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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 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: | 522982 |
| Weight: | 17.03ct |
| Size: | 26.9 x 13.5 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 112.40 |
| Item in Stock | |
| More Options & Item Details | |
| 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: | 410119 |
| Weight: | 34.16ct |
| Size: | 23.4 x 19.6 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 316.10 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 248000 |
| Weight: | 13.14ct |
| Size: | 19.5 x 13.5 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 121.42 |
| Item in Stock | |
| More Options & Item Details | |
| 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 | |
| ID: | 679217 |
| Weight: | 18.42ct |
| Size: | 22.4 x 14.5 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 110.52 |
| Item in Stock | |
| More Options & Item Details | |
| 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: | 626576 |
| Weight: | 8.30ct |
| Size: | 19.3 x 11 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 76.69 |
| Item in Stock | |
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| ID: | 679239 |
| Weight: | 12.62ct |
| Size: | 14 x 14 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 75.72 |
| Item in Stock | |
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| ID: | 628048 |
| Weight: | 15.41ct |
| Size: | 20 x 15 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 92.46 |
| Item in Stock | |
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| ID: | 718640 |
| Weight: | 5.11ct |
| Size: | 12.3 x 10.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 30.66 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 636159 |
| Weight: | 25.02ct |
| Size: | 29.5 x 18.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 210.17 |
| Item in Stock | |
| More Options & Item Details | |
| 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 | |
| ID: | 628051 |
| Weight: | 12.72ct |
| Size: | 24.2 x 9.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 76.32 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 718610 |
| Weight: | 16.76ct |
| Size: | 29.1 x 12.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 100.56 |
| Item in Stock | |
| More Options & Item Details | |
| 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 | |
| ID: | 718558 |
| Weight: | 8.60ct |
| Size: | 18 x 13 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 51.60 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 628029 |
| Weight: | 7.17ct |
| Size: | 22.5 x 8.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 60.23 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 678880 |
| Weight: | 6.97ct |
| Size: | 19.2 x 10.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 41.82 |
| Item in Stock | |
| More Options & Item Details | |
| 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 | |
| ID: | 679222 |
| Weight: | 5.77ct |
| Size: | 18.1 x 11.1 mm |
| Clarity: | Translucent |
| Content: | 1 pc |
| Price: | $ 34.62 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 469563 |
| Weight: | 39.95ct |
| Size: | 17.6 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 239.70 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 718606 |
| Weight: | 42.56ct |
| Size: | 36.1 x 31 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 255.36 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 522953 |
| Weight: | 13.97ct |
| Size: | 20.4 x 12.9 mm |
| Clarity: | Translucent |
| Content: | 1 pc |
| Price: | $ 92.21 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 718553 |
| Weight: | 22.81ct |
| Size: | 29.2 x 16.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 136.86 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 718607 |
| Weight: | 64.32ct |
| Size: | 42.5 x 26.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 385.92 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 636153 |
| Weight: | 16.30ct |
| Size: | 24.9 x 9.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 136.92 |
| Item in Stock | |
| More Options & Item Details | |
| 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 | |
| ID: | 679243 |
| Weight: | 11.23ct |
| Size: | 18.3 x 12.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 67.38 |
| Item in Stock | |
| More Options & Item Details | |
| 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 | |
| ID: | 321835 |
| Weight: | 8.60ct |
| Size: | 18.9 x 12.5 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 79.46 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 321921 |
| Weight: | 21.32ct |
| Size: | 27.3 x 13.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 196.99 |
| Item in Stock | |
| More Options & Item Details | |
GemSelect Certified Store Reviews
GemSelect: Over 18 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
Great for buying gemstones, came with authenticity certs. Will buy again someday!
Posted By Uggadugga in May, 2025
Source: Bizrate
Overall Rating -> 9 
I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.
Posted By Jezzi in June, 2025
Source: Bizrate
Overall Rating -> 9
It was a good experience looking for and finding a nice amethyst stone
Posted By N/a in May, 2025
Source: Bizrate
Overall Rating -> 10
I enjoy doing buisness with GemSelect. It is always a pleasure and you get what you ordered!
Posted By Ballpark in December, 2024
Source: Bizrate
Overall Rating -> 10
The selection is quite large, which is very helpful. Overall I'm very satisfied with my experience here.
Posted By Nate in June, 2024
Source: Bizrate
Overall Rating -> 10
Good products
Posted By Brave in October, 2024
Source: Bizrate
Overall Rating -> 10
Very good Hoping you will increase your inventory especially in the 6mmThanks
Posted By Ibie in February, 2025
Source: Bizrate
Overall Rating -> 10
Good selection, trusted quality. What I have purchased has always been as discribed.
Posted By Sterling in November, 2024
Source: Bizrate
Overall Rating -> 10
Helpselect accomplished all personal growth goals
Posted By Mike in October, 2024
Source: Bizrate
