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: 428278
Weight: 37.82ct
Size: 26.7 x 24.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 33.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 562901
Weight: 4.98ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 46.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 299737
Weight: 6.03ct
Size: 22 x 7.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 21.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 706490
Weight: 11.55ct
Size: 14.3 x 13.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 23.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 449737
Weight: 5.61ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 37.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 725208
Weight: 0.77ct
Size: 9.9 x 3.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 32.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 696881
Weight: 11.23ct (total)
Size: 15.2 x 9.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 80.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 414371
Weight: 6.87ct
Size: 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 45.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 460768
Weight: 1.95ct (total)
Size: 7.8 x 4 mm
Clarity: VVS-VS
Content: 4 pcs
Price: $ 205.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 704923
Weight: 0.98ct
Size: 10 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 29.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 649011
Weight: 0.66ct
Size: 8 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 6.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 633087
Weight: 14.31ct (total)
Size: 25.5 x 10.1 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 65.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 388832
Weight: 1.15ct
Size: 10.6 x 5.5 mm
Clarity: VS
Content: 1 pc
Price: $ 73.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 714970
Weight: 12.91ct
Size: 14 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 33.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 475723
Weight: 21.66ct
Size: 18.5 x 15.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 28.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 565146
Weight: 0.14ct (total)
Size: 2.7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 306.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 561376
Weight: 12.43ct
Size: 20.9 x 9.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 29.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 636619
Weight: 0.92ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 48.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 497196
Weight: 31.45ct
Size: 31.8 x 21.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 26.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 585533
Weight: 39.04ct
Size: 31.2 x 29.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 721862
Weight: 26.36ct
Size: 20.7 x 17.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 31.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 668868
Weight: 9.10ct
Size: 19.4 x 9.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 196.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 710196
Weight: 1.87ct
Size: 13.4 x 5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 5.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 707732
Weight: 5.52ct
Size: 13.4 x 9.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 39.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 625255
Weight: 2.00ct
Size: 8.4 x 7 mm
Clarity: VS
Content: 1 pc
Price: $ 40.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 708319
Weight: 7.38ct
Size: 16.5 x 11.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 53.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 492375
Weight: 6.66ct
Size: 15.1 x 11.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 25.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 718005
Weight: 1.60ct (total)
Size: 6.2 x 4.2 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 48.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 418233
Weight: 8.47ct
Size: 17.1 x 11.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 16.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 689124
Weight: 1.04ct
Size: 7 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 9.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 380439
Weight: 21.90ct
Size: 29.8 x 13.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 43.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 669551
Weight: 38.44ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 115.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 548256
Weight: 17.66ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 699.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 672219
Weight: 1.93ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 724018
Weight: 8.72ct
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 10.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 611442
Weight: 4.83ct
Size: 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 19.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 465400
Weight: 4.24ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 37.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 398160
Weight: 1.35ct
Size: 16.3 x 3.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 39.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 715790
Weight: 0.80ct
Size: 9.3 x 3.7 mm
Clarity: VVS
Content: 1 pc
Price: $ 50.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 662860
Weight: 1.89ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 36.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 645784
Weight: 9.03ct
Size: 19.6 x 10.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 28.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 449501
Weight: 2.08ct
Size: 16.3 x 3.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 82.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 434095
Weight: 30.70ct
Size: 27.6 x 18.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 40.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 392921
Weight: 7.54ct (total)
Size: 12 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 49.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 567600
Weight: 3.49ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 23.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 454455
Weight: 1.30ct
Size: 12.8 x 3.8 mm
Clarity: VS
Content: 1 pc
Price: $ 54.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 645371
Weight: 19.50ct
Size: 19.6 x 17.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 96.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 697476
Weight: 0.62ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Price: $ 3.72
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 619776
Weight: 17.63ct (total)
Size: 16 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 46.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 649910
Weight: 0.79ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 6.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 716383
Weight: 1.12ct
Size: 13.7 x 3.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 71.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 451250
Weight: 1.29ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 11.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 532531
Weight: 2.04ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS-VS
Price: $ 16.15
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 433345
Weight: 45.11ct
Size: 30.6 x 24.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 71.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 475878
Weight: 5.43ct
Size: 15 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 50.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 533506
Weight: 1.93ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 12.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 718457
Weight: 0.62ct
Size: 5 x 4 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 18.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 522185
Weight: 10.56ct
Size: 16.2 x 12.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 83.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 719770
Weight: 0.64ct
Size: 5.3 x 4.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 11.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 694774
Weight: 2.60ct
Size: 7.9 x 6.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 78.00
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
712
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 -> 8 star ratings

great experience

Posted By T in December, 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

Overall Rating -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Muy serios y muy oportunos para el envo

Posted By Veronica in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I just bought some mystic quartz. Checkout was smooth and pleasant

Posted By Jay in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to find what I wanted

Posted By Villian in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience shopping and finding what I was looking for, the only improvement I could think of would be allowing to filter more than one size at a time.

Posted By Tlicious04 in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Site is easy to navigate and the variety is great and how often new products are added is also great.

Posted By Jhidron in March, 2025
Source: Bizrate

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

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 -> 8 star ratings

great experience

Posted By T in December, 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

Overall Rating -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Muy serios y muy oportunos para el envo

Posted By Veronica in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I just bought some mystic quartz. Checkout was smooth and pleasant

Posted By Jay in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to find what I wanted

Posted By Villian in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience shopping and finding what I was looking for, the only improvement I could think of would be allowing to filter more than one size at a time.

Posted By Tlicious04 in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Site is easy to navigate and the variety is great and how often new products are added is also great.

Posted By Jhidron in March, 2025
Source: Bizrate

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

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