Tandon Gems

How to inspect a gemstone bead strand at a show in 60 seconds

Anish Tandon, Founder, Tandon GemsPublished September 5, 2026· 2 min read

Short answer

Run the strand through your fingers to feel for chips or rough spots. Hold it to the light to see if the color matches across beads. Use a loupe to check drill holes for chipping and centering. Count beads against the tag. Check the ends for any filler beads. Ask the exact stone name and where it was cut.

In short

  • Reject strands with many chips at the hole or girdle.
  • Check color matching on white paper under bright light.
  • Make sure hole size fits your wire or cord plan.
  • Count usable beads and ignore end fillers.
  • Confirm stone name and cutting origin on the tag.
A person inspecting a gemstone bead strand with a loupe at a show.

How do I inspect a strand in 60 seconds?

We keep this fast and methodical at shows. These six checks catch most issues before you buy. Do them in order so you do not miss anything.

  • Run the strand through your fingers to feel chips, cracks, or flat spots.
  • Hold it to bright light on a white card to judge even color and saturation.
  • Use a loupe to inspect drill holes for chipping and centered drilling.
  • Count beads and compare to the tag number.
  • Inspect both ends for filler beads or short off-size pieces.
  • Ask the stone name and where it was cut.

How many 6 mm beads do I need?

Plan counts before you buy so the strand you choose actually covers your project. For a 7.5 in bracelet, 6 mm beads take about 25. An 18 in necklace takes about 70. A 16 in choker takes about 61.

  • Beads per inch, 6 mm about 4.2
  • 7.5 in bracelet, 6 mm about 25 beads
  • 18 in necklace, 6 mm about 70 beads
  • 16 in choker, 6 mm about 61 beads
Strands mentioned in this post

What do drill holes tell me?

A loupe shows the truth. Look for clean, even holes without half-moon chips. Off-center drilling makes beads spin oddly on the string, which can ruin the line of a necklace.

Confirm the hole will take your stringing material. If you plan .010 to .012 beading wire or heavier cord, test a cutoff or bring a short scrap to try a few beads on the end of the strand. Strands shown on firm wire usually reflect realistic hole sizes.

How do I judge color and matching under show lights?

Use a white card and look for consistent hue and saturation across the run. Check transitions on shaded strands to be sure the graduation is smooth. Pull two or four beads aside for earring or bracelet pairs if that is your plan.

Shape affects what you check. Rondelles should look even in height so the strand lays flat. Pears need balanced pairs by length and width for earrings or symmetrical necklaces.

Are filler beads and strand length going to cut yield?

Look at the last inch on each end. Temporary spacers or odd chips there are common and should not be counted as usable beads. Decide how many clean, on-size beads you actually get from the middle of the strand.

If you will knot, remember each knot adds about 1 mm. That increases finished length and may reduce how many beads you need, so buying a strand with a few extras is usually smart.

What should I ask at the booth?

Ask for the stone name on the tag and the cutting origin. We import Jaipur-cut gemstone bead strands and label stone, shape, size and cut on every listing. You can see upcoming dates to check strands in person on our show schedule.

Want examples of the specs you will see on tags online too? Compare a gray sapphire rondelle like GS1611 with a shaded emerald rondelle like GS1628. For pears, review GS2465. Email tandongems@outlook.com or WhatsApp +1 408-702-7405 for counts and availability.

Common questions

What counts should I expect on a 15 to 16 inch rondelle strand

About 65 to 70 beads for 6 mm, about 48 to 52 for 8 mm, and about 95 to 100 for 4 mm. Always confirm the tag and count usable beads yourself.

How do I check if a strand will lay flat when strung

Line several beads against a straight edge and look at their heights. For rondelles, even height keeps the strand from scalloping or twisting when worn.

What if the color looks different under show lights

Use a white card and step to neutral light if possible. View the strand away from colored backdrops. Consistent color across the run matters more than brightness.

How do I plan for clasp space in my bead count

Allow about 1.5 inches for clasp and findings. For a 16 inch choker, your beaded run is about 14.5 inches. Adjust counts with that in mind.

Can I rely on the tag bead count

Treat the tag as a starting point. Count the strand, exclude end fillers, and make sure the usable count matches your project needs before buying.

Sources and checks

  1. Appraising Pearls: How to Grade Pearls - Gem Society
  2. Stringing diamond beads - Jewelry Discussion - Ganoksin Orchid Jewelry Forum Community for Jewelers and Metalsmiths
  3. What are high end expensive beads? - Ganoksin Orchid

Facts about our own strands come from the stock room in Cupertino. Prices and stock on this page are live from the shop.

Strands to start with

Want a strand like the ones in this post?

Message Anish with the stone, shape and size you have in mind. Photos of actual strands on request.

Ask on WhatsApp

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