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: 692723
Weight: 22.42ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 188.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 681981
Weight: 12.70ct
Size: 16 x 13.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 76.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 707746
Weight: 7.65ct
Size: 14 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 55.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 724921
Weight: 0.75ct
Size: 9.7 x 3 mm
Clarity: VVS
Content: 1 pc
Price: $ 31.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 698488
Weight: 3.23ct
Size: 11 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 27.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 707934
Weight: 3.02ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 5.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 371772
Weight: 9.11ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 48.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 449046
Weight: 17.46ct
Size: 23.5 x 17.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 57.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 529083
Weight: 1.83ct
Size: 7.9 x 5.2 mm
Clarity: VS
Content: 1 pc
Price: $ 159.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 456554
Weight: 2.31ct
Size: 12 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 21.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 396982
Weight: 9.16ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 12.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 723826
Weight: 1.08ct
Size: 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 10.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 673901
Weight: 25.56ct
Size: 25.6 x 16.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 460.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 558463
Weight: 3.56ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 26.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 677110
Weight: 23.79ct
Size: 26.1 x 16.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 22.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 602719
Weight: 2.90ct
Size: 8 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 79.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 656113
Weight: 1.55ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 37.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 664938
Weight: 0.92ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 9.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 672072
Weight: 1.40ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 33.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 443058
Weight: 3.60ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 9.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 723577
Weight: 1.70ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 16.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 722701
Weight: 18.25ct
Size: 22.4 x 14.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 153.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 658294
Weight: 8.44ct
Size: 20.9 x 14.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 30.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 661865
Weight: 1.36ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 32.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 658352
Weight: 3.86ct
Size: 16.7 x 8.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 693430
Weight: 5.57ct
Size: 13 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 184.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 688848
Weight: 1.46ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 14.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 698499
Weight: 1.76ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 10.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 726848
Weight: 0.85ct
Size: 7.1 x 3.9 mm
Clarity: VS
Content: 1 pc
Price: $ 51.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 717338
Weight: 25.23ct
Size: 20 x 15 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 908.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 387566
Weight: 4.18ct
Size: 11 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 165.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 712543
Weight: 2.51ct
Size: 12 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 6.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 696846
Weight: 28.06ct
Size: 22.9 x 16.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 514090
Weight: 3.49ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 25.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 472935
Weight: 62.15ct (total)
Size: 37.3 x 37.1 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 820.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 684212
Weight: 0.67ct
Size: 5.2 x 4.3 mm
Clarity: VS
Content: 1 pc
Price: $ 28.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 687669
Weight: 3.30ct
Size: 10.5 x 8.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 3.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 699752
Weight: 0.42ct
Size: 4.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 25.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 700068
Weight: 37.20ct
Size: 37.3 x 24 mm
Clarity: Opaque
Content: 1 pc
Price: $ 31.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 659996
Weight: 1.72ct
Size: 7.9 x 6.5 mm
Clarity: VS
Content: 1 pc
Price: $ 41.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 650680
Weight: 27.55ct
Size: 24.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 77.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 720840
Weight: 0.49ct
Size: 8 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 4.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 333653
Weight: 16.64ct (total)
Size: 15.3 x 10.7 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 241.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 724761
Weight: 2.14ct (total)
Size: 10 x 5 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 64.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 545065
Weight: 0.79ct (total)
Size: 5.3 x 3.4 mm
Clarity: SI-I1
Content: 2 pcs
Price: $ 20.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 460029
Weight: 4.65ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 42.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 693368
Weight: 44.52ct
Size: 36 x 26 mm
Clarity: Opaque
Content: 1 pc
Price: $ 30.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 682563
Weight: 0.54ct
Size: 5.7 x 3.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 9.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 539853
Weight: 1.32ct
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 26.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 390273
Weight: 1.06ct
Size: 7.5 x 4.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 68.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 534133
Weight: 1.98ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 12.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 726009
Weight: 0.82ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 32.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 451302
Weight: 1.46ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 13.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 725605
Weight: 0.40ct
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 3.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 722814
Weight: 0.55ct
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 16.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 684045
Weight: 0.91ct (total)
Size: 5 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 38.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 400592
Weight: 1.01ct
Size: 6.4 x 5.4 mm
Clarity: VS
Content: 1 pc
Price: $ 136.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 715452
Weight: 0.60ct
Size: 5.2 x 4.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 38.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 699773
Weight: 0.24ct
Size: 3.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 14.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 650566
Weight: 22.76ct
Size: 28 x 17.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.66
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
64
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

Im not a jeweler, I buy for my personal use. My dad was a jewelry maker and I love gemstones.

Posted By Andie in September, 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

Easy and convenient

Posted By Butch in September, 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

I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 2025
Source: Bizrate

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 -> 10 star ratings

This is a wonderful website

Posted By Bryan Diaz in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 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

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

Im not a jeweler, I buy for my personal use. My dad was a jewelry maker and I love gemstones.

Posted By Andie in September, 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

Easy and convenient

Posted By Butch in September, 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

I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 2025
Source: Bizrate

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 -> 10 star ratings

This is a wonderful website

Posted By Bryan Diaz in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 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

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