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Natural Cabochon Gemstones

Browse our collection of natural cabochon gemstones, featuring smooth domed cuts perfect for jewelry and gemstone collecting.

Cabochon Gemstones Weight
Cabochon Gemstones Size
Cabochon Gemstones Clarity
Cabochon Gemstones Price
Cabochon Gemstones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color
Black
Blue
Brown
Golden
Gray
Green
Multicolor Cabochon Gemstones
Orange
Pink
Purple
Red
Turquoise
Violet
White
Yellow
Single
Pairs
Lots
Faceted
Cabochons
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50.24ct Multicolor Boulder Opal, Oval, Opaque

32.3 x 24.3 mm

$ 301.44

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21.73ct Multicolor Boulder Opal, Fancy, Opaque

25.7 x 20.3 mm

$ 130.38

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11.03ct Multicolor Boulder Opal, Pear Shape, Opaque

22.7 x 12.8 mm

$ 92.65

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5.29ct Multicolor Boulder Opal, Fancy, Opaque

17.4 x 12.2 mm

$ 26.45

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11.57ct Multicolor Boulder Opal, Oval, Opaque

17.3 x 12.3 mm

$ 97.19

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9.86ct Multicolor Boulder Opal, Oval, Opaque

20.4 x 11.2 mm

$ 59.16

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17.99ct Multicolor Boulder Opal, Fancy, Opaque

9.7 x 17.3 mm

$ 107.94

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10.79ct Multicolor Boulder Opal, Fancy, Opaque

23.3 x 13.3 mm

$ 64.74

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6.17ct Multicolor Boulder Opal, Trillion, Opaque

14 x 14 mm (calibrated)

$ 37.02

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27.89ct Multicolor Boulder Opal, Fancy, Opaque

25.7 x 23.1 mm

$ 167.34

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8.68ct Multicolor Boulder Opal, Fancy, Opaque

20 x 15 mm (calibrated)

$ 52.08

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10.02ct Multicolor Boulder Opal, Oval, Opaque

20.8 x 14.2 mm

$ 60.12

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11.60ct Multicolor Boulder Opal, Fancy, Opaque

19.8 x 15.7 mm

$ 69.60

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17.39ct Multicolor Boulder Opal, Fancy, Translucent

23.5 x 16.7 mm

$ 86.95

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22.64ct Multicolor Boulder Opal, Oval, Opaque

30.5 x 13.4 mm

$ 135.84

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20.92ct Multicolor Boulder Opal, Oval, Opaque

25.5 x 14.9 mm

$ 193.30

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18.28ct Multicolor Boulder Opal, Marquise, Opaque

36.2 x 14.4 mm

$ 120.65

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8.55ct Multicolor Boulder Opal, Cushion, Opaque

16 x 13.6 mm

$ 42.75

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15.09ct Multicolor Boulder Opal, Oval, Opaque

18.5 x 14.6 mm

$ 126.76

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9.18ct Multicolor Boulder Opal, Cushion, Opaque

16.7 x 9.6 mm

$ 55.08

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2.03ct Multicolor Boulder Opal, Fancy, Opaque

9.3 x 7.2 mm

$ 10.15

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6.16ct Multicolor Boulder Opal, Fancy, Opaque

16.7 x 9.7 mm

$ 36.96

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8.32ct Multicolor Boulder Opal, Pear Shape, Opaque

18.8 x 10.2 mm

$ 69.89

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11.73ct Multicolor Boulder Opal, Round, Translucent

19 mm (calibrated)

$ 98.53

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Why Buy Cabochon Gemstones from GemSelect?

Natural Cabochon Gemstones

Our natural cabochon gemstones are carefully selected for color, quality and beauty. The smooth domed surface highlights the natural patterns and optical effects of many gems, making cabochons ideal for unique jewelry designs.

Cabochon Gemstones Online

Buy cabochon gemstones online at GemSelect with confidence. We offer a wide selection of loose cabochon gems including opal, moonstone, turquoise, labradorite and many more, all available with secure checkout and worldwide shipping.

Loose Cabochon Gemstones for Jewelry Making

What Are Cabochon Cut Gemstones?

Cabochon cut gemstones feature a polished, rounded top with a flat or slightly domed base instead of facets. This classic gemstone cut is used to emphasize color, transparency, and special optical effects such as star stones, chatoyancy, and color play.

Popular Cabochon Gemstones

Many gemstones are traditionally cut as cabochons. Popular choices include opal cabochons with vibrant color play, moonstone cabochons displaying adularescence, turquoise cabochons prized for their rich color, and star sapphires that show asterism.

Cabochon Stones for Jewelry

Cabochon stones are widely used in rings, pendants, bracelets and earrings. Their smooth surface and bold appearance make them ideal for bezel settings and statement jewelry pieces.

Unique Optical Effects in Cabochon Gems

The cabochon cut is essential for gemstones that display optical phenomena. Star sapphires, star rubies, cat's eye chrysoberyl and many moonstones require the cabochon shape to reveal these special visual effects.

Loose Cabochon Gemstones for Collectors

Loose cabochon gemstones are popular among collectors because they often showcase natural patterns, inclusions, and color zoning that would be hidden in faceted stones. Each gem has its own distinctive appearance.

Choosing the Right Cabochon Gemstone

When selecting a cabochon gemstone, consider color saturation, surface polish, symmetry and dome height. High quality cabochons have even curvature, excellent polish and vibrant natural color.

Learn more about gemstone cuts and shapes on our Gemstone Cutting Information Page.

FAQs

What is a cabochon gemstone?

A cabochon gemstone is a stone that has been polished into a smooth, rounded shape without facets. It typically has a domed top and flat base.

Why are some gemstones cut as cabochons instead of faceted?

Some gemstones display special optical effects or natural patterns that are best shown with a cabochon cut. Others may not be transparent enough for faceting.

Which gemstones are commonly cut as cabochons?

Common cabochon gemstones include opal, turquoise, moonstone, labradorite, chrysoberyl, star sapphire, jade, and many opaque or translucent stones.

Are cabochon gemstones suitable for jewelry?

Yes, cabochon gemstones are widely used in jewelry. Their smooth surface works well with bezel settings and bold jewelry designs.

Can I buy loose cabochon gemstones at GemSelect?

Yes, GemSelect offers a large selection of loose cabochon gemstones in many sizes, colors and gemstone varieties suitable for jewelry making or collecting.

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

I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.

Posted By Razormane in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love, and have always loved, your website.

Posted By Aberabic in July, 2025
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Overall Rating -> 10 star ratings

the selection is good as are the prices

Posted By Old man in August, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I love wide range of stones. Always have my preference.

Posted By Ray in April, 2025
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Overall Rating -> 10 star ratings

I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

Posted By MVK in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I've purchased from here many times over the last decade+. I find the information easy to understand, helpful, and interesting. I have always been satisfied that I got exactly what I ordered. Pictures and descriptions are clear and unique to each stone.

Posted By Maggie in August, 2025
Source: Bizrate
Enlarged Gemstone Image