Loose Untreated Gemstones: Certified Natural Gems for Collectors and Jewelry, Wholesale Untreated Stones
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Discover loose untreated gemstones in our curated selection. Find unheated sapphires, untreated rubies, and virgin untreated stones, our collection highlights the beauty of nature’s finest treasures. Perfect for engagement rings, heirloom pieces, or collectors, our certified untreated gems and GIA-certified natural gems ensure authenticity and quality. Experience the allure of authentic untreated crystals and precious untreated gemstones today. |
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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 Untreated Gemstones
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Multicolor Untreated Gemstones
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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 Untreated Gemstones
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Violet
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White
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Yellow
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
| ID: | 637207 |
| Weight: | 8.44ct |
| Size: | 21.5 x 12.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 40.51 |
| Item in Stock | |
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| ID: | 709314 |
| Weight: | 36.87ct |
| Size: | 27 x 20 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 132.73 |
| Item in Stock | |
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| ID: | 724808 |
| Weight: | 15.16ct |
| Size: | 25.5 x 15.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 54.58 |
| Item in Stock | |
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| ID: | 725018 |
| Weight: | 24.53ct |
| Size: | 22 x 14.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 73.59 |
| Item in Stock | |
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| ID: | 675910 |
| Weight: | 11.33ct |
| Size: | 15.5 x 13.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 42.55 |
| Item in Stock | |
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| ID: | 679314 |
| Weight: | 20.24ct |
| Size: | 20.2 x 16.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 73.34 |
| Item in Stock | |
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| ID: | 725022 |
| Weight: | 27.22ct |
| Size: | 21.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 97.99 |
| Item in Stock | |
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| ID: | 635627 |
| Weight: | 8.46ct |
| Size: | 19.6 x 12.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 33.84 |
| Item in Stock | |
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| ID: | 678899 |
| Weight: | 21.59ct |
| Size: | 27.2 x 15.5 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 78.24 |
| Item in Stock | |
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| ID: | 724854 |
| Weight: | 52.75ct |
| Size: | 30 x 22.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 189.90 |
| Item in Stock | |
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| ID: | 725013 |
| Weight: | 60.47ct |
| Size: | 32.8 x 17.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 217.69 |
| Item in Stock | |
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| ID: | 725197 |
| Weight: | 20.56ct |
| Size: | 21.8 x 17.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 74.02 |
| Item in Stock | |
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| ID: | 725299 |
| Weight: | 21.31ct |
| Size: | 22.1 x 13.5 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 76.72 |
| Item in Stock | |
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| ID: | 725207 |
| Weight: | 31.32ct |
| Size: | 27 x 20 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 112.75 |
| Item in Stock | |
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| ID: | 724847 |
| Weight: | 59.90ct |
| Size: | 27.9 x 20.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 179.70 |
| Item in Stock | |
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| ID: | 724930 |
| Weight: | 28.58ct |
| Size: | 23.4 x 16.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 102.89 |
| Item in Stock | |
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| ID: | 725015 |
| Weight: | 62.74ct |
| Size: | 31.4 x 26 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 225.86 |
| Item in Stock | |
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| ID: | 725437 |
| Weight: | 23.46ct |
| Size: | 22.4 x 20.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 84.46 |
| Item in Stock | |
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| ID: | 724855 |
| Weight: | 20.57ct |
| Size: | 21.8 x 16.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 74.05 |
| Item in Stock | |
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| ID: | 708205 |
| Weight: | 22.46ct |
| Size: | 25.2 x 16.6 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 80.86 |
| Item in Stock | |
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| ID: | 708768 |
| Weight: | 27.44ct |
| Size: | 22.3 x 15.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 98.78 |
| Item in Stock | |
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| ID: | 678700 |
| Weight: | 20.84ct |
| Size: | 22.4 x 13.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 75.53 |
| Item in Stock | |
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| ID: | 675442 |
| Weight: | 9.80ct |
| Size: | 14 x 12 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 36.80 |
| Item in Stock | |
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| ID: | 725196 |
| Weight: | 54.31ct |
| Size: | 27 x 20 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 195.52 |
| Item in Stock | |
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| ID: | 676315 |
| Weight: | 18.55ct |
| Size: | 18.2 x 15.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 58.06 |
| Item in Stock | |
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| ID: | 709309 |
| Weight: | 27.07ct |
| Size: | 22.9 x 17.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 97.45 |
| Item in Stock | |
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| ID: | 725204 |
| Weight: | 27.38ct |
| Size: | 27.2 x 17.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 98.57 |
| Item in Stock | |
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| ID: | 708201 |
| Weight: | 22.58ct |
| Size: | 26.5 x 15.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 81.29 |
| Item in Stock | |
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| ID: | 635171 |
| Weight: | 12.52ct |
| Size: | 21.7 x 14.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 22.91 |
| Item in Stock | |
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| ID: | 708769 |
| Weight: | 24.07ct |
| Size: | 19.7 x 15.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 86.65 |
| Item in Stock | |
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| ID: | 709317 |
| Weight: | 22.00ct |
| Size: | 24.1 x 16.3 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 79.20 |
| Item in Stock | |
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| ID: | 725429 |
| Weight: | 45.70ct |
| Size: | 32.6 x 18.5 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 164.52 |
| Item in Stock | |
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| ID: | 725205 |
| Weight: | 23.62ct |
| Size: | 26.3 x 18.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 85.03 |
| Item in Stock | |
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| ID: | 708763 |
| Weight: | 25.73ct |
| Size: | 21.7 x 16.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 92.63 |
| Item in Stock | |
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| ID: | 724940 |
| Weight: | 42.37ct |
| Size: | 25.7 x 18.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 152.53 |
| Item in Stock | |
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| ID: | 725198 |
| Weight: | 48.31ct |
| Size: | 28.8 x 21.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 173.92 |
| Item in Stock | |
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| ID: | 708206 |
| Weight: | 23.40ct |
| Size: | 22.9 x 14.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 70.20 |
| Item in Stock | |
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| ID: | 708774 |
| Weight: | 33.03ct |
| Size: | 25 x 18.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 118.91 |
| Item in Stock | |
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| ID: | 724932 |
| Weight: | 25.72ct |
| Size: | 26.1 x 17.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 92.59 |
| Item in Stock | |
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| ID: | 725206 |
| Weight: | 54.14ct |
| Size: | 28.7 x 23 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 194.90 |
| Item in Stock | |
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| ID: | 724933 |
| Weight: | 26.96ct |
| Size: | 21.6 x 17.6 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 97.06 |
| Item in Stock | |
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| ID: | 725200 |
| Weight: | 82.19ct |
| Size: | 33 x 28.5 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 295.88 |
| Item in Stock | |
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| ID: | 725017 |
| Weight: | 37.13ct |
| Size: | 27.6 x 20.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 133.67 |
| Item in Stock | |
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| ID: | 679056 |
| Weight: | 19.46ct |
| Size: | 24.8 x 15.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 70.52 |
| Item in Stock | |
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| ID: | 725303 |
| Weight: | 36.93ct |
| Size: | 22.2 x 19.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 132.95 |
| Item in Stock | |
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| ID: | 724929 |
| Weight: | 26.38ct |
| Size: | 25.2 x 14.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 94.97 |
| Item in Stock | |
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| ID: | 634758 |
| Weight: | 21.28ct |
| Size: | 24.6 x 14 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 46.73 |
| Item in Stock | |
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| ID: | 724931 |
| Weight: | 25.11ct |
| Size: | 23.9 x 13.6 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 90.40 |
| Item in Stock | |
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| ID: | 709311 |
| Weight: | 28.41ct |
| Size: | 23.5 x 18.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 102.28 |
| Item in Stock | |
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| ID: | 725305 |
| Weight: | 27.18ct |
| Size: | 25 x 18 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 97.85 |
| Item in Stock | |
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| ID: | 724939 |
| Weight: | 27.65ct |
| Size: | 25.2 x 18.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 99.54 |
| Item in Stock | |
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| ID: | 709316 |
| Weight: | 39.89ct |
| Size: | 23.8 x 18.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 143.60 |
| Item in Stock | |
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| ID: | 724938 |
| Weight: | 22.49ct |
| Size: | 24.5 x 15.5 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 80.96 |
| Item in Stock | |
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| ID: | 725201 |
| Weight: | 33.26ct |
| Size: | 27.8 x 17.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 119.74 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 709307 |
| Weight: | 28.75ct |
| Size: | 22.7 x 15.8 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 103.50 |
| Item in Stock | |
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| ID: | 725435 |
| Weight: | 26.98ct |
| Size: | 24.5 x 16.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 97.13 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 725199 |
| Weight: | 39.39ct |
| Size: | 28.1 x 18.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 141.80 |
| Item in Stock | |
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| ID: | 709308 |
| Weight: | 29.13ct |
| Size: | 25.4 x 16.9 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 104.87 |
| Item in Stock | |
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| ID: | 724845 |
| Weight: | 43.52ct |
| Size: | 29.7 x 20.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 156.67 |
| Item in Stock | |
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| ID: | 724934 |
| Weight: | 33.66ct |
| Size: | 26.6 x 18.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 121.18 |
| Item in Stock | |
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FAQs
What are loose untreated gemstones?
Loose untreated gemstones are natural stones that have not undergone any artificial treatments or enhancements. Examples include unheated sapphires, untreated rubies, and unenhanced diamonds, which maintain their natural beauty and originality.
Why should I choose untreated gemstones over treated ones?
Untreated gemstones, such as unheated topaz and virgin untreated stones, are valued for their authenticity and rarity. These certified untreated gems are perfect for collectors and those seeking ethically sourced, natural stones for unique jewelry designs.
Are untreated gemstones suitable for engagement rings?
Yes, untreated gemstones like GIA-certified natural gems, unenhanced diamonds, and untreated rubies are excellent choices for engagement rings. They offer timeless elegance and are ideal for creating one-of-a-kind designs that reflect personal style.
What makes rare untreated gems valuable for collectors?
Rare untreated gems for collectors, such as authentic untreated crystals and unheated and untreated stones, are prized for their natural appearance and limited availability. Their untouched state makes them highly desirable and a great investment.
How can I ensure the quality of loose untreated gemstones?
Always choose certified untreated gems, like GIA-certified natural gems, to guarantee authenticity and quality. These stones undergo thorough evaluation to ensure they meet the highest standards, making them ideal for both personal collections and jewelry projects.
What types of untreated gemstones are available?
Our collection includes a variety of untreated gemstones such as unheated sapphires, untreated rubies, unenhanced diamonds, and unheated topaz. Each stone is carefully selected to offer unmatched quality and natural beauty.
Are untreated gemstones more expensive than treated ones?
In many cases, untreated gemstones, like precious untreated gemstones and virgin untreated stones, can be more valuable due to their rarity and natural state. Their unique characteristics make them highly sought after by collectors and jewelry enthusiasts.
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.
Overall Rating -> 10
I searched for the size, dimensions and quality of the stones I was looking for and then compared and ordered.
Overall Rating -> 9 
I did not have any problems
Overall Rating -> 9
It is a good experience, it is easy to view the item, and easy to check out.
Overall Rating -> 10
Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.
Overall Rating -> 9
I think therea's no problem
Overall Rating -> 10
So far, my experience was great...Thanks
Overall Rating -> 10
I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring
Overall Rating -> 8 
First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.
