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Loose Untreated Gemstones: Certified Natural Gems for Collectors and Jewelry, Wholesale Untreated Stones

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3.85ctw Natural Purplish Violet Amethyst, Oval, VVS-VS

3.85ctw Natural Purplish Violet Amethyst, Oval, VVS-VS
ID: 358112
Weight: 3.85ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 10 pcs
Price: $ 25.42
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8.36ctw Natural Clear White Topaz, Square, VS

8.36ctw Natural Clear White Topaz, Square, VS
ID: 500940
Weight: 8.36ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 77.24
Item in Stock
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13.20ct Natural Mahogany Red Star Garnet, Oval, Opaque

13.20ct Natural Mahogany Red Star Garnet, Oval, Opaque
ID: 691779
Weight: 13.20ct
Size: 17.4 x 9.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 16.48
Item in Stock
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5.47ct Natural Multicolor Agate, Sphere / Ball, Opaque

5.47ct Natural Multicolor Agate, Sphere / Ball, Opaque
ID: 701053
Weight: 5.47ct
Size: 9 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 5.26
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7.61ct Natural Light Pink Morganite, Oval, Translucent

7.61ct Natural Light Pink Morganite, Oval, Translucent
ID: 619143
Weight: 7.61ct
Size: 14 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 100.45
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1.52ct Natural Medium Orange Hessonite Garnet, Oval, VS

1.52ct Natural Medium Orange Hessonite Garnet, Oval, VS
ID: 660000
Weight: 1.52ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 36.48
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4.43ct Natural Medium-Dark Golden Citrine, Oval, VVS-VS

4.43ct Natural Medium-Dark Golden Citrine, Oval, VVS-VS
ID: 520287
Weight: 4.43ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 40.93
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15.67ct Natural Very Light Pink Rose Quartz, Oval, Translucent

15.67ct Natural Very Light Pink Rose Quartz, Oval, Translucent
ID: 323095
Weight: 15.67ct
Size: 17.5 x 14.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 18.96
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1.15ct Natural Reddish Orange Zircon, Oval, VVS-VS

1.15ct Natural Reddish Orange Zircon, Oval, VVS-VS
ID: 719835
Weight: 1.15ct
Size: 5.9 x 4.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 20.70
Item in Stock
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1.97ct Natural Deep Orange-Gold Citrine, Oval, VS

1.97ct Natural Deep Orange-Gold Citrine, Oval, VS
ID: 456595
Weight: 1.97ct
Size: 9.4 x 7.2 mm
Clarity: VS
Content: 1 pc
Price: $ 18.20
Item in Stock
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2.22ct Natural Light Yellow Beryl, Oval, VVS

2.22ct Natural Light Yellow Beryl, Oval, VVS
ID: 672082
Weight: 2.22ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 53.28
Item in Stock
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68.44ct Natural Yellowish Brown Tiger's Eye Matrix, Fancy, Opaque

68.44ct Natural Yellowish Brown Tiger's Eye Matrix, Fancy, Opaque
ID: 696213
Weight: 68.44ct
Size: 55.5 x 19.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 46.81
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1.14ct Natural Golden Yellow Color-Change Diaspore, Emerald Cut, VVS-VS

1.14ct Natural Golden Yellow Color-Change Diaspore, Emerald Cut, VVS-VS
ID: 715686
Weight: 1.14ct
Size: 7.4 x 4.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 72.50
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2.00ctw Natural Fire Orange Spessartite Garnet, Oval, VS

2.00ctw Natural Fire Orange Spessartite Garnet, Oval, VS
ID: 390021
Weight: 2.00ct (total)
Size: 5.3 x 4.3 mm
Clarity: VS
Content: 4 pcs
Price: $ 92.14
Item in Stock
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3.73ct Natural Light Orange Sunstone, Oval, Translucent

3.73ct Natural Light Orange Sunstone, Oval, Translucent
ID: 514400
Weight: 3.73ct
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 27.04
Item in Stock
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1.74ct Natural Peach Orange Moonstone, Square, Translucent

1.74ct Natural Peach Orange Moonstone, Square, Translucent
ID: 660022
Weight: 1.74ct
Size: 7 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.20
Item in Stock
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8.34ct Natural Mahogany Red Star Garnet, Oval, Opaque

8.34ct Natural Mahogany Red Star Garnet, Oval, Opaque
ID: 723474
Weight: 8.34ct
Size: 12 x 9.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 9.91
Item in Stock
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0.65ct Natural Light Golden-Yellow Beryl, Oval, VVS-VS

0.65ct Natural Light Golden-Yellow Beryl, Oval, VVS-VS
ID: 688780
Weight: 0.65ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 19.50
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1.19ct Natural Dark Red Pyrope Garnet, Marquise, VVS-VS

1.19ct Natural Dark Red Pyrope Garnet, Marquise, VVS-VS
ID: 498324
Weight: 1.19ct
Size: 9.9 x 5.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 12.56
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1.13ct Natural Deep Orange-Gold Citrine, Trillion, VS

1.13ct Natural Deep Orange-Gold Citrine, Trillion, VS
ID: 550829
Weight: 1.13ct
Size: 7 x 7 mm (calibrated)
Clarity: VS
Price: $ 8.50
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4.33ct Natural Medium Pink Strawberry Quartz, Oval, Translucent

4.33ct Natural Medium Pink Strawberry Quartz, Oval, Translucent
ID: 712665
Weight: 4.33ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 62.35
Item in Stock
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35.75ct Natural Brown Black Obsidian, Fancy, Opaque

35.75ct Natural Brown Black Obsidian, Fancy, Opaque
ID: 433621
Weight: 35.75ct
Size: 31.5 x 24.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 47.20
Item in Stock
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2.24ct Natural Light Yellow Apatite, Emerald Cut, VS-SI

2.24ct Natural Light Yellow Apatite, Emerald Cut, VS-SI
ID: 439161
Weight: 2.24ct
Size: 7.4 x 7.4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 138.97
Item in Stock
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26.27ct Natural Light Green Amazonite, Fancy, Opaque

26.27ct Natural Light Green Amazonite, Fancy, Opaque
ID: 704995
Weight: 26.27ct
Size: 35.7 x 9.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 6.30
Item in Stock
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4.42ct Natural Black Star Diopside, Oval, Opaque

4.42ct Natural Black Star Diopside, Oval, Opaque
ID: 734973
Weight: 4.42ct
Size: 11 x 9 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 22.10
Item in Stock
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8.36ctw Natural Multicolor Pietersite, Pear Shape, Opaque

8.36ctw Natural Multicolor Pietersite, Pear Shape, Opaque
ID: 602235
Weight: 8.36ct (total)
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 44.47
Item in Stock
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73.50ct Natural Purplish Violet Amethyst, Oval, VVS-VS
Amethyst Product Video (639277)

73.50ct Natural Purplish Violet Amethyst, Oval, VVS-VS
ID: 639277
Weight: 73.50ct
Size: 28.1 x 24.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 607.91
Item in Stock
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2.37ct Natural Medium Orange Spessartite Garnet, Oval, Transparent

2.37ct Natural Medium Orange Spessartite Garnet, Oval, Transparent
ID: 719941
Weight: 2.37ct
Size: 8 x 6.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 71.10
Item in Stock
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8.19ct Natural Multicolor Fire Agate, Fancy, Opaque

8.19ct Natural Multicolor Fire Agate, Fancy, Opaque
ID: 574855
Weight: 8.19ct
Size: 14.4 x 13 mm
Clarity: Opaque
Content: 1 pc
Price: $ 74.16
Item in Stock
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21.23ct Natural White with Black Rainbow Moonstone, Fancy, Opaque

21.23ct Natural White with Black Rainbow Moonstone, Fancy, Opaque
ID: 693045
Weight: 21.23ct
Size: 26.6 x 10.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 7.64
Item in Stock
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4.87ct Natural Hickory Brown Smoky Quartz, Round, VVS

4.87ct Natural Hickory Brown Smoky Quartz, Round, VVS
ID: 459720
Weight: 4.87ct
Size: 11 mm (calibrated)
Clarity: VVS
Price: $ 9.64
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1.69ct Natural Medium Pink Strawberry Quartz, Oval, Translucent

1.69ct Natural Medium Pink Strawberry Quartz, Oval, Translucent
ID: 553570
Weight: 1.69ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 10.18
Item in Stock
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2.03ct Natural Deep Golden Orange Citrine, Trillion, VVS-VS

2.03ct Natural Deep Golden Orange Citrine, Trillion, VVS-VS
ID: 545584
Weight: 2.03ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 15.14
Item in Stock
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25.34ct Natural Light Grey Jadeite, Oval, Opaque

25.34ct Natural Light Grey Jadeite, Oval, Opaque
ID: 382792
Weight: 25.34ct
Size: 23.3 x 17.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 50.17
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0.74ct Natural Bright Green Sphene, Oval, VS-SI

0.74ct Natural Bright Green Sphene, Oval, VS-SI
ID: 510631
Weight: 0.74ct
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 42.00
Item in Stock
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1.14ct Natural Boysenberry Spinel, Pear Shape, VS

1.14ct Natural Boysenberry Spinel, Pear Shape, VS
ID: 353075
Weight: 1.14ct
Size: 7.9 x 5.3 mm
Clarity: VS
Content: 1 pc
Price: $ 146.72
Item in Stock
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0.75ct Natural Lively Green Peridot, Oval, VS

0.75ct Natural Lively Green Peridot, Oval, VS
ID: 713773
Weight: 0.75ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 12.60
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3.44ctw Natural Deep Golden Orange Citrine, Square, VVS-VS

3.44ctw Natural Deep Golden Orange Citrine, Square, VVS-VS
ID: 515022
Weight: 3.44ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 31.79
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1.33ctw Natural Light Blue Kyanite, Round, SI

1.33ctw Natural Light Blue Kyanite, Round, SI
ID: 714088
Weight: 1.33ct (total)
Size: 5 mm (calibrated)
Clarity: SI
Content: 2 pcs
Price: $ 39.90
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1.19ct Natural Medium Yellow Beryl, Round, VVS

1.19ct Natural Medium Yellow Beryl, Round, VVS
ID: 635853
Weight: 1.19ct
Size: 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 31.42
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0.96ct Natural Medium Green Peridot, Oval, VS

0.96ct Natural Medium Green Peridot, Oval, VS
ID: 698903
Weight: 0.96ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 8.06
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32.47ct Natural Multicolor Jasper, Oval, Opaque

32.47ct Natural Multicolor Jasper, Oval, Opaque
ID: 481200
Weight: 32.47ct
Size: 31.9 x 23.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 32.15
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1.65ctw Natural Deep Red Pyrope Garnet, Square, VVS-VS

1.65ctw Natural Deep Red Pyrope Garnet, Square, VVS-VS
ID: 451055
Weight: 1.65ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 15.25
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9.61ct Natural Multicolor Labradorite, Pear Shape, Translucent

9.61ct Natural Multicolor Labradorite, Pear Shape, Translucent
ID: 712009
Weight: 9.61ct
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 25.60
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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 -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.

Posted By Jezzi in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
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 -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
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

Had no difficulty with the website. The only difficulty I had today was making the choice of what I wanted to purchase. There are just so many delicious stones to choose from!!

Posted By Desertchick in July, 2024
Source: Bizrate

Overall Rating -> 7 star ratings

Excited to see

Posted By Ss in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

easy site to navigate

Posted By Curt's Cabochons in June, 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 -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.

Posted By Jezzi in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
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 -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
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

Had no difficulty with the website. The only difficulty I had today was making the choice of what I wanted to purchase. There are just so many delicious stones to choose from!!

Posted By Desertchick in July, 2024
Source: Bizrate

Overall Rating -> 7 star ratings

Excited to see

Posted By Ss in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

easy site to navigate

Posted By Curt's Cabochons in June, 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