GILSON OPALS

Attention Glassblowers:
Don't be fooled by the imitation Gilson opal that is currently on the market. It won't work with glass because its made with plastic resin.
These are the real deal, guaranteed.

Synthetic opals by Gilson are only compatible with borosilicate glass which is 33 coe.

Shard Sizes are as follows:
(Shard = 1mm to 0.5mm) (Mini = 0.5mm to 0.35mm) (Micro = 0.35mm to 0.25mm) (Nano = 0.25 to 0.10mm)

Products: 124 of 61
  • BLACK CUBE  3mm OPALS by GILSON OPALS

    BLACK CUBE 3mm OPALS by GILSON OPALS

    These black cubes are out of this world. They flash huge fire and have a jet black base colour. The opals have a superior high gloss finish and perfectly cut edges. You will be impressed with the quality of these opals.
    Sold by the piece.

    • CA$14
  • BLACK DIAMOND COIN 6x4mm OPALS by GILSON OPALS

    BLACK DIAMOND COIN 6x4mm OPALS by GILSON OPALS

    These 6x4mm diamond coin opals are are flat & polished on both side and the edges are beveled and polished so they can be perfectly placed. These stones are great for geometric patterns and disc flips.
    Sold by the piece.

    • CA$18
  • BLACK MARQUISE  6x3mm OPALS by GILSON OPALS

    BLACK MARQUISE 6x3mm OPALS by GILSON OPALS

    These black marquise opals are fantastic. Lots of fire in these little stones.
    Sold by the piece.

    • CA$7.50
  • BLACK ROUND COIN 3mm OPALS by GILSON OPALS

    BLACK ROUND COIN 3mm OPALS by GILSON OPALS

    These 3mm coin opals are are flat & polished on both sides as well as the edges. These stones are perfect for those tiny spaces - iris of the eye, headlight of a car, planet off in the distance- you name it, these great little stones will fit the bill.
    Sold by the piece.

    • CA$5
  • BLACK ROUND COIN 8mm OPALS by GILSON OPALS

    BLACK ROUND COIN 8mm OPALS by GILSON OPALS

    These coin opals are flat and polished on both sides. The edges are rounded and polished. Each stone flashes a rainbow of intense fire. You are going to love these opals!
    Sold by the piece.

    • CA$29.50
  • BLACK ROUND COIN 10mm OPALS by GILSON OPALS

    BLACK ROUND COIN 10mm OPALS by GILSON OPALS

    These coin opals are flat and polished on both sides and the edges are rounded and polished as well. Each stone flashes a rainbow of intense fire. You are going to love these opals. Sold by the piece.

    • CA$42
  • BLACK SPHERE 3mm OPALS by ACADIAN

    BLACK SPHERE 3mm OPALS by ACADIAN

    Solid black base colour sphere with lots of multicolour flash. A very popular opal.
    Sold by the piece.

    • CA$9.46
  • BLACK SPHERE 4mm OPALS by GILSON OPALS

    BLACK SPHERE 4mm OPALS by GILSON OPALS

    Solid black base colour sphere with lots of multicolour flash. A very popular opal.
    Sold by the piece.

    • CA$20
  • BLACK SPHERE 6mm OPALS by GILSON OPALS

    BLACK SPHERE 6mm OPALS by GILSON OPALS

    Solid black base colour sphere with lots of multicolour flash. A very popular opal.
    Sold by the piece.

    • CA$56
  • BLACK SQUARE COIN 3mm OPALS by GILSON OPALS

    BLACK SQUARE COIN 3mm OPALS by GILSON OPALS

    These 3mm square coin opals are flat & polished on both side and the edges are rounded and polished. These stones are perfect for geometric patterns.
    Sold by the piece.

    • CA$5.50
  • BLACK TRILLION 4mm OPALS by GILSON OPALS

    BLACK TRILLION 4mm OPALS by GILSON OPALS

    These black trillions have an opaque base and great fire. You will be very happy with the way these opals look.
    Sold by the piece.

    • CA$4.50
  • BLUE ROUND FACETED 6mm OPALS by GILSON OPALS

    BLUE ROUND FACETED 6mm OPALS by GILSON OPALS

    These faceted rounds are stunning with a total of 40 facets. Each stone is calibrated and ready for use in glass or jewelry. The rainbow fire plus play of light is really interesting and sure to wow.
    Sold by the piece.

    • CA$28
  • BLUE SPHERE 3mm OPALS by ACADIAN

    BLUE SPHERE 3mm OPALS by ACADIAN

    These 3mm Blue spheres are transparent with a light blue base and deep green fire.
    Sold by the piece.

    • CA$8.40
  • BLUE SPHERE 4mm OPALS by GILSON OPALS

    BLUE SPHERE 4mm OPALS by GILSON OPALS

    These 4mm Blue spheres are transparent with a light blue base and deep green fire.
    Sold by the piece.

    • CA$18
  • CRYSTAL SPHERE 3mm OPALS by GILSON OPALS

    CRYSTAL SPHERE 3mm OPALS by GILSON OPALS

    The very best value in spheres. These opals flash green and blue and are otherwise completely transparent.
    Sold by the piece.

    • CA$8
  • CRYSTAL SPHERE 4mm OPALS by GILSON OPALS

    CRYSTAL SPHERE 4mm OPALS by GILSON OPALS

    These 4mm crystals spheres are transparent with bright green and blue fire.
    Sold by the piece.

    • CA$19
  • GREEN ROUND COIN 3mm OPALS by GILSON OPALS

    GREEN ROUND COIN 3mm OPALS by GILSON OPALS

    These 3mm green coin opals are are flat & polished on both sides as well as the edges. These stones are perfect for those tiny spaces - iris of the eye, headlight of a car, planet off in the distance - you name it, these great little stones will fit the bill. Sold by the piece.

    • CA$5
  • GREEN TRILLION 4mm OPALS by GILSON OPALS

    GREEN TRILLION 4mm OPALS by GILSON OPALS

    These green trillions have an opaque base and great green fire.
    Sold by the piece.

    • CA$7
  • PINK SPHERE 3mm OPALS by ACADIAN

    PINK SPHERE 3mm OPALS by ACADIAN

    These opal spheres have a cotton candy pink base with lots of intense pink fire. They have a superior high gloss finish and just pop with colour.
    Sold by the piece.

    • CA$8.40
  • RAINBOW SPHERE 3mm OPALS by GILSON OPALS

    RAINBOW SPHERE 3mm OPALS by GILSON OPALS

    These spheres opals flash a rainbow of blues, greens, reds, and purples and are otherwise completely transparent.
    Sold per piece.

    • CA$12
  • RAINBOW SPHERE 4mm OPALS by GILSON OPALS

    RAINBOW SPHERE 4mm OPALS by GILSON OPALS

    These spheres opals flash a rainbow of blues, greens, reds, and purples and are otherwise completely transparent.
    Sold per piece.

    • CA$18
  • WHITE DIAMOND COIN 6x4mm OPALS by GILSON OPALS

    WHITE DIAMOND COIN 6x4mm OPALS by GILSON OPALS

    These 6x4mm diamond coin opals are are flat & polished on both side and the edges are beveled and polished so they can be perfectly placed. These stones are great for geometric patterns and disc flips.
    Sold by the piece.

    • CA$16.50
  • WHITE ROUND 2.5mm OPALS by GILSON OPALS

    WHITE ROUND 2.5mm OPALS by GILSON OPALS

    These white 2.5mm round opals are opaque and flash lots of pink, blue, yellow and green. The pictures don't do the opals justice. They also have a great polish which makes these stones pop.
    Sold by the piece.

    • CA$3.25
  • WHITE ROUND 3mm OPALS by ACADIAN

    WHITE ROUND 3mm OPALS by ACADIAN

    These white 3mm round opals are opaque and flash lots of pink, blue, yellow and green. The pictures don't do the opals justice. They also have a great polish which makes these stones pop.
    Sold by the piece.

    • CA$2.50
Products: 124 of 61