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 Untreated Gemstones
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Black Untreated Gemstones
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Blue Untreated Gemstones
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Brown Untreated Gemstones
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Golden Untreated Gemstones
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Gray Untreated Gemstones
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Green Untreated Gemstones
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Multicolor Untreated Gemstones
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Orange Untreated Gemstones
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Pink Untreated Gemstones
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Purple Untreated Gemstones
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Red Untreated Gemstones
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Turquoise Untreated Gemstones
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Violet Untreated Gemstones
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White Untreated Gemstones
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Yellow Untreated Gemstones
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
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| ID: | 612073 |
| Weight: | 12.95ct |
| Size: | 16 mm (calibrated) |
| Clarity: | Transparent |
| Content: | 1 pc |
| Price: | $ 51.29 |
| Item in Stock | |
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| ID: | 564801 |
| Weight: | 0.86ct |
| Size: | 5.5 x 4.6 mm |
| Clarity: | SI |
| Content: | 1 pc |
| Price: | $ 355.79 |
| Item in Stock | |
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| ID: | 323449 |
| Weight: | 24.80ct (total) |
| Size: | 16 x 16 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 32.74 |
| Item in Stock | |
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| ID: | 488996 |
| Weight: | 33.54ct |
| Size: | 20.5 x 18.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 68.05 |
| Item in Stock | |
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| ID: | 346704 |
| Weight: | 205.80ct |
| Size: | 55.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 185.22 |
| Item in Stock | |
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| ID: | 560924 |
| Weight: | 0.75ct |
| Size: | 5 mm (calibrated) |
| Clarity: | VS-SI |
| Content: | 1 pc |
| Price: | $ 34.65 |
| Item in Stock | |
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| ID: | 673941 |
| Weight: | 9.38ct |
| Size: | 16 x 12 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 112.46 |
| Item in Stock | |
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| ID: | 514179 |
| Weight: | 24.86ct (total) |
| Size: | 18.7 x 12.5 mm |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 64.97 |
| Item in Stock | |
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| ID: | 680004 |
| Weight: | 21.58ct |
| Size: | 16 x 16 mm (calibrated) |
| Clarity: | VVS-VS |
| Content: | 1 pc |
| Price: | $ 207.17 |
| Item in Stock | |
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| ID: | 491663 |
| Weight: | 56.12ct (total) |
| Size: | 20 x 15 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 2 pcs |
| Price: | $ 65.94 |
| Item in Stock | |
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| ID: | 514974 |
| Weight: | 8.34ct |
| Size: | 16 x 12 mm (calibrated) |
| Clarity: | VVS-VS |
| Content: | 1 pc |
| Price: | $ 77.06 |
| Item in Stock | |
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| ID: | 460459 |
| Weight: | 4.62ct (total) |
| Size: | 7.4 x 7.2 mm |
| Clarity: | VS-SI |
| Content: | 2 pcs |
| Price: | $ 9,702.00 |
| Item in Stock | |
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| ID: | 508372 |
| Weight: | avg. 7.55 ct / each |
| Size: | 16 x 12 mm (calibrated) |
| Clarity: | VVS-VS |
| Price: | $ 58.15 |
| Item in Stock | |
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pcs
| ID: | 573982 |
| Weight: | 1.73ct |
| Size: | 8 x 6 mm (calibrated) |
| Clarity: | VS-SI |
| Content: | 1 pc |
| Price: | $ 38.06 |
| Item in Stock | |
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| ID: | 460455 |
| Weight: | 5.00ct |
| Size: | 9 x 9 mm (calibrated) |
| Clarity: | VS |
| Content: | 1 pc |
| Price: | $ 11,088.00 |
| Item in Stock | |
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| ID: | 601420 |
| Weight: | 7.22ct |
| Size: | 17.1 x 12 mm |
| Clarity: | VS |
| Content: | 1 pc |
| Price: | $ 35.08 |
| Item in Stock | |
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| ID: | 564607 |
| Weight: | 0.17ct |
| Size: | 3.5 mm (calibrated) |
| Clarity: | VS |
| Content: | 1 pc |
| Price: | $ 339.92 |
| Item in Stock | |
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| ID: | 403262 |
| Weight: | 43.72ct |
| Size: | 22 x 19 mm |
| Clarity: | Translucent |
| Content: | 1 pc |
| Price: | $ 807.95 |
| Item in Stock | |
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| ID: | 694477 |
| Weight: | 20.59ct |
| Size: | 18 x 18 mm (calibrated) |
| Clarity: | VVS |
| Content: | 1 pc |
| Price: | $ 144.13 |
| Item in Stock | |
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| ID: | 650033 |
| Weight: | 1.36ct |
| Size: | 7 mm (calibrated) |
| Clarity: | VVS |
| Content: | 1 pc |
| Price: | $ 11.42 |
| Item in Stock | |
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| ID: | 588905 |
| Weight: | 18.47ct |
| Size: | 20.9 x 15 mm |
| Clarity: | VS |
| Content: | 1 pc |
| Price: | $ 121.90 |
| Item in Stock | |
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| ID: | 365836 |
| Weight: | 39.03ct |
| Size: | 33.5 x 33.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 77.27 |
| Item in Stock | |
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| ID: | 573422 |
| Weight: | 1.90ct |
| Size: | 13 x 9 mm (calibrated) |
| Clarity: | Translucent |
| Content: | 1 pc |
| Price: | $ 75.24 |
| Item in Stock | |
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| ID: | 391410 |
| Weight: | 130.91ct |
| Size: | 47 x 43.6 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 518.40 |
| Item in Stock | |
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| ID: | 692500 |
| Weight: | 39.09ct |
| Size: | 34.6 x 24.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 21.58 |
| Item in Stock | |
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| ID: | 644905 |
| Weight: | 2.38ct |
| Size: | 10 x 8 mm (calibrated) |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 28.67 |
| Item in Stock | |
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| ID: | 521446 |
| Weight: | 42.66ct |
| Size: | 25.1 mm |
| Clarity: | Transparent |
| Content: | 1 pc |
| Price: | $ 337.87 |
| Item in Stock | |
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| ID: | 619767 |
| Weight: | 10.67ct |
| Size: | 15 x 15 mm (calibrated) |
| Clarity: | VVS |
| Content: | 1 pc |
| Price: | $ 53.95 |
| Item in Stock | |
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| ID: | 679959 |
| Weight: | 28.28ct |
| Size: | 23.1 x 17.5 mm |
| Clarity: | VVS-VS |
| Content: | 1 pc |
| Price: | $ 271.49 |
| Item in Stock | |
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| ID: | 678175 |
| Weight: | 5.19ct |
| Size: | 13.4 x 10.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 10.38 |
| Item in Stock | |
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| ID: | 668517 |
| Weight: | 31.32ct |
| Size: | 25 x 15 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 156.60 |
| Item in Stock | |
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| ID: | 530659 |
| Weight: | 1.53ct |
| Size: | 6.7 x 5.3 mm |
| Clarity: | VS |
| Content: | 1 pc |
| Price: | $ 141.37 |
| Item in Stock | |
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| ID: | 693994 |
| Weight: | 1.36ct |
| Size: | 6.4 x 5.2 mm |
| Clarity: | VVS |
| Content: | 1 pc |
| Price: | $ 68.00 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 521754 |
| Weight: | 30.94ct |
| Size: | 25.4 x 20.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 204.20 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 485915 |
| Weight: | 6.48ct |
| Size: | 14.8 x 11.7 mm |
| Clarity: | Translucent |
| Content: | 1 pc |
| Price: | $ 54.43 |
| Item in Stock | |
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| ID: | 715680 |
| Weight: | 0.90ct |
| Size: | 8.7 x 4.1 mm |
| Clarity: | VS |
| Content: | 1 pc |
| Price: | $ 47.70 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 497338 |
| Weight: | 5.68ct |
| Size: | 12 mm (calibrated) |
| Clarity: | VVS |
| Content: | 1 pc |
| Price: | $ 31.24 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 636448 |
| Weight: | 13.24ct |
| Size: | 21.6 x 16.4 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 63.55 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 662869 |
| Weight: | 5.38ct (total) |
| Size: | 9 x 7 mm (calibrated) |
| Clarity: | VS-SI |
| Content: | 2 pcs |
| Price: | $ 107.60 |
| Item in Stock | |
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| ID: | 492113 |
| Weight: | 6.39ct |
| Size: | 17.8 x 9.1 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 18.47 |
| Item in Stock | |
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| ID: | 513650 |
| Weight: | 127.45ct |
| Size: | 28.6 x 26.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 2,102.93 |
| Item in Stock | |
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| ID: | 349030 |
| Weight: | 43.68ct |
| Size: | 34.3 x 24.2 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 48.05 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 660001 |
| Weight: | 1.60ct |
| Size: | 7.7 x 6.4 mm |
| Clarity: | VS |
| Content: | 1 pc |
| Price: | $ 38.40 |
| Item in Stock | |
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| ID: | 526454 |
| Weight: | avg. 12.53 ct / each |
| Size: | 12 mm (calibrated) |
| Clarity: | Opaque |
| Price: | $ 15.16 |
| Item in Stock | |
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pcs
| ID: | 545834 |
| Weight: | 34.60ct |
| Size: | 32.1 x 17.7 mm |
| Clarity: | Translucent |
| Content: | 1 pc |
| Price: | $ 36.54 |
| Item in Stock | |
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| ID: | 433017 |
| Weight: | 76.12ct |
| Size: | 41.4 x 34.5 mm |
| Clarity: | Translucent |
| Content: | 1 pc |
| Price: | $ 73.08 |
| Item in Stock | |
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| ID: | 696780 |
| Weight: | 5.84ct |
| Size: | 17 x 17 mm (calibrated) |
| Clarity: | SI |
| Content: | 1 pc |
| Price: | $ 560.64 |
| Item in Stock | |
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| ID: | 645799 |
| Weight: | 19.31ct |
| Size: | 17.9 x 13.7 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 60.25 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 443107 |
| Weight: | 3.60ct |
| Size: | 11.9 x 8.3 mm |
| Clarity: | VS |
| Content: | 1 pc |
| Price: | $ 593.56 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 441222 |
| Weight: | 9.49ct |
| Size: | 17.3 x 8.8 mm |
| Clarity: | VS |
| Content: | 1 pc |
| Price: | $ 313.18 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 690459 |
| Weight: | 8.97ct |
| Size: | 20.7 x 15.7 mm |
| Clarity: | Transparent |
| Content: | 1 pc |
| Price: | $ 294.36 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 671191 |
| Weight: | 55.63ct |
| Size: | 33.6 x 23 mm |
| Clarity: | Translucent |
| Content: | 1 pc |
| Price: | $ 119.60 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 523676 |
| Weight: | 19.94ct |
| Size: | 36.4 x 16.3 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 131.60 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 219857 |
| Weight: | 9.09ct |
| Size: | 16 x 12 mm (calibrated) |
| Clarity: | Translucent |
| Content: | 1 pc |
| Price: | $ 53.99 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 564620 |
| Weight: | 0.30ct |
| Size: | 4.5 mm (calibrated) |
| Clarity: | VS |
| Content: | 1 pc |
| Price: | $ 549.88 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 472172 |
| Weight: | 8.10ct |
| Size: | 12.5 x 10 mm |
| Clarity: | Opaque |
| Content: | 1 pc |
| Price: | $ 32.08 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 678331 |
| Weight: | 2.17ct |
| Size: | 7.6 x 7.2 mm |
| Clarity: | VS |
| Content: | 1 pc |
| Price: | $ 78.12 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 572426 |
| Weight: | 12.71ct (total) |
| Size: | 14.9 x 11 mm |
| Clarity: | VVS-VS |
| Content: | 2 pcs |
| Price: | $ 41.94 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 375266 |
| Weight: | 2.92ct |
| Size: | 8.4 x 6.7 mm |
| Clarity: | VS |
| Content: | 1 pc |
| Price: | $ 102.20 |
| Item in Stock | |
| More Options & Item Details | |
| ID: | 547772 |
| Weight: | 2.50ct |
| Size: | 7 x 7 mm (calibrated) |
| Clarity: | SI |
| Content: | 1 pc |
| Price: | $ 50.66 |
| 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 
I searched for the size, dimensions and quality of the stones I was looking for and then compared and ordered.
Posted By Tim in March, 2025
Source: Bizrate
Overall Rating -> 10
I have purchased stones from gem select in the past and have been very satisfied. I expect to repeat that experience with this purchase as well
Posted By Marti in July, 2025
Source: Bizrate
Overall Rating -> 10
I found exactly what I was looking for and ordered it. I like how you give information on the stones I'm buying. Glad I found you!
Posted By TheP in April, 2025
Source: Bizrate
Overall Rating -> 8 
great experience
Posted By T in December, 2024
Source: Bizrate
Overall Rating -> 8
The website was nice and I bought some gems
Posted By Jay in December, 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, using for custom jewlery for my wife.
Posted By Smitty in June, 2025
Source: Bizrate
Overall Rating -> 10
It's mostly good, only some item's are easier to find through the search than the menu
Posted By Wayne in July, 2025
Source: Bizrate
Overall Rating -> 10
All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.
Posted By G.W. in June, 2025
Source: Bizrate
