to smaller tables and a lower price point. The 15-inch sets ($125–$214.90) have a 15 × 15 inch board — a more substantial, display-forward size with more visual presence. Both use the same stone pairings and the same hand-carving approach.

Seven primary stone pairings run across the collection: Black & White marble (most universal), Green Onyx & White (rarest stone, shifts colour in light), Black & Fossil Coral (genuine ancient fossil patterns), Coral & Red marble (all-warm palette), Oceanic Grey & White (cool Scandinavian tones), Black & Multi Green Onyx (most dramatically banded), and Black & Golden marble. An antique family with medieval figurative pieces is also available in selected chess sets.

For the most broadly accessible gift: a complete checkers set at $109.50 — accessible to all age groups, no learning curve, works as both a game and a coffee table display object. For a chess enthusiast: a 12-inch chess set at $99.50 is the most accessible entry point; a 15-inch chess set from $125 is the more substantial gift. For the premium gifting tier: an antique chess set with storage box from $169.

Yes — every complete chess and checkers set includes both a board and a full set of playing pieces (32 pieces per chess set, 32 discs per checkers set), individual felt bottoms for every piece, a felt base on the board, and RADICALn branded secure fragile packaging. Storage box versions also include a hinged marble storage box. Antique chess sets always include a storage box.

Yes — most buyers display their RADICALn sets in starting position on a coffee table, sideboard, or shelf between games. The natural stone boards and hand-carved pieces function as deliberate home decor objects as well as functional games. A marble chess or checkers set displayed on a coffee table is a conversation piece and design object, not just a game waiting to be played.

Green onyx is a variety of chalcedony — microcrystalline quartz — with a natural semi-translucency that shifts between forest green, amber, and cream depending on the light source and viewing angle. It is harder to source than standard marble and its banded structure makes carving more demanding. It is the rarest stone RADICALn uses and appears in chess sets, checkers sets, and pieces across all price points in the collection.

Fossil coral is a sedimentary stone formed from the compressed remains of ancient coral reef organisms over hundreds of millions of years. The warm beige-tan base with dark brown fossil organism patterns is the natural surface of the stone — no dyes or coatings. Every piece cut from fossil coral carries a unique fossil pattern. It is available in chess sets, checkers sets, and pieces across the collection.

RADICALn's antique chess sets use medieval figurative pieces — the King, Queen, Bishop, Knight, Rook, and Pawn are carved as historical human and architectural figures rather than the abstract Staunton form used in standard sets. Every antique set includes a storage box. They are available in selected stone pairings at $169–$214.90, making them the premium tier of the collection.

Yes — RADICALn sells pieces separately in the Chess & Checkers Pieces collection. Chess pieces are priced from $69 and fit 16 to 20 inch boards. Checkers discs are priced from $45.85 and fit standard 15-inch boards. This is the right option for buyers who already own a board or who need replacement pieces.

The all-warm Coral & Red marble products are the most seasonally aligned for Thanksgiving — fossil coral and red marble tones map directly onto harvest and autumn colours. Available as a Coral & Red Checkers Set ($109.50), in chess sets, and as pieces-only sets from $49.63.

Any product in the Green Onyx family — genuine green chalcedony stone across chess sets (12-inch from $99.50 and 15-inch up to $214.90), checkers sets ($109.50), and pieces from $49.63. The green onyx stone's forest-green base colour aligns directly with the occasion.

Yes — every product in the collection ships free to US addresses. Handling time is 1 to 2 business days; transit time is 3 to 7 business days — total estimated delivery is 4 to 9 business days. Every order is covered by RADICALn's 30-day return policy.

Wipe pieces and board with a slightly damp soft cloth and dry immediately. Never use acid-based cleaners — vinegar, lemon juice, bleach, or standard household products permanently etch polished marble. Never use abrasive cloths. Store pieces in soft cloth bags when not in use to prevent contact scratching. RADICALn offers a piece replacement service — if any piece is lost or damaged, contact us for a matching replacement.

The 12-inch marble chess sets at $99.50 are the most affordable complete chess sets in the collection — full board and 32 pieces in 8 stone colourways.

The White & Green Onyx Antique Chess Set at $214.90 is the highest-priced product in the collection — medieval figurative pieces in the rarest stone RADICALn uses, with a storage box included.

Yes — both chess and checkers are suitable for children from around age 4 and up with adult supervision. Natural stone pieces are heavier than plastic equivalents and require normal careful handling. RADICALn's product copy confirms suitability for all age groups from children to adults. Checkers is the more accessible game for younger players with no learning curve.

Yes — every major stone family in this collection spans multiple product categories. For example, the Black & Fossil Coral family includes a 12-inch chess set, a 15-inch chess set, a 15-inch chess set with storage box, an antique chess set, a checkers set, chess pieces, and checkers pieces — a full matched natural stone game collection from a single stone family, priced from $49.63 to $171.35.

Every RADICALn set is genuinely hand-carved from natural stone — not cast resin, not synthetic composite, not machine-cut. The collection spans two full game categories (chess and checkers) in matched stone families, making it possible to build a coordinated natural stone game collection across both games. RADICALn also offers a piece replacement service, individual felt bottoms for every piece, and purpose-built fragile packaging for every order — consistent quality standards across every product in the range.