X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

Loose Untreated Gemstones: Certified Natural Gems for Collectors and Jewelry, Wholesale Untreated Stones

Untreated Gemstones Weight
Untreated Gemstones Size
Untreated Gemstones Clarity
Untreated Gemstones Price
Untreated Gemstones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color Untreated Gemstones
Black Untreated Gemstones
Blue Untreated Gemstones
Brown Untreated Gemstones
Golden Untreated Gemstones
Gray Untreated Gemstones
Green Untreated Gemstones
Multicolor Untreated Gemstones
Orange Untreated Gemstones
Pink Untreated Gemstones
Purple Untreated Gemstones
Red Untreated Gemstones
Turquoise Untreated Gemstones
Violet Untreated Gemstones
White Untreated Gemstones
Yellow Untreated Gemstones
Single
Pairs
Lots
Faceted
Cabochons
Clear All
  • Actual Product Photos
  • Reliable Quality
  • Full Transparency
  • Large Selection
  • Affordable Prices
  • Fast, Secure Global Shipping
ID: 656175
Weight: 1.37ct
Size: 10 x 5 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 2.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 692980
Weight: 22.53ct
Size: 33.2 x 9.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 8.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 544830
Weight: 0.97ct
Size: 6.3 x 4.6 mm
Clarity: VS
Content: 1 pc
Price: $ 43.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 474962
Weight: 1.85ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 61.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 727284
Weight: 1.35ct
Size: 6.1 x 5.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 81.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 570390
Weight: 1.83ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 43.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 566966
Weight: 5.36ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 16.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 539798
Weight: 0.85ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 8.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 608479
Weight: 3.27ct (total)
Size: 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 60.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 349490
Weight: 1.06ct
Size: 7.8 x 5.4 mm
Clarity: SI
Content: 1 pc
Price: $ 136.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 413957
Weight: 2.31ct
Size: 9.1 x 6.7 mm
Clarity: SI
Content: 1 pc
Price: $ 304.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 650579
Weight: 3.30ct (total)
Size: 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 27.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 406799
Weight: 3.43ct (total)
Size: 7 x 5.5 mm
Clarity: VS
Content: 4 pcs
Price: $ 164.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 660335
Weight: 10.07ct
Size: 14 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 24.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 555888
Weight: 8.33ct
Size: 16 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 63.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 475339
Weight: 4.80ct
Size: 17.4 x 8.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 66.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 554925
Weight: 1.20ct
Size: 8 x 5.7 mm
Clarity: SI
Content: 1 pc
Price: $ 31.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 565364
Weight: 1.29ct
Size: 6.3 x 4.9 mm
Clarity: VS
Content: 1 pc
Price: $ 29.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 390605
Weight: 22.82ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 36.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 550509
Weight: 4.30ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 33.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 666911
Weight: 97.36ct (total)
Size: 43.6 x 29.3 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 1,752.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 446174
Weight: 2.43ct
Size: 9.1 x 6.6 mm
Clarity: VS
Content: 1 pc
Price: $ 116.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 349316
Weight: 1.27ct
Size: 8.6 x 5.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 163.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 422371
Weight: 1.75ct
Size: 11.8 x 4.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 101.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 486948
Weight: 23.57ct
Size: 30.7 x 9.5 mm
Clarity: VVS
Content: 1 pc
Price: $ 4,242.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 570380
Weight: 2.97ct
Size: 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 21.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 676454
Weight: 21.22ct
Size: 20.4 x 16.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 229.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 462065
Weight: 8.02ct (total)
Size: 12 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 95.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 680787
Weight: 1.32ct
Size: 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 39.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 558085
Weight: 3.27ct
Size: 9.5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 28.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 511710
Weight: 0.94ct
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 55.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 690556
Weight: 7.64ct
Size: 14 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 149.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 460460
Weight: 3.45ct (total)
Size: 6.8 x 6.6 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 9,563.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 662967
Weight: 1.35ct
Size: 7.2 x 5.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 8.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 398839
Weight: 5.56ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 4 pcs
Price: $ 146.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 467863
Weight: 4.10ct (total)
Size: 3 mm (calibrated)
Clarity: Transparent
Content: 20 pcs
Price: $ 28.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 716441
Weight: 18.67ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 179.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 554614
Weight: 1.06ct
Size: 8.1 x 5.7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 27.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 719350
Weight: 3.02ct
Size: 10 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 90.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 701132
Weight: 1.89ct
Size: 12 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 56.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 705701
Weight: 28.28ct
Size: 22.9 x 16.4 mm
Clarity: SI
Content: 1 pc
Price: $ 75.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 390171
Weight: 20.28ct
Size: 24.7 x 16.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 53.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 715781
Weight: 3.64ct (total)
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 34.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 659950
Weight: 5.35ct
Size: 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 10.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 529734
Weight: 22.95ct
Size: 35.6 x 9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 13.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 694380
Weight: 49.73ct
Size: 35.3 x 27.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 53.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 708636
Weight: 2.31ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 39.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 665044
Weight: 5.39ct
Size: 15.7 x 11.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 45.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 485163
Weight: 3.77ct
Size: 13 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 19.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 720112
Weight: 1.02ct
Size: 5.8 x 5.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 98.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 715763
Weight: 25.46ct
Size: 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 244.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 691689
Weight: 1.46ct
Size: 11.9 x 6.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 78.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 711515
Weight: 0.86ct
Size: 6.4 x 5.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 17.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 391879
Weight: 41.53ct
Size: 28.2 x 27.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 49.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 628114
Weight: 1.62ct
Size: 7.6 x 5.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 48.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 648845
Weight: 16.27ct (total)
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 29.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 486185
Weight: 3.56ct
Size: 10 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 27.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 392906
Weight: 2.52ct (total)
Size: 5.7 x 5.7 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 66.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 438438
Weight: 14.30ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 56.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 657431
Weight: 1.77ct
Size: 8 x 6 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 1.77
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
27
Choose Page
1 - 780

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 star ratings

I love the quality, presentation and the price of the stones. I love the identification card - report they send with each stone.

Posted By Dia in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

went well

Posted By Doug in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Appreciated the selection. Jadeite is hard to find under $100. Website has alot of variety.

Posted By Jess in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I like the way your website shows us what stone were buying as well the easy way to navigate the site. also knowing the stones are real...

Posted By RED in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love gemstones. My father was a jeweler & I used to shop for stones for him.

Posted By Andie in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Nice website I just don't know much about the quality until I receive the stone.

Posted By Becky in December, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

Loved the lot buy options

Posted By BDG in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

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

Overall Rating -> 10 star ratings

I always enjoy the selection and the unique cuts I can find here. I would love to see more hex cuts tho! Maybe some rose cuts too!

Posted By Blkfower83 in October, 2024
Source: Bizrate

Why Choose Loose Untreated Gemstones?

Selecting loose untreated gemstones ensures you’re investing in authentic, natural beauty. Gems like unheated sapphires, untreated rubies, and unenhanced diamonds retain their original allure, free from artificial enhancements. These certified untreated gems are ideal for those seeking unique, ethical, and high-quality stones for custom jewelry or collections.

Perfect for Engagement Rings and Collectors

Our untreated gemstones, including GIA-certified natural gems, are highly sought after for engagement rings and collector’s pieces. With options like unheated topaz and virgin untreated stones, you can create a timeless design that reflects your individual style. Each gem is carefully selected for its purity and brilliance.

Rare and Exquisite Natural Gems

From authentic untreated crystals to precious untreated gemstones, our collection offers something for every taste. These rare untreated gems for collectors are perfect for showcasing the natural beauty of stones like unheated and untreated stones that remain untouched by enhancements, preserving their natural value and appeal.

Quality Assurance You Can Trust

Every stone in our selection of loose untreated gemstones is thoroughly inspected to meet the highest standards. Whether you’re looking for untreated gemstones for engagement rings or certified untreated gems for a special project, our collection ensures authenticity and unparalleled quality.

Read All

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

I love the quality, presentation and the price of the stones. I love the identification card - report they send with each stone.

Posted By Dia in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

went well

Posted By Doug in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Appreciated the selection. Jadeite is hard to find under $100. Website has alot of variety.

Posted By Jess in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I like the way your website shows us what stone were buying as well the easy way to navigate the site. also knowing the stones are real...

Posted By RED in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love gemstones. My father was a jeweler & I used to shop for stones for him.

Posted By Andie in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Nice website I just don't know much about the quality until I receive the stone.

Posted By Becky in December, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

Loved the lot buy options

Posted By BDG in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

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

Overall Rating -> 10 star ratings

I always enjoy the selection and the unique cuts I can find here. I would love to see more hex cuts tho! Maybe some rose cuts too!

Posted By Blkfower83 in October, 2024
Source: Bizrate

FAQ's

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.

Enlarged Gemstone Image