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

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1.35ct Light Lively Green Sphene Gemstones, Oval, Transparent

1.35ct Light Lively Green Sphene, Oval, Transparent
ID: 662967
Weight: 1.35ct
Size: 7.2 x 5.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 8.10
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0.85ct Light Yellow Color-Change Diaspore Gemstones, Cushion, VS

0.85ct Light Yellow Color-Change Diaspore, Cushion, VS
ID: 715458
Weight: 0.85ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 54.06
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10.47ct Multicolor Agate Gemstones, Sphere / Ball, Opaque
Agate Product Video (700587)

10.47ct Multicolor Agate, Sphere / Ball, Opaque
ID: 700587
Weight: 10.47ct
Size: 11 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 8.38
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183.06ct Multicolor Ruby-Zoisite Gemstones, Oval, Opaque
Ruby-Zoisite Product Video (484087)

183.06ct Multicolor Ruby-Zoisite, Oval, Opaque
ID: 484087
Weight: 183.06ct
Size: 55.1 x 41.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 362.46
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22.95ct Grey Green Amazonite Gemstones, Fancy, Translucent

22.95ct Grey Green Amazonite, Fancy, Translucent
ID: 529734
Weight: 22.95ct
Size: 35.6 x 9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 13.78
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1.12ct Very Light Yellow Color-Change Diaspore Gemstones, Marquise, VS-SI

1.12ct Very Light Yellow Color-Change Diaspore, Marquise, VS-SI
ID: 390117
Weight: 1.12ct
Size: 10.9 x 5.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 72.56
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2.83ct Purplish Violet Amethyst Gemstones, Trillion, VS

2.83ct Purplish Violet Amethyst, Trillion, VS
ID: 572446
Weight: 2.83ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 21.79
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52.53ct Purplish Violet Amethyst Gemstones, Fancy, VVS
Amethyst Product Video (679800)

52.53ct Purplish Violet Amethyst, Fancy, VVS
ID: 679800
Weight: 52.53ct
Size: 27 x 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 504.29
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0.67ct Medium Yellow Sphalerite Gemstones, Round, SI-I1

0.67ct Medium Yellow Sphalerite, Round, SI-I1
ID: 691470
Weight: 0.67ct
Size: 4.5 mm (calibrated)
Clarity: SI-I1
Content: 1 pc
Price: $ 40.20
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0.83ct Bright Forest Green Chrome Diopside Gemstones, Marquise, VS

0.83ct Bright Forest Green Chrome Diopside, Marquise, VS
ID: 724787
Weight: 0.83ct
Size: 10 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 24.90
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1.53ct Medium Green Peridot Gemstones, Oval, VS

1.53ct Medium Green Peridot, Oval, VS
ID: 593197
Weight: 1.53ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 28.27
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22.72ct Medium Pinkish Violet Amethyst Gemstones, Emerald Cut, VVS

22.72ct Medium Pinkish Violet Amethyst, Emerald Cut, VVS
ID: 692721
Weight: 22.72ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 190.85
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2.08ct Medium-Dark Orange Hessonite Garnet Gemstones, Emerald Cut, VS-SI

2.08ct Medium-Dark Orange Hessonite Garnet, Emerald Cut, VS-SI
ID: 569232
Weight: 2.08ct
Size: 9 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 41.34
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1.53ct Golden Brown Tiger's Eye Gemstones, Marquise, Opaque

1.53ct Golden Brown Tiger's Eye, Marquise, Opaque
ID: 656168
Weight: 1.53ct
Size: 10 x 5 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 2.39
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34.23ct Yellowish Brown Tiger's Eye Gemstones, Oval, Opaque

34.23ct Yellowish Brown Tiger's Eye, Oval, Opaque
ID: 687136
Weight: 34.23ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 41.08
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5.91ct Deep Violet Amethyst Gemstones, Oval, Transparent

5.91ct Deep Violet Amethyst, Oval, Transparent
ID: 636241
Weight: 5.91ct
Size: 13.2 x 11.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 49.64
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1.86ct Rose Pink Strawberry Quartz Gemstones, Round, Translucent

1.86ct Rose Pink Strawberry Quartz, Round, Translucent
ID: 570023
Weight: 1.86ct
Size: 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 13.70
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5.92ct Vivid Violet Amethyst Gemstones, Oval, Transparent

5.92ct Vivid Violet Amethyst, Oval, Transparent
ID: 636243
Weight: 5.92ct
Size: 13.2 x 11.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 41.44
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4.80ct Light Coral Pink Morganite Gemstones, Oval, Transparent

4.80ct Light Coral Pink Morganite, Oval, Transparent
ID: 475339
Weight: 4.80ct
Size: 17.4 x 8.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 66.47
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14.41ct Medium Violet Amethyst Gemstones, Flower Cut, Translucent

14.41ct Medium Violet Amethyst, Flower Cut, Translucent
ID: 594976
Weight: 14.41ct
Size: 17.2 x 16.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 57.06
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3.06ct Deep Pink Tourmaline Gemstones, Emerald Cut, SI
Tourmaline Product Video (544792)

3.06ct Deep Pink Tourmaline, Emerald Cut, SI
ID: 544792
Weight: 3.06ct
Size: 9 x 6.3 mm
Clarity: SI
Content: 1 pc
Price: $ 232.25
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7.30ct Medium Yellow Rutile Quartz Gemstones, Pear Shape, Transparent

7.30ct Medium Yellow Rutile Quartz, Pear Shape, Transparent
ID: 435780
Weight: 7.30ct
Size: 15.1 x 11.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 23.89
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3.30ctw Deep Gold Citrine Gemstones, Square, VS

3.30ctw Deep Gold Citrine, Square, VS
ID: 557213
Weight: 3.30ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 27.61
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1.34ct Light Grape Purple Spinel Gemstones, Cushion, VS
Spinel Product Video (545751)

1.34ct Light Grape Purple Spinel, Cushion, VS
ID: 545751
Weight: 1.34ct
Size: 6.7 x 5.9 mm
Clarity: VS
Content: 1 pc
Price: $ 119.70
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97.36ctw Medium Dark-Purple Tourmaline Gemstones, Fancy, Translucent
Tourmaline Product Video (666911)

97.36ctw Medium Dark-Purple Tourmaline, Fancy, Translucent
ID: 666911
Weight: 97.36ct (total)
Size: 43.6 x 29.3 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 1,752.48
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39.39ct Fern Green Amazonite Gemstones, Fancy, Opaque

39.39ct Fern Green Amazonite, Fancy, Opaque
ID: 704701
Weight: 39.39ct
Size: 40.5 x 11.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 9.46
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8.02ctw Deep Red Pyrope Garnet Gemstones, Marquise, VVS-VS
Pyrope Garnet Product Video (462065)

8.02ctw Deep Red Pyrope Garnet, Marquise, VVS-VS
ID: 462065
Weight: 8.02ct (total)
Size: 12 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 95.59
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33.42ct Bi-color Ametrine Gemstones, Oval, VVS
Ametrine Product Video (508983)

33.42ct Bi-color Ametrine, Oval, VVS
ID: 508983
Weight: 33.42ct
Size: 24.7 x 16 mm
Clarity: VVS
Content: 1 pc
Price: $ 264.68
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3.67ct Hickory Brown Smoky Quartz Gemstones, Baguette, VVS

3.67ct Hickory Brown Smoky Quartz, Baguette, VVS
ID: 583732
Weight: 3.67ct
Size: 12 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 12.11
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5.60ct Light Peachy Golden Tourmaline Gemstones, Emerald Cut, SI
Tourmaline Product Video (704356)

5.60ct Light Peachy Golden Tourmaline, Emerald Cut, SI
ID: 704356
Weight: 5.60ct
Size: 11 x 7.8 mm
Clarity: SI
Content: 1 pc
Price: $ 736.18
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59.01ct Russet Brown Tiger's Eye Gemstones, Pear Shape, Opaque

59.01ct Russet Brown Tiger's Eye, Pear Shape, Opaque
ID: 472182
Weight: 59.01ct
Size: 33.7 x 20.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 32.71
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3.77ct Medium Pink Strawberry Quartz Gemstones, Round, Translucent

3.77ct Medium Pink Strawberry Quartz, Round, Translucent
ID: 532564
Weight: 3.77ct
Size: 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 27.37
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1.20ct Medium Dark-Brown Tiger's Eye Gemstones, Marquise, Opaque

1.20ct Medium Dark-Brown Tiger's Eye, Marquise, Opaque
ID: 656172
Weight: 1.20ct
Size: 10 x 5 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 1.87
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1.52ct Medium Light Brown Color-Change Garnet Gemstones, Cushion, VS

1.52ct Medium Light Brown Color-Change Garnet, Cushion, VS
ID: 720353
Weight: 1.52ct
Size: 7.4 x 5.2 mm
Clarity: VS
Content: 1 pc
Price: $ 146.30
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7.23ct Medium Violet Amethyst Gemstones, Pear Shape, VS

7.23ct Medium Violet Amethyst, Pear Shape, VS
ID: 478006
Weight: 7.23ct
Size: 16 x 12 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 66.24
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13.37ctw Medium-Dark Brown Smoky Quartz Gemstones, Pear Shape, VVS-VS
Smoky Quartz Product Video (587781)

13.37ctw Medium-Dark Brown Smoky Quartz, Pear Shape, VVS-VS
ID: 587781
Weight: 13.37ct (total)
Size: 15.1 x 11 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 52.94
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3.77ct Light Caramel Brown Moonstone Gemstones, Flower Cut, Translucent

3.77ct Light Caramel Brown Moonstone, Flower Cut, Translucent
ID: 485163
Weight: 3.77ct
Size: 13 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 19.91
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23.57ct Light Aqua Blue Aquamarine Gemstones, Emerald Cut, VVS
Aquamarine Product Video (486948)

23.57ct Light Aqua Blue Aquamarine, Emerald Cut, VVS
ID: 486948
Weight: 23.57ct
Size: 30.7 x 9.5 mm
Clarity: VVS
Content: 1 pc
Price: $ 4,242.60
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5.96ct Iris Violet Amethyst Gemstones, Round, Transparent

5.96ct Iris Violet Amethyst, Round, Transparent
ID: 635495
Weight: 5.96ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 50.06
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3.04ctw Multicolor Opal Gemstones, Round, Transparent

3.04ctw Multicolor Opal, Round, Transparent
ID: 477536
Weight: 3.04ct (total)
Size: 6.5 mm (calibrated)
Clarity: Transparent
Content: 4 pcs
Price: $ 85.51
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2.64ct Medium-Light Violet Amethyst Gemstones, Round, VS

2.64ct Medium-Light Violet Amethyst, Round, VS
ID: 460789
Weight: 2.64ct
Size: 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 24.40
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6.51ct Medium-Light Brown Smoky Quartz Gemstones, Flower Cut, Transparent

6.51ct Medium-Light Brown Smoky Quartz, Flower Cut, Transparent
ID: 599839
Weight: 6.51ct
Size: 14.2 x 10 mm
Clarity: Transparent
Price: $ 29.14
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1.06ct Yellowish Orange Hessonite Garnet Gemstones, Round, VS

1.06ct Yellowish Orange Hessonite Garnet, Round, VS
ID: 622559
Weight: 1.06ct
Size: 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 22.30
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7.64ct Grayish Green Tourmaline Gemstones, Flower Cut, Transparent
Tourmaline Product Video (690556)

7.64ct Grayish Green Tourmaline, Flower Cut, Transparent
ID: 690556
Weight: 7.64ct
Size: 14 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 149.51
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1.43ct Medium-Dark Orange Hessonite Garnet Gemstones, Round, VS

1.43ct Medium-Dark Orange Hessonite Garnet, Round, VS
ID: 519885
Weight: 1.43ct
Size: 6.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 37.75
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12.57ct Medium-Light Violet Amethyst Gemstones, Flower Cut, Translucent

12.57ct Medium-Light Violet Amethyst, Flower Cut, Translucent
ID: 595041
Weight: 12.57ct
Size: 21 x 14.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 45.25
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12.56ct Medium Violet Amethyst Gemstones, Fancy, Transparent

12.56ct Medium Violet Amethyst, Fancy, Transparent
ID: 446274
Weight: 12.56ct
Size: 20.2 x 14.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 45.22
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1.32ct Deep Blue Kyanite Gemstones, Round, SI

1.32ct Deep Blue Kyanite, Round, SI
ID: 680787
Weight: 1.32ct
Size: 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 39.60
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0.96ct Golden-Brown Sphalerite Gemstones, Oval, SI-I1

0.96ct Golden-Brown Sphalerite, Oval, SI-I1
ID: 691693
Weight: 0.96ct
Size: 6 x 5 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 57.60
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1.26ct Multicolor Opal Gemstones, Oval, Translucent
Opal Product Video (503728)

1.26ct Multicolor Opal, Oval, Translucent
ID: 503728
Weight: avg. 1.26 ct / each
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Price: $ 36.59
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1.50ct champagne Diamond Gemstones, Round, SI
Diamond Product Video (378642)

1.50ct champagne Diamond, Round, SI
ID: 378642
Weight: 1.50ct
Size: 7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 5,148.00
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0.58ct Lively Green Peridot Gemstones, Emerald Cut, VS

0.58ct Lively Green Peridot, Emerald Cut, VS
ID: 682704
Weight: 0.58ct
Size: 6 x 4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 10.44
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5.39ct Medium Violet Amethyst Gemstones, Pear Shape, VVS

5.39ct Medium Violet Amethyst, Pear Shape, VVS
ID: 665044
Weight: 5.39ct
Size: 15.7 x 11.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 45.28
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2.47ct Multicolor Labradorite Gemstones, Round, Translucent
Labradorite Product Video (617879)

2.47ct Multicolor Labradorite, Round, Translucent
ID: 617879
Weight: avg. 2.47 ct / each
Size: 8 mm (calibrated)
Clarity: Translucent
Price: $ 3.23
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0.85ctw Light Lively Green Peridot Gemstones, Pear Shape, VVS-VS

0.85ctw Light Lively Green Peridot, Pear Shape, VVS-VS
ID: 539798
Weight: 0.85ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 8.98
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12.15ctw Dark Green Aventurine Gemstones, Pear Shape, Translucent

12.15ctw Dark Green Aventurine, Pear Shape, Translucent
ID: 593885
Weight: 12.15ct (total)
Size: 17 x 11.1 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 32.08
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114.96ct Medium Violet Amethyst Gemstones, Oval, VVS
Amethyst Product Video (610376)

114.96ct Medium Violet Amethyst, Oval, VVS
ID: 610376
Weight: 114.96ct
Size: 39.9 x 27.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 885.19
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0.94ct Light Golden Yellow Color-Change Diaspore Gemstones, Cushion, VS

0.94ct Light Golden Yellow Color-Change Diaspore, Cushion, VS
ID: 389313
Weight: 0.94ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 40.46
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3.43ct Pale Yellow Cat's Eye Opal Gemstones, Oval, Opaque

3.43ct Pale Yellow Cat's Eye Opal, Oval, Opaque
ID: 693393
Weight: 3.43ct
Size: 10.4 x 8.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 12.35
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8.83ct Rose Pink Strawberry Quartz Gemstones, Oval, Translucent

8.83ct Rose Pink Strawberry Quartz, Oval, Translucent
ID: 527523
Weight: 8.83ct
Size: 16 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 63.88
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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 -> 10 star ratings

Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.

Posted By Sina in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I always purchase my stones from GemSelect, their products are high quality and customer service is always great. I also like the fact that I am able to purchase unique items

Posted By Desperaux in November, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 2025
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Overall Rating -> 10 star ratings

easy site to navigate

Posted By Curt's Cabochons in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love the website, selection and products. Can you guys add a gemstones with inclusions tab. I like those it'd be nice to have them all in one place but i do understand it would be alot of work to go through and categorize them. Thank you anyways

Posted By The homie edgar in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

very good

Posted By Son Gift in January, 2025
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Overall Rating -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
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Overall Rating -> 10 star ratings

It was easy to navigate

Posted By GemGod in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

The purchasing process is fairly quick and straightforward and for me user friendly so it probably took more or less than 3 minutes to purchase and pay for the items. I wish there was a discount offer for multiple items to encourage us buyers to purchase more an incentive and add more sales in your end. Besides that, it's been a great purchasing experience and will continue to shop as I am a repeat customer and have bought from your store many times before. Thank you.

Posted By Emmanuel in October, 2025
Source: Bizrate
Enlarged Gemstone Image