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: 705850
Weight: 0.78ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS
Price: $ 6.55
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 733153
Weight: 2.94ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 26.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 640460
Weight: 0.82ct
Size: 5.6 x 5.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 5.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 492427
Weight: 8.01ct
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 30.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 497058
Weight: 2.50ct
Size: 9.2 x 7.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 44.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 662906
Weight: 1.12ct
Size: 6.5 x 5.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 6.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 683634
Weight: 8.42ct
Size: 17.6 x 10.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 78.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 696895
Weight: 2.34ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 59.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 409415
Weight: 7.88ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 37.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 639561
Weight: 1.45ct
Size: 11.6 x 5.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 12.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 655068
Weight: 8.67ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 20.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 715750
Weight: 0.72ct
Size: 5.8 x 4.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 45.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 464427
Weight: 3.76ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 34.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 679222
Weight: 5.77ct
Size: 18.1 x 11.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 34.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 485288
Weight: 4.06ct (total)
Size: 6.7 x 6.5 mm
Clarity: Translucent
Content: 4 pcs
Price: $ 21.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 453068
Weight: 5.47ct (total)
Size: 7.2 x 5.2 mm
Clarity: VVS-VS
Content: 6 pcs
Price: $ 50.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 714022
Weight: 0.34ct
Size: 4.2 mm
Clarity: SI
Content: 1 pc
Price: $ 10.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 350846
Weight: 1.92ct
Size: 18.7 x 3.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 55.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 710370
Weight: 6.26ct
Size: 14 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 18.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 712157
Weight: 2.40ct
Size: 10 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 6.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 543705
Weight: 2.30ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Price: $ 15.18
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 472381
Weight: 40.92ct
Size: 22.2 x 19.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 567540
Weight: 6.64ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 43.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 705331
Weight: 2.59ct
Size: 9 x 7 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 2.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 427472
Weight: 2.49ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 6 pcs
Price: $ 16.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 600557
Weight: 4.60ct
Size: 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 15.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 662697
Weight: 2.28ct
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 54.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 490275
Weight: 1.60ct
Size: 7.2 x 6.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 121.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 658743
Weight: 13.85ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 20.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 418915
Weight: 6.21ct
Size: 14.9 x 11.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 12.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 733758
Weight: 3.74ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 33.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 474086
Weight: 4.88ct
Size: 11 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 45.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 727297
Weight: 0.49ct
Size: 4.8 x 4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 20.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 708259
Weight: 1.46ct
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 30.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 635666
Weight: 4.80ct
Size: 12.4 x 10.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 40.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 548257
Weight: 14.47ct
Size: 16.5 x 12.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 573.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 625375
Weight: 3.07ct
Size: 13.9 x 8.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 9.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 491187
Weight: 8.00ct
Size: 18.4 x 9.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 23.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 697881
Weight: 0.39ct
Size: 4.7 x 4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 1.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 673728
Weight: 3.74ct
Size: 13 x 9 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 53.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 680712
Weight: 1.03ct
Size: 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 30.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 724966
Weight: 8.23ct
Size: 11 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 9.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 411817
Weight: 4.75ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 219.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 715701
Weight: 2.75ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 26.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 734704
Weight: 3.44ct (total)
Size: 10.1 x 5.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 144.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 699122
Weight: 3.18ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 26.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 533389
Weight: 1.97ct
Size: 9 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 12.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 706398
Weight: 12.25ct
Size: 16.9 x 14.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 25.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 459860
Weight: 4.82ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 44.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 409945
Weight: 5.36ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 35.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 690270
Weight: 16.63ct
Size: 18.4 x 15.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 37.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 711108
Weight: 1.85ct (total)
Size: 6 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 36.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 711962
Weight: 1.78ct
Size: 7.9 x 6.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 42.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 459888
Weight: 4.21ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 38.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 664882
Weight: 1.23ct
Size: 7.9 x 5.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 386743
Weight: 2.99ct
Size: 14.7 x 9.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 26.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 417159
Weight: 7.73ct
Size: 16 x 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 15.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 492926
Weight: 4.38ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 31.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 383507
Weight: 1.05ct
Size: 11.2 x 3.6 mm
Clarity: VS
Content: 1 pc
Price: $ 26.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 492631
Weight: 8.36ct (total)
Size: 14.1 x 9.6 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 60.47
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
55
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

Helpselect accomplished all personal growth goals

Posted By Mike in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was my second time so I understand what it is to do

Posted By Ibie 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 -> 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 -> 10 star ratings

Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 2025
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

I've made several purchases through GemSelect in the past, although not within the last six months. Their gems are always beautiful and I have never had an issue with their prices or their stones. Even when I'm not buying, I love scrolling through their website, which is very user friendly. I especially appreciate being able to change the listing order to your own liking, such as most to least expensive, largest to smallest, etc. As with most online orders, however, I think the shipping charges are not commensurate with the actual weight of the items shipped.

Posted By DrLHS in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

GemSelect website simple to use. I recommend it to non-trade clients looking for gems.

Posted By GemJocky in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Very professional site

Posted By JR in January, 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

Helpselect accomplished all personal growth goals

Posted By Mike in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was my second time so I understand what it is to do

Posted By Ibie 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 -> 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 -> 10 star ratings

Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 2025
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

I've made several purchases through GemSelect in the past, although not within the last six months. Their gems are always beautiful and I have never had an issue with their prices or their stones. Even when I'm not buying, I love scrolling through their website, which is very user friendly. I especially appreciate being able to change the listing order to your own liking, such as most to least expensive, largest to smallest, etc. As with most online orders, however, I think the shipping charges are not commensurate with the actual weight of the items shipped.

Posted By DrLHS in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

GemSelect website simple to use. I recommend it to non-trade clients looking for gems.

Posted By GemJocky in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Very professional site

Posted By JR in January, 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