OPAL

OPAL
If a rainbow could be captured and set in a ring then it would be called opal. Chasing the rainbow (finding the colour layers that exist in the rough rocks) has been a pre-occupation of lapidaries for years. Opal is comprised of tiny spheres of silica. When these spheres are of uniform size and arranged in a three dimensional layer, light is diffracted into the colours of the spectrum and conveyed as a flash of coloured light. Opal also contains water, sometimes as much as 30%, so great care must be taken when heating the stone to avoid cracking. Over time the water in the opal can dry out and serious cracks can occur.

Items 1-200 of 908

Set Ascending Direction
  1. OPAL 16X12 CABOCHON OVAL 4.49CT

    sku: O9419
    £2,245.00
  2. OPAL 16X11.8 CABOCHON OVAL 5.9CT

    sku: O9412
    £2,006.00
  3. OPAL 11X9 CABOCHON OVAL 1.6CT

    sku: O9394
    £640.00
  4. OPAL 14X12 CABOCHON OVAL 4.28CT

    sku: O9384
    £1,712.00
  5. OPAL 14X10 CABOCHON OVAL 3.86CT

    sku: O9356
    £1,544.00
  6. OPAL 9X7 CABOCHON OVAL 1.16CT

    sku: O9355
    £255.20
  7. OPAL 12X10 CABOCHON OVAL 3.06CT

    sku: O9354
    £1,224.00
  8. OPAL 9X7 CABOCHON OVAL 0.88CT

    sku: O9349
    £193.60
  9. OPAL 9X7 CABOCHON OVAL 0.05CT

    sku: O9348
    £231.00
  10. OPAL 13X11 CABOCHON OVAL 3.02CT

    sku: O9347
    £1,208.00
  11. OPAL 12X10 CABOCHON OVAL 2.62CT

    sku: O9346
    £1,048.00
  12. OPAL 14X10 CABOCHON OVAL 2.85CT

    sku: O9341
    £1,140.00
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