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: 472285
Weight: 17.53ct
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 134.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 470775
Weight: 84.82ct
Size: 41.6 x 31.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 81.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 691799
Weight: 0.63ct
Size: 6 x 4.4 mm
Clarity: VS
Content: 1 pc
Price: $ 52.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 384216
Weight: 6.69ct
Size: 13 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 946.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 594887
Weight: 9.27ct
Size: 14 x 14 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 122.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 448580
Weight: 1.21ct
Size: 7.4 x 5.4 mm
Clarity: VS
Content: 1 pc
Price: $ 641.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 694477
Weight: 20.59ct
Size: 18 x 18 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 144.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 589834
Weight: 2.65ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 79.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 403850
Weight: 7.49ct
Size: 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 39.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 338676
Weight: 2.97ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 135.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 701059
Weight: 5.14ct
Size: 9 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 4.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 654798
Weight: 7.18ct
Size: 11.9 x 10.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 94.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 457919
Weight: 0.93ct
Size: 9.1 x 5 mm
Clarity: VS
Content: 1 pc
Price: $ 81.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 422880
Weight: 4.47ct
Size: 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 29.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 438431
Weight: 15.82ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 62.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 481443
Weight: 1.64ct
Size: 6.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 47.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 655916
Weight: 16.68ct
Size: 31.8 x 15.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 85.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 256344
Weight: 31.12ct
Size: 21.4 x 20.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 653.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 667936
Weight: 48.08ct
Size: 40.1 x 27.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 173.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 206335
Weight: 3.45ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VS-SI
Content: 9 pcs
Price: $ 204.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 521442
Weight: 25.27ct
Size: 32.3 x 14.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 200.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 546196
Weight: 1.13ct
Size: 6.5 x 5.5 mm
Clarity: VS
Content: 1 pc
Price: $ 80.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 402811
Weight: 1.26ct
Size: 7.4 x 5.5 mm
Clarity: VS
Content: 1 pc
Price: $ 170.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 416969
Weight: 6.73ct
Size: 10.8 x 9.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 35.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 501048
Weight: 5.71ct
Size: 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 52.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 638176
Weight: 0.36ct
Size: 5.2 x 3.3 mm
Clarity: VS
Content: 1 pc
Price: $ 37.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 361853
Weight: 9.91ct (total)
Size: 10 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 42.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 564626
Weight: 0.18ct
Size: 3.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 395.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 485062
Weight: 28.92ct
Size: 37.5 x 14 mm
Clarity: Translucent
Content: 1 pc
Price: $ 63.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 449692
Weight: 5.50ct (total)
Size: 7.4 x 6.2 mm
Clarity: Transparent
Content: 4 pcs
Price: $ 36.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 447934
Weight: 37.71ct
Size: 50 x 18 mm
Clarity: Opaque
Content: 1 pc
Price: $ 18.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 668876
Weight: 9.93ct
Size: 16.2 x 12.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 214.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 445414
Weight: 18.83ct
Size: 20 x 15 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 519.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 383598
Weight: 1.92ct
Size: 8.1 x 6.3 mm
Clarity: VS
Content: 1 pc
Price: $ 89.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 604641
Weight: 20.92ct
Size: 22.1 x 16 mm
Clarity: Transparent
Content: 1 pc
Price: $ 103.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 499173
Weight: 2.12ct
Size: 10.9 x 5.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 419.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 472934
Weight: 11.45ct (total)
Size: 19 x 10.3 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 125.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 601422
Weight: 5.13ct
Size: 12 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 24.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 415695
Weight: 1.18ct
Size: 8.8 x 5.2 mm
Clarity: SI
Content: 1 pc
Price: $ 948.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 605440
Weight: 25.29ct (total)
Size: 18.2 x 11.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 39.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 643669
Weight: 6.35ct
Size: 25.3 x 9.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 53.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 678129
Weight: 0.14ct
Size: 2.6 x 2.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 84.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 334362
Weight: 2.84ct
Size: 9.8 x 7.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 102.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 546440
Weight: avg. 1.11 ct / each
Size: 6 mm (calibrated)
Clarity: SI-I1
Price: $ 18.77
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 490136
Weight: 1.46ct
Size: 6.8 x 6.4 mm
Clarity: VS
Content: 1 pc
Price: $ 129.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 687204
Weight: 0.30ct
Size: 5 x 4 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 12.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 264265
Weight: 40.56ct
Size: 22 x 17.5 mm
Clarity: VVS
Content: 1 pc
Price: $ 12,995.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 460268
Weight: 4.85ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 64.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 674275
Weight: 18.15ct
Size: 21.9 x 16.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 272.25
Item in Stock
More Options & Item Details
Add to Cart
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
Add to Cart
ID: 442155
Weight: 3.89ct (total)
Size: 7 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 85.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 491463
Weight: 43.96ct
Size: 36.4 x 24.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 77.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 408327
Weight: 2.89ct
Size: 9.6 x 8.3 mm
Clarity: VS
Content: 1 pc
Price: $ 95.38
Item in Stock
More Options & Item Details
Add to Cart
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
Add to Cart
ID: 473648
Weight: 0.93ct (total)
Size: 3.8 mm
Clarity: VS
Content: 4 pcs
Price: $ 149.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 602284
Weight: 2.72ct
Size: 8 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 89.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 693457
Weight: 7.76ct
Size: 13 x 10.7 mm
Clarity: VVS
Content: 1 pc
Price: $ 257.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 690766
Weight: 1.32ct
Size: 7 x 5 mm (calibrated)
Clarity: I1
Content: 1 pc
Price: $ 79.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 298860
Weight: 9.30ct
Size: 16 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 57.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 692707
Weight: 29.03ct
Size: 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 203.21
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
9
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

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

This was a great time as always. The only problem I had was deciding between all the beautiful and affordable stones that met my requirements. I love shopping for sapphires!

Posted By Phoenix in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I have bought many stones from GemsSelect and have been very satisfied with all!I will continue to buy and recommend this site!

Posted By DG in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was my second time so I understand what it is to do

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I did not have any problems

Posted By Clilrichard in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic

Posted By Steve m. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

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

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It is a good experience, it is easy to view the item, and easy to check out.

Posted By Neo in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones. .

Posted By Steven M. in February, 2025
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

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

This was a great time as always. The only problem I had was deciding between all the beautiful and affordable stones that met my requirements. I love shopping for sapphires!

Posted By Phoenix in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I have bought many stones from GemsSelect and have been very satisfied with all!I will continue to buy and recommend this site!

Posted By DG in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was my second time so I understand what it is to do

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I did not have any problems

Posted By Clilrichard in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic

Posted By Steve m. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

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

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It is a good experience, it is easy to view the item, and easy to check out.

Posted By Neo in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones. .

Posted By Steven M. in February, 2025
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