Gemstone Cabochons  >> Blue Onyx

All our gemstone cabochons have a flatback and do not have holes for stringing.

They are all sold individually unless otherwise stated.

In the majority of the photos, we have pictured a number of stones in order to show the natural variations that occur within a batch.
Sub-categories: Amazonite |  Amber |  Amber (Green) |  Amethyst |  Aquamarine |  Aquamarine |  Aragonite |  Aventurine |  Azurite |  Banded Agate |  Black Onyx |  Black Star Diopside |  Bloodstone |  Blue Lace Agate |  Blue Onyx |  Blue Quartz |  Brecciated Jasper |  Bright Dyed Stone |  Carnelian |  Chalcedony |  Charoite |  Chrysanthemum Stone |  Chrysocolla |  Citrine |  Clear Quartz |  Dalmation Stone |  Dyed Howlite |  Fluorite |  Garnet |  Goldstone (Blue) |  Goldstone (Brown) |  Green Marble |  Green Onyx |  Haematite |  Hemimorphite |  Iolite |  Jade |  Jasper (Picture) |  Jasper (Red) |  Kyanite |  Labradorite |  Lapis Lazuli |  Lemon Chrysophrase |  Leopard Skin Agate |  Leopard Stone |  Lepidolite |  Malachite |  Mixed Batches |  Moonstone |  Moss Agate |  Opal |  Peridot |  Pink Tourmaline |  Prehnite |  Rainbow Moonstone |  Rhodochrosite |  Rhodonite |  Rhyolite |  Rose Quartz |  Ruby in Zoisite |  Russian Serpentine |  Rutilated Quartz |  Snakeskin Jasper |  Snowflake Obsidian |  Sodalite |  Spherulitic Rhyolite |  Sunset Jasper |  Sunstone |  Tiger Jasper |  Tigers Eye |  Topaz |  Tourmalinated Quartz |  Turquoise |  Unakite |  White Howlite |  White Marble |  White Marble (Dyed) | 
Sub-sub-categories: Round | 
Blue Onyx 5mm Cabochon Blue Onyx 5mm Cabochon

Blue Onyx 5mm cabochon These stones are natural agate/onyx which has been dyed ...

£0.35


Gemstone Cabochons  >> Blue Onyx
Blue Onyx 4mm Cabochon Blue Onyx 4mm Cabochon

Blue Onyx 4mm cabochon These stones are natural agate/onyx which has been dyed ...

£0.26


Gemstone Cabochons  >> Blue Onyx
Dyed Onyx 6mm Cabochons - Grey Dyed Onyx 6mm Cabochons - Grey

These dyed onyx cabochons are a delicate pale blueish grey...

£0.22


Gemstone Cabochons  >> Blue Onyx
Blue Onyx Cabochon - Oval 8 x 6 mm Blue Onyx Cabochon - Oval 8 x 6 mm

Dyed blue onyx cabochon, 8 x 6 mm...

£0.40


Gemstone Cabochons  >> Blue Onyx