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: 693478
Weight: 9.26ct
Size: 15.3 x 11.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 33.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 691766
Weight: 2.89ct
Size: 13 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 156.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 384140
Weight: 12.78ct
Size: 18.1 x 14.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 33.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 705803
Weight: 0.66ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Price: $ 5.54
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 489422
Weight: 3.14ct (total)
Size: 5 mm (calibrated)
Clarity: VVS-VS
Content: 6 pcs
Price: $ 62.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 620779
Weight: 0.78ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Price: $ 7.21
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 736005
Weight: 37.32ct
Size: 38.8 x 23 mm
Clarity: Translucent
Content: 1 pc
Price: $ 30.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 463874
Weight: 12.64ct
Size: 17 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 719429
Weight: 0.68ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 5.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 448495
Weight: 1.40ct
Size: 6.7 x 5.2 mm
Clarity: VS
Content: 1 pc
Price: $ 890.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 472752
Weight: 7.86ct
Size: 21.6 x 9.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 108.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 375916
Weight: 4.82ct (total)
Size: 8 x 7 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 33.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 716386
Weight: 1.08ct
Size: 12 x 4.7 mm
Clarity: VS
Content: 1 pc
Price: $ 68.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 473055
Weight: 8.02ct
Size: 13.9 x 11.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 71.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 672121
Weight: 0.67ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 16.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 622740
Weight: 0.37ct
Size: 4.6 x 4 mm
Clarity: VS
Content: 1 pc
Price: $ 24.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 680741
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: 560655
Weight: 1.91ct
Size: 8.2 x 6.8 mm
Clarity: SI
Content: 1 pc
Price: $ 42.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 431112
Weight: 1.52ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 16.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 707747
Weight: 5.61ct
Size: 12.8 x 10.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 40.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 360542
Weight: 7.30ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 38.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 698910
Weight: 0.91ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 693885
Weight: 5.92ct
Size: 13.1 x 8 mm
Clarity: VS
Content: 1 pc
Price: $ 196.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 727195
Weight: 0.66ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 11.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 642154
Weight: 3.99ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 28.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 699608
Weight: 0.47ct
Size: 4.7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 28.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 536859
Weight: 0.97ct
Size: 5.7 x 4.2 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 39.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 474574
Weight: 1.81ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 16.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 673246
Weight: 5.25ct (total)
Size: 15.1 x 8.6 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 14.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 600292
Weight: 88.57ct
Size: 37.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 66.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 726917
Weight: 0.74ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 22.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 566298
Weight: 4.73ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 31.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 435859
Weight: 8.61ct
Size: 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 28.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 725587
Weight: 0.84ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 8.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 519519
Weight: 2.28ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 21.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 463290
Weight: 3.55ct (total)
Size: 11.9 x 6 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 47.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 718832
Weight: 4.78ct
Size: 10 x 8.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 143.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 495369
Weight: 1.90ct
Size: 8.2 x 6.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 40.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 648838
Weight: 3.20ct
Size: 13 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 26.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 712944
Weight: 2.08ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 34.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 688088
Weight: 4.52ct
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 5.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 490284
Weight: 1.51ct
Size: 6.8 x 6.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 114.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 620847
Weight: 4.00ct (total)
Size: 12.1 x 6 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 42.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 406815
Weight: 13.37ct
Size: 14.8 x 12.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 52.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 519751
Weight: 1.59ct
Size: 10 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 41.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 714019
Weight: 0.54ct
Size: 4.3 mm
Clarity: SI
Content: 1 pc
Price: $ 16.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 712013
Weight: 11.18ct
Size: 17.2 x 10.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 29.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 520660
Weight: 1.29ct
Size: 9.7 x 4.9 mm
Clarity: VS
Content: 1 pc
Price: $ 71.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 377042
Weight: 19.12ct
Size: 21.9 x 16.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 50.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 366564
Weight: 1.12ct
Size: 7.2 x 5.8 mm
Clarity: VVS
Content: 1 pc
Price: $ 157.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 618049
Weight: 17.31ct (total)
Size: 16 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 45.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 472734
Weight: 4.85ct
Size: 20 x 13.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 12.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 639107
Weight: 1.30ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 10.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 390277
Weight: 1.12ct
Size: 8.6 x 5.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 72.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 502956
Weight: 1.81ct
Size: 14.1 x 4.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 59.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 376757
Weight: 5.05ct
Size: 11.4 x 8.6 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 57.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 701052
Weight: 8.79ct
Size: 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 8.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 392769
Weight: 6.85ct
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 45.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 698902
Weight: 2.38ct
Size: 11 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 19.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 400841
Weight: 4.32ct
Size: 10 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 28.51
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
116
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 -> 7 star ratings

Excited to see

Posted By Ss in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, trusted quality. What I have purchased has always been as discribed.

Posted By Sterling in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Ive been looking for a place to buy loose gemstones for years and was thrilled when I found this site

Posted By Bern in October, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

excellent deals-excellent service-fair prices

Posted By JD in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found exactly what I was looking for and ordered it. I like how you give information on the stones I'm buying. Glad I found you!

Posted By TheP in April, 2025
Source: Bizrate

Overall Rating -> 7 star ratings

Okay thank you.

Posted By Bepc61 in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I would recommend gem select yo everyone Fast service and no problems

Posted By Steve in March, 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 -> 7 star ratings

Excited to see

Posted By Ss in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, trusted quality. What I have purchased has always been as discribed.

Posted By Sterling in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Ive been looking for a place to buy loose gemstones for years and was thrilled when I found this site

Posted By Bern in October, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

excellent deals-excellent service-fair prices

Posted By JD in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found exactly what I was looking for and ordered it. I like how you give information on the stones I'm buying. Glad I found you!

Posted By TheP in April, 2025
Source: Bizrate

Overall Rating -> 7 star ratings

Okay thank you.

Posted By Bepc61 in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I would recommend gem select yo everyone Fast service and no problems

Posted By Steve in March, 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