Simple measurement for customers

◼︎ MINERALS (Rough stones and loose stones)

  • The maximum values ​​for each dimension are measured in the order of length x width x height (mm) .
  • We will measure the stone using a digital caliper or ruler, based on the most protruding part of the stone.
  • For chamfered or irregularly shaped crystals, the most protruding part is used.

Tips for simple measurements

  • Place it on a ruler and check the length and width from above.
  • Measure the height from the side.
  • To prevent errors, avoid light reflections when taking measurements.

*Please also refer to the "palm comparison photo" in the product image for an idea of ​​the actual size.

◼︎ Natural stone bracelet

1. How to measure size and fit

  • When measuring your bracelet size, measure around your relaxed wrist with your palm slightly open to give a more natural fit.
  • Avoid the bony areas of your wrist and measure around the narrowest part of your wrist.
  • The fit when wearing it will depend on your preference.
  • For those who want a snug fit, add 0.5 to 1 cm to the actual wrist size.
    If you prefer a looser fit, we recommend going up 1 to 1.5cm in size.

2. How to measure your wrist size at home

  1. Please prepare a soft cloth tape measure or a thin string and ruler.
  2. Lightly wrap a tape measure or string around the narrowest part of your wrist.
  3. Don't tighten it too much, let it naturally fit your skin.
  4. For string, mark where the ends overlap and measure the length with a ruler.


*Rubber or stretchy bracelets are not suitable.
*Ideally, you should measure the inner circumference of a metal or wire bracelet you own.

◼︎ Earrings and ear cuffs

  • Place your earrings flat.
  • Measure the motif size (length x width) with a ruler.
  • Please refer to the product specifications for post length and thickness (usually 0.7mm x 10mm).
  • For cuff openings (ear cuffs), measure the width of the opening.

◼︎ Ring

[Inner diameter measurement]

  1. Place your matching ring on a flat surface.
  2. Measure the inner diameter (mm) with a ruler.
  3. Please apply it to the quick reference table below.
Japanese number Inner diameter (mm) Overseas (US)
#3 13.0 2.5
#5 14.0 3.5
#7 15.0 4.5
#9 16.0 5.5
#11 16.5 6
#13 17.0 6.5
#15 17.7 7.5


[Finger circumference measurement]

  1. Wrap paper tape or string around your fingers and mark the intersections.
  2. Stretch the string, measure the length, and use the conversion chart below.
Finger circumference (mm) Japanese number
44.0 #3
46.0 #5
48.0 #7
50.0 #9
52.0 #11
54.0 #13
56.0 #15


◼︎ Necklace

  1. Wrap the string or tape measure around your neck until you reach the desired position.
  2. Mark the overlapping part and measure the length.
  3. Please refer to the reference image below.

Reference table

full length Recommended wearing position Recommended Scenes
38cm Slightly above the collarbone Choker style/layered around the neck
45cm Around the center of the collarbone Basic/universal length
50cm subclavian Wide-necked clothing and layering
Over 55cm Chest One-piece dresses and turtlenecks