Enjoy free shipping on orders $100+

Fully tracked shipping worldwide

One tree planted with every purchase 🌱

42,000+ Trees Planted Since 2018 - thanks to you

Collection: Boulder Opal

Shop boulder opal at Erikord Gems. Explore natural boulder opal from Australia, featuring colour veins and unique patterns within its ironstone matrix.

154ct (5pc) Boulder Opal Cabochons, Australia

154ct (5pc) Boulder Opal Cabochons, Australia

Regular price $36.00 USD

Regular price Sale price $36.00 USD
209ct (4pc) Boulder Opal Cabochons, Australia

209ct (4pc) Boulder Opal Cabochons, Australia

Regular price $36.00 USD

Regular price Sale price $36.00 USD
8.99ct Boulder Opal Cabochon from Koroit, Australia

8.99ct Boulder Opal Cabochon from Koroit, Australia

Regular price $56.00 USD

Regular price Sale price $56.00 USD
12.06ct Boulder Opal Cabochon from Koroit, Australia

12.06ct Boulder Opal Cabochon from Koroit, Australia

Regular price $25.00 USD

Regular price Sale price $25.00 USD
5.27ct Boulder Opal Cabochon from Koroit, Australia

5.27ct Boulder Opal Cabochon from Koroit, Australia

Regular price $44.00 USD

Regular price Sale price $44.00 USD
13.25ct Boulder Opal Cabochon from Koroit, Australia

13.25ct Boulder Opal Cabochon from Koroit, Australia

Regular price $39.00 USD

Regular price Sale price $39.00 USD
12.20ct Boulder Opal Cabochon from Koroit, Australia

12.20ct Boulder Opal Cabochon from Koroit, Australia

Regular price $20.00 USD

Regular price Sale price $20.00 USD
2.60ct Boulder Opal Cabochon, Koroit, Australia (Natural)

2.60ct Boulder Opal Cabochon, Koroit, Australia (Natural)

Regular price $17.00 USD

Regular price Sale price $17.00 USD
1.87ct Pear Boulder Opal, Koroit, Australia (Natural)

1.87ct Pear Boulder Opal, Koroit, Australia (Natural)

Regular price $16.00 USD

Regular price Sale price $16.00 USD
169ct Lot of Boulder Opal Cabochons, Koroit, Australia (Natural)

169ct Lot of Boulder Opal Cabochons, Koroit, Australia (Natural)

Regular price $24.00 USD

Regular price Sale price $24.00 USD

Discover more of our favorites

2.89 ct (8 pieces) Spessartine Garnet - Pear Shaped Faceted Gemstones - Mandarin Garnet Lot - Natural Untreated Cut Gemstones for Jewelry

Faceted Gemstones

Shop faceted gemstones at Erikord Gems. Discover affordable loose cut stones with...

Faceted Gemstones

14g Erythrite Mineral Specimen - Bou Azzer, Morocco - Rare Erythrite Crystal Specimen - Cobalt Bloom Crystal - Red Cobalt Crystal

Fine Mineral Specimens

Shop fine mineral specimens at Erikord Gems. Featuring rare, top-shelf quality minerals,...

Fine Mineral Specimens

Mineral Specimens

Mineral Specimens

Shop mineral specimens at Erikord Gems. Discover our wide variety of unique,...

Mineral Specimens