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: 493116
Weight: 6.40ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 46.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 346641
Weight: 3.81ct
Size: 15.7 x 7.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 2,816.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 702033
Weight: 7.47ct
Size: 16 x 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 44.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 687854
Weight: 0.27ct
Size: 6 x 3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 12.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 445130
Weight: 11.27ct
Size: 14 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 373.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 678037
Weight: 5.88ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 14.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 541523
Weight: 1.32ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 10.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 718552
Weight: 6.70ct
Size: 12 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 25.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 413632
Weight: 3.40ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 22.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 719491
Weight: 0.72ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 6.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 656100
Weight: 11.47ct
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 17.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 472607
Weight: 44.32ct
Size: 34.4 x 18.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 92.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 489368
Weight: 4.75ct (total)
Size: 4.8 mm
Clarity: VVS-VS
Content: 10 pcs
Price: $ 95.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 555105
Weight: 1.00ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 31.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 565678
Weight: 1.09ct
Size: 6.5 x 4.5 mm
Clarity: VS
Content: 1 pc
Price: $ 24.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 589312
Weight: 2.90ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 87.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 669626
Weight: 27.34ct
Size: 22.5 x 15.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 82.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 691796
Weight: 0.64ct
Size: 5.5 x 4.2 mm
Clarity: VS
Content: 1 pc
Price: $ 53.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 528883
Weight: 10.50ct
Size: 14 x 14 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 15.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 539705
Weight: 2.04ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 39.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 728378
Weight: 27.00ct
Size: 29.1 x 21 mm
Clarity: Opaque
Content: 1 pc
Price: $ 55.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 716080
Weight: 1.04ct
Size: 6.5 x 5 mm
Clarity: VVS
Content: 1 pc
Price: $ 66.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 471871
Weight: 6.41ct
Size: 14 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 1,269.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 422633
Weight: 6.76ct
Size: 16.3 x 12.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 26.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 661896
Weight: 1.99ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 16.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 716098
Weight: 3.17ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 30.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 372686
Weight: 5.05ct (total)
Size: 9.1 x 4.5 mm
Clarity: VS
Content: 5 pcs
Price: $ 40.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 481852
Weight: 93.42ct
Size: 46.5 x 35.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 93.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 609397
Weight: 8.88ct
Size: 18.8 x 10.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 82.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 721094
Weight: 1.10ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 9.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 727205
Weight: 0.64ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 11.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 639447
Weight: 1.35ct
Size: 7.2 x 6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 8.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 720311
Weight: 1.39ct
Size: 7 x 5.9 mm
Clarity: VVS
Content: 1 pc
Price: $ 133.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 599823
Weight: 2.47ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 22.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 695896
Weight: 8.33ct
Size: 13 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 249.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 713951
Weight: 1.83ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 12.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 384555
Weight: 13.47ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 53.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 369628
Weight: 1.90ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 67.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 724986
Weight: 1.10ct
Size: 8.8 x 4.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 46.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 552263
Weight: 3.09ct
Size: 11 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 28.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 370460
Weight: 25.62ct (total)
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 50.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 688230
Weight: 0.25ct
Size: 4.5 x 3.4 mm
Clarity: VS
Content: 1 pc
Price: $ 16.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 431449
Weight: 3.91ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 92.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 489235
Weight: 4.65ct
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 47.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 708205
Weight: 22.46ct
Size: 25.2 x 16.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 80.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 389712
Weight: 3.47ct (total)
Size: 6.9 x 6.3 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 22.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 732793
Weight: 1.28ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 49.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 647743
Weight: 1.18ct
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 31.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 699081
Weight: 0.92ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 7.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 471054
Weight: 3.07ct
Size: 9 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 28.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 262428
Weight: 0.74ct
Size: 7 x 3.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 92.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 719470
Weight: 0.58ct
Size: 5 x 4 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 10.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 680742
Weight: 1.05ct
Size: 7 x 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 31.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 705609
Weight: 0.34ct
Size: 4.2 mm
Clarity: SI
Price: $ 13.87
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 692138
Weight: 0.23ct
Size: 3.7 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 13.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 394329
Weight: 5.39ct (total)
Size: 8.7 x 8.6 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 32.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 617917
Weight: 2.10ct
Size: 8.5 x 7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 44.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 453814
Weight: 4.24ct
Size: 12.1 x 9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 39.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 511696
Weight: 0.95ct
Size: 9 x 4.7 mm
Clarity: VS
Price: $ 43.90
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 606007
Weight: 4.31ct
Size: 14 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 56.89
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
555
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

Everything went well, the payment options are easily declined but, but once sorted out, everything is smooth. I have bought from GemSelect before and am consistently satisfied with them.

Posted By Gabe in August, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

The website was nice and I bought some gems

Posted By Jay in December, 2024
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

I searched for the size, dimensions and quality of the stones I was looking for and then compared and ordered.

Posted By Tim in March, 2025
Source: Bizrate

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 -> 9 star ratings

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

Posted By PI SC in May, 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

Easy and convenient

Posted By Butch in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was very good and concise.

Posted By Whydothey in August, 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

Everything went well, the payment options are easily declined but, but once sorted out, everything is smooth. I have bought from GemSelect before and am consistently satisfied with them.

Posted By Gabe in August, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

The website was nice and I bought some gems

Posted By Jay in December, 2024
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

I searched for the size, dimensions and quality of the stones I was looking for and then compared and ordered.

Posted By Tim in March, 2025
Source: Bizrate

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 -> 9 star ratings

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

Posted By PI SC in May, 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

Easy and convenient

Posted By Butch in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was very good and concise.

Posted By Whydothey in August, 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