Shop Loose Boulder Opal: Cabochons, Natural Boulder Opal for Jewelry
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Discover our stunning collection of loose boulder opal gemstones, sourced from the finest Australian boulder opal origins. Known for their vibrant boulder opal colors and unique patterns, these gems make an exceptional choice for custom boulder opal jewelry. Choose from raw boulder opal, polished stones, or beautifully cut boulder opal cabochons to suit your design needs. Whether you're drawn to the natural beauty or the deep meaning and value of these gems, our selection offers a diverse range of options. |
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Bi-color
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Black
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Blue
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Brown
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Golden
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Gray
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Green
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Multicolor Boulder Opal
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Orange
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Pink
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Purple
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Red
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Turquoise
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Violet
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White
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Yellow
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
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| ID: | 522410 |
| Weight: | 20.80ct |
| Size: | 32.3 x 16.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 137.28 |
| Item in Stock | |
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| ID: | 626298 |
| Weight: | 21.39ct |
| Size: | 16 x 16 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 197.64 |
| Item in Stock | |
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| ID: | 523720 |
| Weight: | 17.29ct |
| Size: | 27 x 17.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 114.12 |
| Item in Stock | |
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| ID: | 634607 |
| Weight: | 12.07ct |
| Size: | 27.4 x 9.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 101.39 |
| Item in Stock | |
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| ID: | 628411 |
| Weight: | 16.81ct |
| Size: | 28.8 x 13.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 100.86 |
| Item in Stock | |
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| ID: | 522985 |
| Weight: | 41.37ct |
| Size: | 30 x 22 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 273.05 |
| Item in Stock | |
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| ID: | 627837 |
| Weight: | 28.09ct |
| Size: | 27 x 20 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 259.55 |
| Item in Stock | |
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| ID: | 523676 |
| Weight: | 19.94ct |
| Size: | 36.4 x 16.3 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 131.60 |
| Item in Stock | |
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| ID: | 628050 |
| Weight: | 17.73ct |
| Size: | 23.7 x 15.3 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 106.38 |
| Item in Stock | |
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| ID: | 679248 |
| Weight: | 20.10ct |
| Size: | 21.1 x 16.6 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 120.60 |
| Item in Stock | |
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| ID: | 322037 |
| Weight: | 42.73ct |
| Size: | 27 x 20 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 394.82 |
| Item in Stock | |
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| ID: | 410119 |
| Weight: | 34.16ct |
| Size: | 23.4 x 19.6 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 316.10 |
| Item in Stock | |
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| ID: | 300453 |
| Weight: | 28.58ct |
| Size: | 23.1 x 18.5 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 240.07 |
| Item in Stock | |
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| ID: | 678766 |
| Weight: | 21.16ct |
| Size: | 25.6 x 16.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 126.96 |
| Item in Stock | |
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| ID: | 523722 |
| Weight: | 33.71ct |
| Size: | 32.6 x 22.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 222.49 |
| Item in Stock | |
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| ID: | 575226 |
| Weight: | 35.99ct |
| Size: | 45 x 23.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 129.56 |
| Item in Stock | |
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| ID: | 521759 |
| Weight: | 26.43ct |
| Size: | 28.5 x 17.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 174.44 |
| Item in Stock | |
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| ID: | 523672 |
| Weight: | 30.50ct |
| Size: | 30 x 22 mm (calibrated) |
| Clarity: | Translucent |
| Content: | 1 pc |
| Price: | $ 201.30 |
| Item in Stock | |
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| ID: | 679214 |
| Weight: | 19.33ct |
| Size: | 26 x 15.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 115.98 |
| Item in Stock | |
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| ID: | 635341 |
| Weight: | 25.30ct |
| Size: | 29.7 x 13.5 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 212.52 |
| Item in Stock | |
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| ID: | 522982 |
| Weight: | 17.03ct |
| Size: | 26.9 x 13.5 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 112.40 |
| Item in Stock | |
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| ID: | 678676 |
| Weight: | 23.38ct |
| Size: | 25.3 x 16.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 140.28 |
| Item in Stock | |
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| ID: | 628027 |
| Weight: | 15.88ct |
| Size: | 23.1 x 12.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 133.39 |
| Item in Stock | |
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| ID: | 636150 |
| Weight: | 14.98ct |
| Size: | 20.2 x 13.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 104.86 |
| Item in Stock | |
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| ID: | 522986 |
| Weight: | 20.55ct |
| Size: | 31.9 x 16.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 135.64 |
| Item in Stock | |
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| ID: | 575232 |
| Weight: | 35.80ct |
| Size: | 36.6 x 19.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 141.77 |
| Item in Stock | |
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| ID: | 521754 |
| Weight: | 30.94ct |
| Size: | 25.4 x 20.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 204.20 |
| Item in Stock | |
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| ID: | 627639 |
| Weight: | 21.82ct |
| Size: | 20.7 x 16.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 201.61 |
| Item in Stock | |
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| ID: | 634610 |
| Weight: | 22.12ct |
| Size: | 27.5 x 12.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 185.81 |
| Item in Stock | |
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| ID: | 628406 |
| Weight: | 24.07ct |
| Size: | 22.2 x 18.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 144.42 |
| Item in Stock | |
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| ID: | 521765 |
| Weight: | 25.75ct |
| Size: | 21 x 18.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 169.96 |
| Item in Stock | |
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| ID: | 627636 |
| Weight: | 14.28ct |
| Size: | 23.2 x 11.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 131.95 |
| Item in Stock | |
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| ID: | 575168 |
| Weight: | 11.89ct |
| Size: | 29.6 x 9.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 42.80 |
| Item in Stock | |
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| ID: | 628031 |
| Weight: | 14.37ct |
| Size: | 16.4 x 13.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 120.71 |
| Item in Stock | |
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| ID: | 636049 |
| Weight: | 11.57ct |
| Size: | 17.3 x 12.3 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 97.19 |
| Item in Stock | |
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| ID: | 718511 |
| Weight: | 23.45ct |
| Size: | 21.7 x 17.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 140.70 |
| Item in Stock | |
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| ID: | 718646 |
| Weight: | 9.18ct |
| Size: | 16.7 x 9.6 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 55.08 |
| Item in Stock | |
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| ID: | 678773 |
| Weight: | 14.15ct |
| Size: | 17.9 x 14.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 84.90 |
| Item in Stock | |
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| ID: | 365224 |
| Weight: | 13.21ct |
| Size: | 14 x 14 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 122.06 |
| Item in Stock | |
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| ID: | 302919 |
| Weight: | 7.81ct |
| Size: | 16.4 x 10.5 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 72.17 |
| Item in Stock | |
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| ID: | 630669 |
| Weight: | 12.50ct |
| Size: | 22.8 x 11.5 mm |
| Clarity: | Translucent |
| Content: | 1 pc |
| Price: | $ 105.00 |
| Item in Stock | |
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| ID: | 628054 |
| Weight: | 11.28ct |
| Size: | 23.7 x 8.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 67.68 |
| Item in Stock | |
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| ID: | 627861 |
| Weight: | 10.97ct |
| Size: | 17 x 11.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 65.82 |
| Item in Stock | |
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| ID: | 628051 |
| Weight: | 12.72ct |
| Size: | 24.2 x 9.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 76.32 |
| Item in Stock | |
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| ID: | 635336 |
| Weight: | 16.10ct |
| Size: | 22.3 x 12.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 135.24 |
| Item in Stock | |
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| ID: | 679216 |
| Weight: | 25.69ct |
| Size: | 25.7 x 15.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 154.14 |
| Item in Stock | |
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| ID: | 522953 |
| Weight: | 13.97ct |
| Size: | 20.4 x 12.9 mm |
| Clarity: | Translucent |
| Content: | 1 pc |
| Price: | $ 92.21 |
| Item in Stock | |
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| ID: | 718512 |
| Weight: | 50.57ct |
| Size: | 35.2 x 23.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 303.42 |
| Item in Stock | |
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| ID: | 321845 |
| Weight: | 22.54ct |
| Size: | 24.8 x 20 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 208.27 |
| Item in Stock | |
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| ID: | 420744 |
| Weight: | 12.87ct |
| Size: | 21 x 10 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 101.93 |
| Item in Stock | |
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| ID: | 635340 |
| Weight: | 7.95ct |
| Size: | 18.3 x 9.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 66.78 |
| Item in Stock | |
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| ID: | 678879 |
| Weight: | 42.66ct |
| Size: | 23.8 x 21.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 255.96 |
| Item in Stock | |
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| ID: | 679242 |
| Weight: | 5.29ct |
| Size: | 17.4 x 12.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 26.45 |
| Item in Stock | |
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| ID: | 630673 |
| Weight: | 9.46ct |
| Size: | 17.9 x 12 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 79.46 |
| Item in Stock | |
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| ID: | 365230 |
| Weight: | 17.55ct |
| Size: | 19.4 x 13.3 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 162.17 |
| Item in Stock | |
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| ID: | 678876 |
| Weight: | 4.92ct |
| Size: | 15.3 x 9.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 29.52 |
| Item in Stock | |
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| ID: | 718611 |
| Weight: | 21.73ct |
| Size: | 25.7 x 20.3 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 130.38 |
| Item in Stock | |
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| ID: | 718505 |
| Weight: | 40.81ct |
| Size: | 34.3 x 24.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 244.86 |
| Item in Stock | |
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| 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 | |
| ID: | 522132 |
| Weight: | 18.28ct |
| Size: | 36.2 x 14.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 120.65 |
| Item in Stock | |
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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
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Overall Rating -> 10 
I really liked the email, and the link that help return me to the site. I didnt have access to my card info while checking out and I had to put my phone away so I lost the tab. Fortunately, since I did give an email- they sent me a link that brought me back to where I was. Greatly appreciated
Overall Rating -> 8 
Loved the lot buy options
Overall Rating -> 10
I'm happy.
Overall Rating -> 10
I found the website easy to work with. The gemstones are lovely.
Overall Rating -> 10
very good
Overall Rating -> 10
I found what I was looking for...had to look up millimeters to inches. It would be nice to see something, like a quarter, in the pix to show relative size. I plan on buy loose gemstones for every month in the calendar
Overall Rating -> 10
Very good Hoping you will increase your inventory especially in the 6mmThanks
Overall Rating -> 7 
Okay thank you.
Overall Rating -> 10
Was a good experience.
