X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

Shop Loose Boulder Opal: Cabochons, Natural Boulder Opal for Jewelry

Boulder Opal Weight
Boulder Opal Size
Boulder Opal Clarity
Boulder Opal Price

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color
Black
Blue
Brown
Golden
Gray
Green
Multicolor Boulder Opal
Orange
Pink
Purple
Red
Turquoise
Violet
White
Yellow
Single
Pairs
Lots
Faceted
Cabochons
Clear All
ID: 522128
Weight: 14.29ct
Size: 21.6 x 14.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 94.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 744119
Weight: 5.70ct
Size: 15 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 28.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 718516
Weight: 45.10ct
Size: 41.1 x 26.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 270.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 626295
Weight: 13.78ct
Size: 19.2 x 13.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 127.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 522130
Weight: 13.46ct
Size: 14.7 x 12.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 88.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 321927
Weight: 31.20ct
Size: 29.5 x 20.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 288.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 469563
Weight: 39.95ct
Size: 17.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 239.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 627636
Weight: 14.28ct
Size: 23.2 x 11.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 131.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 678772
Weight: 12.95ct
Size: 23.1 x 12.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 77.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 321922
Weight: 28.03ct
Size: 27 x 20 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 259.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 678875
Weight: 6.10ct
Size: 17 x 11.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 36.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 718560
Weight: 16.75ct
Size: 26.6 x 15.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 100.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 634615
Weight: 14.40ct
Size: 18.4 x 16.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 120.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 636152
Weight: 8.58ct
Size: 15 x 10.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 72.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 627852
Weight: 8.68ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 52.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 524128
Weight: 19.30ct
Size: 25.4 x 21.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 127.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 678767
Weight: 10.26ct
Size: 19.2 x 10.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 61.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 629945
Weight: 8.11ct
Size: 21.1 x 11 mm
Clarity: Opaque
Content: 1 pc
Price: $ 68.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 678881
Weight: 22.35ct
Size: 25.9 x 22 mm
Clarity: Opaque
Content: 1 pc
Price: $ 134.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 523156
Weight: 16.01ct
Size: 30.6 x 12.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 105.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 718601
Weight: 7.00ct
Size: 18.5 x 12.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 42.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 679241
Weight: 9.45ct
Size: 23.9 x 9.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 56.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 300454
Weight: 20.92ct
Size: 25.5 x 14.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 193.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 718554
Weight: 16.59ct
Size: 29.3 x 14.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 99.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 678877
Weight: 9.98ct
Size: 21.9 x 14 mm
Clarity: Opaque
Content: 1 pc
Price: $ 59.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 626296
Weight: 8.69ct
Size: 20 x 12.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 80.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 679240
Weight: 14.45ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 86.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 628049
Weight: 7.58ct
Size: 18 x 9.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 45.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 628031
Weight: 14.37ct
Size: 16.4 x 13.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 120.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 679143
Weight: 13.99ct
Size: 20.7 x 12.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 83.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 523723
Weight: 36.66ct
Size: 39.1 x 16.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 241.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 627970
Weight: 11.19ct
Size: 18.2 x 14.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 67.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 322038
Weight: 54.71ct
Size: 27.3 x 23.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 505.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 678876
Weight: 4.92ct
Size: 15.3 x 9.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 29.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 679218
Weight: 13.64ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 81.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 718644
Weight: 15.73ct
Size: 36.4 x 16.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 94.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 365252
Weight: 10.04ct
Size: 15.2 x 12.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 92.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 449597
Weight: 21.20ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 195.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 635340
Weight: 7.95ct
Size: 18.3 x 9.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 66.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 718564
Weight: 75.33ct
Size: 43.5 x 29.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 451.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 321930
Weight: 36.09ct
Size: 29.8 x 18.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 333.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 678678
Weight: 8.27ct
Size: 27.2 x 8.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 49.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 718639
Weight: 27.89ct
Size: 25.7 x 23.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 167.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 628385
Weight: 15.18ct
Size: 20.8 x 16.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 91.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 635338
Weight: 13.60ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 114.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 679145
Weight: 17.63ct
Size: 23.8 x 14.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 105.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 635335
Weight: 14.55ct
Size: 26.3 x 11.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 122.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 627632
Weight: 8.06ct
Size: 16.8 x 11.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 74.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 718646
Weight: 9.18ct
Size: 16.7 x 9.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 55.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 321836
Weight: 13.35ct
Size: 21.4 x 15 mm
Clarity: Opaque
Content: 1 pc
Price: $ 123.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 628045
Weight: 9.86ct
Size: 20.4 x 11.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 59.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 522179
Weight: 18.73ct
Size: 23.5 x 20.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 123.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 629217
Weight: 8.32ct
Size: 18.8 x 10.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 69.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 678882
Weight: 7.13ct
Size: 13 x 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 102.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 718505
Weight: 40.81ct
Size: 34.3 x 24.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 244.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 627857
Weight: 11.60ct
Size: 19.8 x 15.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 69.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 718506
Weight: 24.71ct
Size: 42.2 x 16.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 148.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 678879
Weight: 42.66ct
Size: 23.8 x 21.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 255.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 679139
Weight: 6.17ct
Size: 14 x 14 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 37.02
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
4
Choose Page
1 - 4

FAQs

What is boulder opal, and where does it come from?

Boulder opal is a unique type of opal that forms naturally within ironstone rock, giving it a beautiful mix of colors and textures. The primary origin of boulder opal is Australia, where it is highly valued for its vibrant colors and durability.

Why choose loose boulder opal for jewelry?

Loose boulder opal offers flexibility for custom designs, making it perfect for creating unique boulder opal jewelry. Available in forms like raw boulder opal, polished boulder opal, and boulder opal cabochon, each piece highlights the natural beauty and rich colors that boulder opal gemstones are known for.

What colors are found in boulder opal gemstones?

Boulder opal colors are incredibly diverse, ranging from blues and greens to reds and purples. Each boulder opal crystal has its unique color pattern, influenced by the natural formation within the rock, making every gemstone one-of-a-kind.

Is Australian boulder opal different from other opals?

Yes, Australian boulder opal is distinct for its unique origin and vibrant color play. Unlike other types of opal, boulder opal forms within a matrix of ironstone, adding durability and a distinct look that is highly prized in the gemstone world.

What is the meaning and value of boulder opal?

Boulder opal meaning is often associated with grounding, creativity, and inspiration. Many believe it has healing properties that promote emotional stability. The value of boulder opal depends on factors like color intensity, pattern, and the quality of the opal within the ironstone matrix.

How should I care for my boulder opal jewelry?

Boulder opal jewelry is relatively durable but should still be handled with care. Avoid exposing your loose boulder opal or boulder opal cabochons to harsh chemicals or extreme temperatures to preserve their natural colors and shine.

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

My experience was done with ease

Posted By Barb in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.

Posted By DNaber in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience. I can't wait to explore on the website further.

Posted By Kymmie in September, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D in December, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

the gems were smaller than I thought but I was at fault for not reading the complete discrimination

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The site provided lots of detail, factual data, and good photos. I also like the availability of searching by price range as well as by the type of stone.

Posted By SLIntuitive Donna in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent experience and will use again

Posted By Online Shopper in July, 2025
Source: Bizrate
Enlarged Gemstone Image