Diamond Faceting Laps

Diamond Faceting Laps – 6" & 8" Electroplated Diamond Laps for Gemstone Faceting

Our Diamond Standard Faceting Laps are manufactured in-house with a precision electroplated diamond surface, delivering accurate, repeatable stock removal and consistent facet angles on sapphire, ruby, topaz, quartz, tourmaline, and virtually all facetable gemstones. Available in 6" and 8" diameters with a 1/2" thickness, and in a complete grit range from 60 grit coarse grinding through 3000 grit pre-polish — everything you need to take a rough gemstone from initial shaping to a mirror-ready surface.

🔥 Shop Diamond Faceting Laps – $30.00 Each

Available Sizes & Grits

Diameter Thickness Available Grits Price
6" 1/2" 60, 80, 100, 180, 240, 280, 360, 600, 1200, 3000 $30.00
8" 1/2" 60, 80, 120, 180, 240, 280, 360, 600, 1200, 3000 $30.00

Grit Selection Guide

Grit Stage Application
60–100 Coarse grinding Rapid material removal, initial facet blocking on rough stone
180–360 Medium grinding Facet refinement, removing coarse scratches, meet-point work
600–1200 Fine grinding Smoothing facets, removing medium scratches before pre-polish
3000 Pre-polish Final surface preparation before polishing lap stages

Compatible Applications

  • Gemstone faceting — sapphire, ruby, topaz, quartz, tourmaline, beryl, garnet, and all facetable gemstones
  • Initial facet blocking — coarse grits (60–100) for rapid material removal on rough stone
  • Meet-point faceting — medium grits (180–360) for precise facet angle refinement
  • Pre-polish preparation — fine grits (600–3000) for scratch-free surface before polishing laps
  • Standard faceting machines — 6" and 8" laps for all standard hobby and professional faceting machine platens
  • Flat lap grinding — cabochon base grinding and surface leveling on flat lap machines

Related Tools

Frequently Asked Questions

  • Q: Which grit should I start with for faceting a rough gemstone?
    A: Start with 60–100 grit for initial blocking and rapid material removal on rough stone. Progress through 180–360 grit for meet-point work and facet refinement, then 600–1200 grit for fine smoothing, and finish with the 3000 grit lap before moving to polishing laps.
  • Q: What is the difference between the 6" and 8" faceting laps?
    A: Both diameters use the same electroplated diamond surface and 1/2" thickness at $30.00 each. The 8" lap provides a larger working surface for larger gemstones or faceting machines with 8" platens. The 6" lap is the standard size for most hobby and semi-professional faceting machines.
  • Q: Should diamond faceting laps be used wet or dry?
    A: Wet use is strongly recommended. Apply water or a water-soluble coolant during faceting to cool the lap and gemstone, prevent heat damage to the stone, and extend lap life.