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: 499413
Weight: 1.95ct (total)
Size: 7.1 x 5.3 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 7.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 409216
Weight: 11.09ct
Size: 16.7 x 13 mm
Clarity: VS
Content: 1 pc
Price: $ 377.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 586138
Weight: 14.28ct
Size: 19.1 x 22.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 94.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 685920
Weight: 36.98ct
Size: 31 x 25.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 523722
Weight: 33.71ct
Size: 32.6 x 22.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 222.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 695440
Weight: 12.31ct
Size: 13 x 13 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 369.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 602229
Weight: 24.26ct (total)
Size: 25.6 x 16.1 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 107.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 484392
Weight: 5.89ct
Size: 13.7 x 10.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 38.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 655374
Weight: 12.63ct
Size: 25.5 x 14.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 23.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 694477
Weight: 20.59ct
Size: 18 x 18 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 144.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 623567
Weight: 6.58ct
Size: 14 x 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 32.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 546196
Weight: 1.13ct
Size: 6.5 x 5.5 mm
Clarity: VS
Content: 1 pc
Price: $ 80.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 645982
Weight: 19.53ct
Size: 23.8 x 17.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 60.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 415866
Weight: 0.75ct
Size: 6.1 x 4.7 mm
Clarity: SI
Content: 1 pc
Price: $ 495.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 691363
Weight: 2.27ct
Size: 7.5 mm (calibrated)
Clarity: SI-I1
Content: 1 pc
Price: $ 136.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 571873
Weight: 1.74ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 137.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 565126
Weight: 0.15ct (total)
Size: 2.7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 328.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 597452
Weight: 2.33ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 153.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 521012
Weight: 112.60ct
Size: 35.6 x 25.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 297.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 548411
Weight: 1.62ct
Size: 7.5 x 5.8 mm
Clarity: SI
Content: 1 pc
Price: $ 27.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 526527
Weight: 2.98ct
Size: 10 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 150.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 588862
Weight: 83.59ct
Size: 55.2 x 35.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 283.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 470658
Weight: 13.98ct
Size: 16.5 x 13.7 mm
Clarity: SI
Content: 1 pc
Price: $ 9,226.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 568868
Weight: 14.98ct
Size: 17.5 x 14.6 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 810.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 482110
Weight: 12.04ct
Size: 19.3 x 9.5 mm
Clarity: VS
Content: 1 pc
Price: $ 274.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 355079
Weight: 34.50ct
Size: 34 x 18.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 91.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 381632
Weight: 1.89ct
Size: 9.5 x 6.9 mm
Clarity: VS
Content: 1 pc
Price: $ 187.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 447709
Weight: 31.05ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 122.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 690464
Weight: 5.23ct
Size: 12 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 122.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 382310
Weight: 3.11ct (total)
Size: 3.3 mm
Clarity: VS
Content: 20 pcs
Price: $ 164.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 333540
Weight: 5.25ct
Size: 12 x 10 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 630.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 402811
Weight: 1.26ct
Size: 7.4 x 5.5 mm
Clarity: VS
Content: 1 pc
Price: $ 170.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 424330
Weight: 5.48ct
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 171.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 643669
Weight: 6.35ct
Size: 25.3 x 9.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 53.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 448580
Weight: 1.21ct
Size: 7.4 x 5.4 mm
Clarity: VS
Content: 1 pc
Price: $ 641.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 416858
Weight: 11.49ct
Size: 14 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 50.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 415688
Weight: 1.17ct
Size: 8.5 x 5.3 mm
Clarity: VS
Content: 1 pc
Price: $ 1,034.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 284163
Weight: 0.87ct (total)
Size: 4.8 x 3.7 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 130.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 539689
Weight: 1.68ct
Size: 6.7 x 6.7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 32.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 420965
Weight: 7.29ct
Size: 14.1 x 10.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 24.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 595006
Weight: 11.29ct (total)
Size: 15 x 9.1 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 149.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 476877
Weight: 20.93ct
Size: 16 x 16 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 82.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 407297
Weight: 9.00ct
Size: 16.4 x 11.1 mm
Clarity: VS
Content: 1 pc
Price: $ 492.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 654798
Weight: 7.18ct
Size: 11.9 x 10.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 94.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 447456
Weight: 77.78ct (total)
Size: 14 mm (calibrated)
Clarity: Opaque
Content: 4 pcs
Price: $ 154.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 513650
Weight: 127.45ct
Size: 28.6 x 26.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 2,102.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 471437
Weight: 143.91ct
Size: 43.7 x 25.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 159.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 696564
Weight: 48.09ct
Size: 33.7 x 24.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 72.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 634013
Weight: 9.31ct
Size: 13.9 x 11.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 23.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 478308
Weight: 8.34ct
Size: 18 x 13 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 76.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 382653
Weight: 1.61ct
Size: 9.3 x 6.3 mm
Clarity: VS
Content: 1 pc
Price: $ 159.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 399657
Weight: 6.64ct
Size: 11 x 11 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 419.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 394031
Weight: 42.59ct
Size: 39.2 x 19.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 56.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 513160
Weight: avg. 1.00 ct / each
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Price: $ 9.06
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 470619
Weight: 44.66ct
Size: 34.8 x 23.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 43.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 631996
Weight: 16.82ct
Size: 19 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 76.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 366561
Weight: 1.13ct
Size: 8.2 x 5.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 158.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 397518
Weight: 14.67ct
Size: 15 x 15 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 96.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 541686
Weight: 10.24ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 146.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 601429
Weight: 11.59ct
Size: 15 x 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 56.30
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
12
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 -> 10 star ratings

Great website, no hassle, easy check out and found everything I needed quickly

Posted By Chris in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Helpselect accomplished all personal growth goals

Posted By Mike in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

First time so this is an experiment! Shopping is so fun on this site, though!

Posted By Gem Delight in March, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Love the ease of access. Easy to find what you are looking for, and fair pricing.

Posted By NickBehnke in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and convenient

Posted By Butch in September, 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

Loved everything. High quality, quick shipping, and authentication included.

Posted By Chris in March, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I am very pleased with the ways you can filter your searches on this site, finding exactly what I want with little knowledge of what I am looking for is surprisingly easy!

Posted By Leo in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I enjoy doing buisness with GemSelect. It is always a pleasure and you get what you ordered!

Posted By Ballpark in December, 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

Great website, no hassle, easy check out and found everything I needed quickly

Posted By Chris in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Helpselect accomplished all personal growth goals

Posted By Mike in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

First time so this is an experiment! Shopping is so fun on this site, though!

Posted By Gem Delight in March, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Love the ease of access. Easy to find what you are looking for, and fair pricing.

Posted By NickBehnke in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and convenient

Posted By Butch in September, 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

Loved everything. High quality, quick shipping, and authentication included.

Posted By Chris in March, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I am very pleased with the ways you can filter your searches on this site, finding exactly what I want with little knowledge of what I am looking for is surprisingly easy!

Posted By Leo in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I enjoy doing buisness with GemSelect. It is always a pleasure and you get what you ordered!

Posted By Ballpark in December, 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