COLOR GEMS BAZAAR

CUTTING CARE & TIPS

Learn how to choose the right cut, handle your gemstones with care, and keep their natural beauty, brilliance, and character shining for years to come.

Lapidary Guide

Getting the Most from Your Rough Gemstones

You've got your packet of rough — now what? Whether you're an experienced lapidary or just starting your first faceting project, these tips will help you handle, orient, and cut your rough gemstones with confidence. We want every stone you buy from us to reach its full potential on your wheel.

When Your Packet Arrives

  • Inspect your stones first Take each piece out and examine it in good daylight. Look at the shape, color distribution, and any visible inclusions or fractures. Compare what you see in hand to our daylight and backlit product images.
  • Handle with care Rough gemstones may have sharp edges, natural fractures, or fragile crystal terminations. Handle gently, especially smaller or thinner pieces — a dropped stone can mean a lost design opportunity.
  • Store them properly Keep rough stones in their original packaging or separate compartments. Harder stones like Sapphire can scratch softer ones like Kunzite if they rub together — a divided box or individual pouches works well.

Planning Your Cut

Spend time turning the stone in your hands before you touch the wheel. Where is the best color? Is there an area you want to feature in the finished gem? Are there cracks you need to cut around? A few minutes of planning saves hours of frustration later.

  • Orient for best color.Many rough gemstones show different colors from different angles. Tourmaline, for example, often has a deeper color looking down the length of the crystal and a lighter color across it. Turn your stone under good light and find the direction with the richest hue — that's usually the table of your finished gem.
  • Work with the natural shape.The rough crystal shape is your best guide. Let the stone's natural geometry suggest the final outline — this minimizes waste, reduces cutting time, and often produces a more brilliant finished stone.
  • Mark your plan.Use a fine‑tipped permanent marker or aluminum pencil to sketch your intended cuts directly onto the rough. This helps you stay oriented and confident once the stone is dopped.

Cutting Tips by Stone Hardness

Different gemstones behave differently on the wheel. Here's a quick reference:

Stone TypeHardness (Mohs)Cutting Tips
Amethyst, Quartz family7Cuts smoothly. Watch for hidden internal fractures — they can open up during cutting. Use plenty of water.
Aquamarine, Morganite7.5–8Cuts beautifully and cleans up well. Can be slightly brittle on sharp edges — ease up on pressure at facet meets.
Garnet (all types)6.5–7.5Cuts easily but can be heat‑sensitive. Keep the stone cool with frequent water dips. Avoid dry polishing.
Tourmaline (all colors)7–7.5Prone to hidden stress fractures. Cut gently, especially on thin edges. Orient for best color before dopping.
Sapphire, Spinel8–9Hard and durable. Requires patience but rewards with a brilliant polish. Use diamond laps for best results.
Peridot6.5–7Softer and sensitive to heat. Keep it wet, use light pressure, and avoid sudden temperature changes.
Kunzite, Scapolite6–7Softer and more delicate — perfect stones for practicing gentle technique. Polish with care; they scratch easily.
Hackmanite5.5–6Soft and sensitive. Handle minimally, cut with light pressure, and store away from harder stones.

General Lapidary Best Practices

  • Keep everything wet.Water is your best friend — it cools the stone, reduces dust, and prevents heat‑related cracks. Make sure your drip system is working before every session.
  • Let the lap do the work.Don't press the stone hard into the lap. Gentle, even pressure gives you a cleaner cut, a better polish, and fewer surprises. Rushing is the fastest way to lose a good stone.
  • Inspect as you go.Stop regularly and check your progress under good light. Look for small chips forming on facet edges, uneven wear, or shifts in your meet points — catch issues early.
  • Dop carefully.A well‑dopped stone is half the job done. Make sure it's secure, aligned correctly, and that your dop wax or epoxy is fully set before you start cutting.

Stone Care After Cutting

  • Clean gently Clean your finished gem with warm water, mild soap, and a soft brush. Avoid ultrasonic cleaners for stones with inclusions or fractures — they can worsen existing flaws.
  • Store individually Even after cutting, gemstones can scratch each other. Store finished stones in individual compartments, pouches, or gem jars — keep harder gems away from softer ones.
  • Show your work Tag @ColorGemsBazaar on Instagram with your finished pieces — we celebrate every stone that makes the journey from rough to finished gem, and we'd be honored to feature your work.

Need Help?

Every stone is different, and sometimes you just need a second opinion. If you're unsure about the best orientation for a piece, or you want advice on how to approach a tricky rough, reach out to us. We're lapidaries too — we get it, and we're always happy to help.