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: 692450
Weight: 15.16ct
Size: 16 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 127.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 455261
Weight: 2.10ct
Size: 9.8 x 5.2 mm
Clarity: VS
Content: 1 pc
Price: $ 19.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 450148
Weight: 2.44ct (total)
Size: 4.8 x 4.8 mm
Clarity: VS
Content: 4 pcs
Price: $ 22.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 733197
Weight: 3.08ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 27.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 725882
Weight: 0.94ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 9.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 398130
Weight: 1.59ct
Size: 20.6 x 3.3 mm
Clarity: VS
Content: 1 pc
Price: $ 46.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 533402
Weight: 1.44ct
Size: 8 x 8 mm (calibrated)
Clarity: VS
Price: $ 11.46
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 693710
Weight: 17.28ct
Size: 28.7 x 8.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 6.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 394965
Weight: 1.13ct
Size: 7.4 x 5.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 55.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 698507
Weight: 1.50ct
Size: 6.9 x 5.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 9.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 498947
Weight: 2.11ct
Size: 10 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 19.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 677975
Weight: 0.31ct (total)
Size: 2.7 x 2.5 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 186.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 596473
Weight: 21.17ct
Size: 22.8 x 16.8 mm
Clarity: VS
Content: 1 pc
Price: $ 186.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 675955
Weight: 5.56ct
Size: 13.1 x 12 mm
Clarity: Transparent
Content: 1 pc
Price: $ 33.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 656756
Weight: 0.67ct
Size: 6.6 x 4.8 mm
Clarity: VS
Content: 1 pc
Price: $ 11.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 450947
Weight: 2.64ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 24.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 656152
Weight: 1.24ct
Size: 8 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 29.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 724444
Weight: 64.82ct
Size: 35.2 x 23 mm
Clarity: IF
Content: 1 pc
Price: $ 584.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 573986
Weight: 1.82ct
Size: 8 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 48.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 656653
Weight: 1.51ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 25.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 395661
Weight: 1.09ct
Size: 7.1 x 5.4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 62.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 519120
Weight: 28.79ct
Size: 25.7 x 16.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 33.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 478547
Weight: 0.84ct
Size: 6.5 x 5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 35.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 595147
Weight: 15.46ct
Size: 16.2 x 15.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 61.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 682140
Weight: 0.63ct
Size: 6.8 x 4.7 mm
Clarity: VS
Content: 1 pc
Price: $ 11.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 640066
Weight: 5.58ct
Size: 14 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 16.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 458239
Weight: 1.57ct (total)
Size: 4.5 x 3.7 mm
Clarity: VS
Content: 4 pcs
Price: $ 207.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 396739
Weight: 14.29ct
Size: 24.3 x 14.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 455417
Weight: 34.47ct (total)
Size: 23 x 13.3 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 45.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 577098
Weight: 8.50ct
Size: 16.3 x 10.6 mm
Clarity: VS
Content: 1 pc
Price: $ 78.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 523997
Weight: 12.37ct
Size: 18.9 x 13.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 97.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 731133
Weight: 19.86ct
Size: 24.6 x 16 mm
Clarity: Opaque
Content: 1 pc
Price: $ 24.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 668012
Weight: 10.04ct
Size: 15.6 x 12.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 60.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 445782
Weight: 4.18ct
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 11.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 607764
Weight: 1.42ct
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 26.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 562141
Weight: 4.17ct
Size: 11.1 x 10.4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 220.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 672660
Weight: 8.93ct
Size: 14.1 x 10.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 53.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 410596
Weight: 2.87ct
Size: 8.7 x 6.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 26.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 736679
Weight: 10.08ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 14.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 721827
Weight: 0.58ct
Size: 8 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 10.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 602894
Weight: 1.53ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 14.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 387894
Weight: 3.16ct (total)
Size: 4.6 x 4.6 mm
Clarity: VVS-VS
Content: 6 pcs
Price: $ 20.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 698546
Weight: 1.39ct
Size: 6.8 x 5.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 8.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 502900
Weight: 1.59ct
Size: 10 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 12.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 492975
Weight: 4.52ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 32.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 513991
Weight: 2.19ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 17.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 645961
Weight: 22.43ct
Size: 26.9 x 16.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 12.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 363515
Weight: 29.84ct
Size: 30.5 x 18.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 43.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 718514
Weight: 12.00ct
Size: 26 x 16.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 72.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 519110
Weight: 33.96ct
Size: 27.6 x 18.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 39.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 509125
Weight: 26.60ct
Size: 20.9 x 16.6 mm
Clarity: VVS
Content: 1 pc
Price: $ 245.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 693950
Weight: 0.85ct
Size: 10.6 x 3.7 mm
Clarity: VS
Content: 1 pc
Price: $ 51.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 647610
Weight: 1.08ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 476043
Weight: 3.20ct
Size: 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 22.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 582888
Weight: 19.73ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 142.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 594621
Weight: 1.65ct
Size: 8.1 x 6.6 mm
Clarity: VS
Content: 1 pc
Price: $ 39.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 684528
Weight: 0.04ct
Size: 2.1 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 14.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 714404
Weight: 0.79ct
Size: 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 23.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 391653
Weight: 29.41ct (total)
Size: 18 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 83.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 682564
Weight: 1.06ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 19.08
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
249
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 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

Its been a long time since Ive made any purchases Im satisfied with the quality.

Posted By Hard Case in December, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

I love the gems!

Posted By MM in April, 2025
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

It was very good and concise.

Posted By Whydothey in August, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

went well

Posted By Doug in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

excellent deals-excellent service-fair prices

Posted By JD in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, trusted quality. What I have purchased has always been as discribed.

Posted By Sterling in November, 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 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

Its been a long time since Ive made any purchases Im satisfied with the quality.

Posted By Hard Case in December, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

I love the gems!

Posted By MM in April, 2025
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

It was very good and concise.

Posted By Whydothey in August, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

went well

Posted By Doug in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

excellent deals-excellent service-fair prices

Posted By JD in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, trusted quality. What I have purchased has always been as discribed.

Posted By Sterling in November, 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