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: 731022
Weight: 13.83ct (total)
Size: 18.7 x 12.3 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 9.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 689919
Weight: 0.65ct
Size: 9 x 5.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 6.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 686521
Weight: 0.22ct (total)
Size: 2.7 x 2.7 mm
Clarity: VS
Content: 2 pcs
Price: $ 10.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 636191
Weight: 2.47ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 71.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 486220
Weight: 7.05ct
Size: 14.5 x 10.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 59.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 662677
Weight: 26.08ct (total)
Size: 25.8 x 16.3 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 18.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 492756
Weight: 4.97ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 35.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 480024
Weight: 2.64ct
Size: 9.2 x 8.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 24.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 512782
Weight: 2.55ct
Size: 9 x 7.4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 55.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 721813
Weight: 7.58ct
Size: 17.7 x 10.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 27.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 529125
Weight: 18.91ct
Size: 32.5 x 8.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 12.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 663342
Weight: 28.02ct (total)
Size: 25.3 x 15.8 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 19.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 648043
Weight: 0.99ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 26.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 474551
Weight: 21.93ct
Size: 28.8 x 28.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 28.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 479808
Weight: 3.51ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 216.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 737162
Weight: 4.33ct
Size: 13 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 21.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 465221
Weight: 4.05ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 35.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 391170
Weight: 38.62ct (total)
Size: 35.4 x 20.7 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 76.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 435088
Weight: 25.69ct
Size: 27 x 20 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 33.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 678145
Weight: 6.76ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 16.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 481453
Weight: 4.31ct (total)
Size: 6 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 123.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 670434
Weight: 0.33ct
Size: 4 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 9.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 704818
Weight: 1.86ct
Size: 11.9 x 8.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 55.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 344806
Weight: 27.89ct
Size: 25.4 x 14.6 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 49.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 461978
Weight: 5.64ct (total)
Size: 12.1 x 6 mm
Clarity: VVS-VS
Content: 3 pcs
Price: $ 67.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 431315
Weight: 1.86ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 44.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 479283
Weight: 2.39ct (total)
Size: 10.1 x 5.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 25.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 565412
Weight: 4.61ct
Size: 15.8 x 9.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 18.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 563539
Weight: 0.92ct
Size: 7.4 x 5.5 mm
Clarity: SI
Content: 1 pc
Price: $ 20.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 518175
Weight: 8.14ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 31.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 725442
Weight: 0.89ct
Size: 13.2 x 3 mm
Clarity: VVS
Content: 1 pc
Price: $ 37.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 548413
Weight: 1.77ct
Size: 8 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 35.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 598312
Weight: 1.52ct
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 30.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 532372
Weight: 3.90ct
Size: 10 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 28.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 678396
Weight: 20.61ct (total)
Size: 29.7 x 12.7 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 24.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 500975
Weight: 6.28ct
Size: 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 58.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 694756
Weight: 5.06ct
Size: 9.7 x 8.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 151.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 464474
Weight: 4.78ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 44.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 694417
Weight: 17.59ct
Size: 22.4 x 16.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 714941
Weight: 7.25ct
Size: 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 18.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 660183
Weight: 1.86ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 15.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 447495
Weight: 47.66ct
Size: 16.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 125.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 712175
Weight: 6.63ct (total)
Size: 14 x 7 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 17.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 712302
Weight: 10.46ct (total)
Size: 16 x 8 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 27.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 364100
Weight: 13.26ct
Size: 21.1 x 15.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 35.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 655929
Weight: 1.50ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 36.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 565512
Weight: 4.29ct
Size: 12 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 28.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 712945
Weight: 0.85ct
Size: 6.6 x 5.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 16.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 364415
Weight: 1.90ct
Size: 13 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 100.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 484319
Weight: 26.12ct
Size: 26.5 x 16.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 172.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 714017
Weight: 0.40ct
Size: 4.3 mm
Clarity: SI
Content: 1 pc
Price: $ 10.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 721341
Weight: 36.25ct
Size: 36.4 x 20.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 130.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 711440
Weight: 3.19ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 63.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 678877
Weight: 9.98ct
Size: 21.9 x 14 mm
Clarity: Opaque
Content: 1 pc
Price: $ 59.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 585383
Weight: 0.56ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 19.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 726034
Weight: 2.11ct (total)
Size: 7 x 6 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 83.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 663718
Weight: 98.10ct
Size: 34.2 x 27.6 mm
Clarity: IF
Content: 1 pc
Price: $ 826.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 551312
Weight: 3.10ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 27.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 537694
Weight: 1.46ct
Size: 11.9 x 4.2 mm
Clarity: VS
Content: 1 pc
Price: $ 132.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 512790
Weight: 1.78ct
Size: 9 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 38.51
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
321
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

I have ordered from Genselect before and always had a great experience. My go to source!

Posted By Kycaver in October, 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 been buying gems for several years off and on and love their selection and great low prices. I started out wanting to get an example of each type of gem but after looking at all the types of gems and reading about them I realize it is almost impossible for me to do. It took me years just to read about them all. Gem Select is the best gem site you can find. For information or to buy. Steve M.

Posted By Stevee M. in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

love these guys been ordering since 2000 maybe

Posted By JHT in April, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

The checkout said the my ccv was invalid. i had to use another card.

Posted By Ron in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent selection and easy to use, well done site

Posted By Steph in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.

Posted By Razormane 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

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

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

I have ordered from Genselect before and always had a great experience. My go to source!

Posted By Kycaver in October, 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 been buying gems for several years off and on and love their selection and great low prices. I started out wanting to get an example of each type of gem but after looking at all the types of gems and reading about them I realize it is almost impossible for me to do. It took me years just to read about them all. Gem Select is the best gem site you can find. For information or to buy. Steve M.

Posted By Stevee M. in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

love these guys been ordering since 2000 maybe

Posted By JHT in April, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

The checkout said the my ccv was invalid. i had to use another card.

Posted By Ron in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent selection and easy to use, well done site

Posted By Steph in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.

Posted By Razormane 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

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

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