-
One-of-a-Kind Australian Boulder Natural Opal Cabochon 65 Carats
This Natural Beautiful Australian Boulder Opal Cabochon can be used in handcrafted jewelry or could be selected by you for your own customized piece of jewelry. This cabochon of opal is 65 carats.
Learn MoreRetail Price: $107.25
Sale Price: $32.50
You Save: 70%
-
Natural Australian Boulder Opal Cabochon 165 Carats
This Natural Australian Boulder Opal Cabochon is ready for use in handcrafted jewelry or could be selected by you for your customized jewelry.
Learn MoreRetail Price: $272.25
Sale Price: $82.50
You Save: 70%
-
Natural Australian Boulder Mountain Dazzling Opal Gemstone Cabochon 205 Carats
This natural Boulder Mountain Australian Opal Cabochon is ready for use in handcrafted jewelry or could be selected by you for your customized jewelry.
Learn MoreRetail Price: $338.50
Sale Price: $102.50
You Save: 70%
-
Boulder Mountain Natural Australian Exotic Opal Cabochon 245 Carats
This Boulder Mountain Natural Australian Opal Cabochon is ready for use in handcrafted jewelry, such as wire wrapping, or could be selected by you for your customized jewelry.
Learn MoreRetail Price: $404.50
Sale Price: $122.50
You Save: 70%
-
Boulder Mountain Australian Natural Opal Cabochon 220 Carats
This Boulder Mountain Australian Natural Opal Cabochon is ready for use in any handcrafted jewelry, especially for wire wrapping, or it can be selected by you for us to build you a customized piece of jewelry.
Learn MoreRetail Price: $363.00
Sale Price: $110.00
You Save: 70%
-
Boulder Mountain Vibrant Natural Australian Opal Cabochon 140 Carats
This Boulder Mountain Natural Australian Opal Cabochon is ready for use in your hand made jewelry. Great for the wire wrapping technique. We can build a custom piece of jewelry for you, when you purchase it. This beautiful cab is 140 carats.
Learn MoreRetail Price: $231.00
Sale Price: $70.00
You Save: 70%
-
Boulder Mountain Natural Gemstone Australian Opal Cabochon 110 Carats
This Boulder Mountain Natural Australian Opal Cabochon is ready for use in handcrafted jewelry, such as wire wrapping, or could be selected by you for your customized jewelry. This gemstone opal is 110 carats.
Learn MoreRetail Price: $181.50
Sale Price: $55.00
You Save: 70%
-
Australian Boulder Mountain Natural Opal Cabochon 185 Carats
This Australian Boulder Mountain Natural Opal Cabochon is ready for use in hand made jewelry or could be selected by you for your own customized jewelry.
Learn MoreRetail Price: $305.25
Sale Price: $92.50
You Save: 70%
-
Boulder Mountain Australian Natural Opal Cabochon 80 Carats
This Boulder Mountain Australian Natural Opal Cabochon is ready for use in any handcrafted jewelry, especially for wire wrapping, or it can be selected by you for us to build you a customized piece of jewelry.
Learn MoreRetail Price: $132.00
Sale Price: $40.00
You Save: 70%
-
Natural Australian Boulder Opal Stone Cabochon 95 Carats
This Natural Australian Boulder Opal Stone Cabochon can be used to make jewelry, or we can create a unique custom jewelry piece for you. Opal stone cab is 95 carats.
Learn MoreRetail Price: $156.75
Sale Price: $47.50
You Save: 70%
-
Australian Boulder Natural Opal Cabochon Stone 145 Carats
This Natural Australian Boulder Opal Stone Cabochon is used to create unique custom jewelry at home or have us custom build a piece for you in our shop. The Opal stone cab is 145 carats.
Learn MoreRetail Price: $239.25
Sale Price: $72.50
You Save: 70%
-
Australian Boulder Mountain Natural Opulent Opal Stone Cabochon 275 Carats
This Natural Australian Boulder Opal Stone Cabochon is used to create unique custom jewelry at home or have us custom build a piece for you in our shop. The Opal stone cab is 275 carats.
Learn MoreRetail Price: $453.70
Sale Price: $137.50
You Save: 70%
-
Australian Boulder Natural Radiant Opal Cabochon 230 Carats
This Natural Australian Boulder Opal Stone Cabochon is used to create unique custom jewelry at home or have us custom build a piece for you in our shop. The Opal stone cab is 230 carats.
Learn MoreRetail Price: $379.50
Sale Price: $115.00
You Save: 70%
-
Australian Boulder Mountain Natural Brilliant Opal Stone Cabochon 485 Carats
This Australian Boulder Natural Opal Stone Cabochon can be used to create custom opal jewelry or we can create it for you. This opal stone cabochon is 485 carats.
Learn MoreRetail Price: $800.25
Sale Price: $242.50
You Save: 70%
-
Australian Boulder Natural Vibrant Opal Cabochon 165 Carats
Use this Australian Boulder Natural Opal Stone Cabochon to create custom opal jewelry or have us create it for you. This Australian opal gemstone cab is 165 carats.
Learn MoreRetail Price: $272.50
Sale Price: $82.50
You Save: 70%
-
Australian Natural Opal Stone Cabochon 100 Carats
This Australian Natural Opal Stone Cabochon should be used to build your own jewelry or in a custom piece of jewelry we can build for you. Opal stone cab is 100 carats.
Learn MoreRetail Price: $165.00
Sale Price: $50.00
You Save: 70%
Boulder Opal Cabochons
Boulder Opal, found in Australia where the opal forms into veins and patches within brown ironstone boulders. When opal is mixed with the ironstone it's called matrix opal. The hardness of Boulder Opal ranges between 5.5 and 6 on the Mohs scale. Boulder opal is a very durable stone because of the ironstone backing the opal forms on. If the water content within the opal is low it almost never cracks or crazes as it ages.
- OperatorsOn Duty(800) 417-0024(480) 963-2284
