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: 485160
Weight: 4.47ct
Size: 12 x 11.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 23.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 491673
Weight: 7.88ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: Opaque
Content: 4 pcs
Price: $ 23.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 348541
Weight: 1.88ct
Size: 18.6 x 3.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 62.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 724422
Weight: 79.45ct
Size: 33.7 x 22.6 mm
Clarity: VVS
Content: 1 pc
Price: $ 716.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 705191
Weight: 22.11ct
Size: 20 x 15 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 58.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 647358
Weight: 1.49ct
Size: 9 x 7 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 53.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 464439
Weight: 2.55ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 23.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 555563
Weight: 17.40ct
Size: 18.5 x 14.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 17.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 723010
Weight: 0.54ct
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 16.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 695828
Weight: 1.89ct
Size: 8 x 6 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 4.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 454008
Weight: 1.10ct
Size: 11 x 3.6 mm
Clarity: VVS
Content: 1 pc
Price: $ 46.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 552244
Weight: 3.09ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 28.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 662659
Weight: 11.37ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 8.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 408318
Weight: 9.19ct
Size: 13 x 13 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 21.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 387600
Weight: 4.58ct (total)
Size: 4.6 x 4.5 mm
Clarity: VVS-VS
Content: 10 pcs
Price: $ 30.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 697178
Weight: 1.99ct
Size: 12 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 60.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 658350
Weight: 4.26ct
Size: 13 x 9 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 15.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 735793
Weight: 47.69ct
Size: 37.6 x 27.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 39.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 518607
Weight: 2.12ct
Size: 10 x 6.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 11.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 697228
Weight: 23.35ct
Size: 34.7 x 9.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 2.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 499180
Weight: 1.81ct
Size: 10 x 5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 358.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 500224
Weight: 1.94ct
Size: 11.8 x 6.1 mm
Clarity: VS
Content: 1 pc
Price: $ 17.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 321166
Weight: 2.72ct
Size: 9.6 x 7.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 7.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 656561
Weight: 0.76ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 12.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 716073
Weight: 0.38ct
Size: 4.9 x 4.4 mm
Clarity: VVS
Content: 1 pc
Price: $ 24.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 445833
Weight: 2.55ct
Size: 8.5 x 6.6 mm
Clarity: VS
Content: 1 pc
Price: $ 121.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 418258
Weight: 5.32ct
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 28.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 584101
Weight: 11.26ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 33.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 537749
Weight: 1.48ct
Size: 10 x 4.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 134.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 519526
Weight: 2.06ct
Size: 7.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 54.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 727839
Weight: 0.03ct
Size: 2 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 12.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 341703
Weight: 11.93ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 23.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 737178
Weight: 48.76ct
Size: 44.4 x 11.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 4.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 517341
Weight: 1.50ct
Size: 10 x 5.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 138.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 453705
Weight: 1.80ct
Size: 8.3 x 8.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 16.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 640073
Weight: 2.67ct
Size: 10 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 16.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 485198
Weight: 3.40ct (total)
Size: 8.6 x 8.5 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 16.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 479005
Weight: 2.25ct (total)
Size: 10.1 x 5.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 23.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 713649
Weight: 19.70ct
Size: 20 x 15 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 165.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 687785
Weight: 10.79ct (total)
Size: 15 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 31.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 532561
Weight: 3.64ct
Size: 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 26.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 634615
Weight: 14.40ct
Size: 18.4 x 16.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 120.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 687827
Weight: 6.43ct
Size: 16.5 x 14.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 18.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 713456
Weight: 1.60ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 26.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 552530
Weight: 0.90ct
Size: 7 x 7 mm (calibrated)
Clarity: VS
Price: $ 8.32
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 699064
Weight: 3.23ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 27.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 458242
Weight: 1.30ct (total)
Size: 4.3 x 3.6 mm
Clarity: VS
Content: 4 pcs
Price: $ 171.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 642106
Weight: 1.11ct
Size: 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 51.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 711467
Weight: 27.85ct
Size: 24.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 74.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 710361
Weight: 1.31ct
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 23.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 542099
Weight: 2.18ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 20.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 712329
Weight: 12.43ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 33.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 648673
Weight: 1.65ct
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 9.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 706009
Weight: 1.63ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 13.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 689925
Weight: 1.11ct
Size: 12.1 x 4.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 10.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 502937
Weight: 1.92ct
Size: 17 x 4.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 63.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 492787
Weight: 5.33ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 38.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 648015
Weight: 2.35ct
Size: 11.5 x 7.6 mm
Clarity: VVS
Content: 1 pc
Price: $ 19.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 397556
Weight: 0.93ct
Size: 7.7 x 5.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 58.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 544614
Weight: 0.83ct
Size: 7.1 x 4.4 mm
Clarity: VS
Content: 1 pc
Price: $ 37.14
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
108
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

Great site always looking for great deals and find them on this site

Posted By IRO5812 in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D in December, 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

I love browsing the site and everything is easy to find. There is just so much I get lost for hours. Sometimes I wish there were videos of some gems, but other than that I love shopping with GemSelect and I have referred the site to many people many times. I work in the jewelry industry myself and I love to show off what Ive had made with my gems from GemSelect! Thank you

Posted By Antennaesglow in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic

Posted By Steve m. in February, 2025
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

very good

Posted By Son Gift in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick 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

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

Great site always looking for great deals and find them on this site

Posted By IRO5812 in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D in December, 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

I love browsing the site and everything is easy to find. There is just so much I get lost for hours. Sometimes I wish there were videos of some gems, but other than that I love shopping with GemSelect and I have referred the site to many people many times. I work in the jewelry industry myself and I love to show off what Ive had made with my gems from GemSelect! Thank you

Posted By Antennaesglow in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic

Posted By Steve m. in February, 2025
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

very good

Posted By Son Gift in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick 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

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