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: 588915
Weight: 3.49ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 105.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 552258
Weight: 1.73ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 15.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 408071
Weight: 8.22ct
Size: 13 x 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 19.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 594835
Weight: 16.84ct
Size: 21 x 13.8 mm
Clarity: VVS
Content: 1 pc
Price: $ 133.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 594185
Weight: 0.90ct
Size: 5 x 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 21.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 543734
Weight: 1.03ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 9.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 309439
Weight: 0.72ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 40.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 461786
Weight: 1.92ct
Size: 10 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 89.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 439099
Weight: 3.59ct
Size: 8.6 x 8.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 222.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 718853
Weight: 0.70ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 12.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 397291
Weight: 6.04ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 39.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 709140
Weight: 1.85ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 38.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 598322
Weight: 1.34ct
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 26.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 687178
Weight: 2.20ct
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 2.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 711143
Weight: 19.78ct
Size: 18 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 166.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 705608
Weight: 0.33ct
Size: 4.6 x 3.7 mm
Clarity: SI
Content: 1 pc
Price: $ 13.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 325978
Weight: 2.60ct
Size: 9.2 x 7.5 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 9.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 728373
Weight: 29.48ct
Size: 35.5 x 18.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 60.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 471830
Weight: 6.06ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 24.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 372541
Weight: 25.90ct (total)
Size: 17.6 x 8.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 245.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 504931
Weight: 7.66ct
Size: 13 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 50.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 551280
Weight: 3.00ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 27.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 411653
Weight: 1.24ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 57.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 603866
Weight: 1.54ct
Size: 7 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 14.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 711827
Weight: 3.95ct
Size: 15.1 x 10.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 105.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 584109
Weight: 11.62ct
Size: 39.4 x 8.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 33.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 384349
Weight: 1.25ct
Size: 14.8 x 3.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 31.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 398830
Weight: 1.96ct
Size: 8 x 8 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 51.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 459544
Weight: 4.17ct
Size: 11 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 8.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 554940
Weight: 21.11ct
Size: 21.3 x 11 mm
Clarity: Opaque
Content: 1 pc
Price: $ 25.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 439264
Weight: 2.54ct
Size: 8 x 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 157.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 655363
Weight: 5.02ct
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 66.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 445131
Weight: 10.95ct
Size: 14 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 362.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 501590
Weight: 2.16ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 17.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 655566
Weight: 2.02ct
Size: 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 48.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 669527
Weight: 19.06ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 57.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 710384
Weight: 3.11ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 26.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 590925
Weight: 1.03ct
Size: 6 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 20.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 663063
Weight: 4.81ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 11.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 465508
Weight: 5.28ct
Size: 12 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 42.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 484697
Weight: 2.10ct
Size: 7.5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 13.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 650616
Weight: 7.15ct
Size: 17 x 10.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 30.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 700367
Weight: 0.68ct
Size: 5.4 x 5.1 mm
Clarity: VS
Content: 1 pc
Price: $ 29.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 669202
Weight: 13.80ct
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 16.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 737869
Weight: 0.59ct
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 29.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 283442
Weight: 1.05ct
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 135.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 699685
Weight: 20.07ct
Size: 35.8 x 14.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 16.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 710155
Weight: 1.41ct
Size: 6.9 x 5.2 mm
Clarity: VS
Content: 1 pc
Price: $ 25.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 730231
Weight: 2.98ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 26.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 636609
Weight: 0.83ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 43.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 389952
Weight: 19.68ct
Size: 24.7 x 16.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 47.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 725616
Weight: 0.88ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 8.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 465504
Weight: 4.12ct
Size: 15 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 36.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 718153
Weight: 0.60ct
Size: 5.3 x 4.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 18.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 392766
Weight: 6.34ct
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 41.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 334252
Weight: 21.24ct
Size: 18 x 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 34.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 475852
Weight: 7.35ct
Size: 15.1 x 8.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 38.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 733050
Weight: 0.51ct
Size: 5.9 x 3.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 21.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 708320
Weight: 4.16ct
Size: 13.4 x 10.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 29.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 662689
Weight: 1.89ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 45.36
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
521
Choose Page
1 - 778

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 -> 9 star ratings

The checkout said the my ccv was invalid. i had to use another card.

Posted By Ron in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, package and info of your gems.

Posted By Diana in April, 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

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 -> 9 star ratings

Site is easy to navigate - details on cut, polish, and finish work and techniques were helpful. 3d view or wireframe diagram of stones would be nice.

Posted By Tb in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

very good

Posted By Son Gift in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

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 star ratings

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

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 -> 9 star ratings

The checkout said the my ccv was invalid. i had to use another card.

Posted By Ron in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, package and info of your gems.

Posted By Diana in April, 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

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 -> 9 star ratings

Site is easy to navigate - details on cut, polish, and finish work and techniques were helpful. 3d view or wireframe diagram of stones would be nice.

Posted By Tb in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

very good

Posted By Son Gift in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

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 star ratings

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

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