收藏: Diamond Saw Blades

Our Diamond Saw Blades collection covers every lapidary and stone cutting application — from ultra-thin super slicer blades for precious stone slicing through to large-diameter sintered blades for slab saws and band saw blades for curved freeform cuts. All blades are designed for wet cutting of stone, glass, ceramic, and hard minerals, with options for every saw type and material hardness level.

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Product Format Guide

Blade Selection Guide

Related Tools

• Saw Blade Washer Rings — Arbor bushing adapters to fit blade bore to saw arbor diameter
• Water Swivel Adaptors — Continuous water cooling for diamond cutting tools
• Diamond Core Drills — Diamond drill bits for precision hole drilling in stone and glass after sawing
• Diamond Band Saw Blades — Continuous loop blades for curved and freeform stone and glass cuts

Frequently Asked Questions

• Q: What is the best diamond saw blade for cutting agate and jasper on a lapidary trim saw?
  A: For cutting agate and jasper on a lapidary trim saw, the Red Thin Rim Lapidary Saw is the best all-around choice — the sintered thin rim delivers clean, accurate cuts with minimal chipping on hard silica stones (Mohs 7). For maximum material recovery on valuable agate rough, the Diamond Super Slicer blade provides the thinnest kerf available, minimizing waste on each cut. Always use wet with continuous water or oil coolant and feed the stone slowly without forcing the blade.
• Q: How do I cut gemstone rough on a lapidary slab saw without cracking it?
  A: To cut gemstone rough on a lapidary slab saw without cracking, use a sharp diamond blade appropriate for the stone hardness, run the saw with continuous oil or water coolant flowing over the blade, feed the stone slowly and steadily without forcing, clamp the rough securely to prevent movement during cutting, and never stop the cut mid-way through the stone. Heat and vibration are the primary causes of cracking — proper coolant flow and controlled feed rate prevent both.
• Q: What size diamond blade do I need for a 10" lapidary slab saw?
  A: For a 10" lapidary slab saw, you need a 10" diameter diamond blade with the correct arbor bore for your machine (typically 5/8" or 3/4"). Check your slab saw’s specification plate for the exact blade diameter and arbor size required. Use our Saw Blade Washer Rings to adapt blade bore sizes if needed. A 10" sintered or notched rim blade is recommended for production slab cutting on hard lapidary stone.
• Q: Should I use oil or water coolant with a diamond lapidary saw blade?
  A: Most lapidary trim saws and slab saws use oil-based coolant (mineral oil or commercial lapidary oil) rather than water. Oil provides better lubrication and rust protection for the saw’s internal components, and helps prevent stone from absorbing coolant during cutting. Some machines use water — always follow your saw manufacturer’s coolant recommendation. Never run a diamond lapidary blade dry — heat destroys the diamond bond and can crack the stone.
• Q: What is the difference between a sintered and an electroplated diamond saw blade for lapidary?
  A: Sintered diamond saw blades have diamonds throughout the full rim matrix — continuously exposing fresh cutting points as the rim wears for consistent performance and long service life. Electroplated blades have a single surface layer of diamonds — they cut aggressively when new but wear through permanently. For regular lapidary use, sintered blades deliver significantly better value over time. Electroplated blades suit occasional light-duty cutting where initial cost is the priority.