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

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5.38ctw Deep Orange Hessonite Garnet Gemstones, Cushion, VS-SI

5.38ctw Deep Orange Hessonite Garnet, Cushion, VS-SI
ID: 662869
Weight: 5.38ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 107.60
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9.31ct Light Cool Green Fluorite Gemstones, Pear Shape, Transparent

9.31ct Light Cool Green Fluorite, Pear Shape, Transparent
ID: 634013
Weight: 9.31ct
Size: 13.9 x 11.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 23.55
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37.43ct Multicolor Labradorite Gemstones, Oval, Opaque

37.43ct Multicolor Labradorite, Oval, Opaque
ID: 694535
Weight: 37.43ct
Size: 32.8 x 22.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 40.43
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1.36ct Deep Purple Spinel Gemstones, Oval, VVS

1.36ct Deep Purple Spinel, Oval, VVS
ID: 349458
Weight: 1.36ct
Size: 8.4 x 6.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 171.36
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45.71ct Gold Pyrite Gemstones, Marquise, Opaque

45.71ct Gold Pyrite, Marquise, Opaque
ID: 486785
Weight: 45.71ct
Size: 37.9 x 18.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 66.37
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30.70ct Multicolor Pietersite Gemstones, Oval, Opaque
Pietersite Product Video (351524)

30.70ct Multicolor Pietersite, Oval, Opaque
ID: 351524
Weight: 30.70ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 162.10
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7.18ct Light Green Blue Grandidierite Gemstones, Pear Shape, Translucent
Grandidierite Product Video (472004)

7.18ct Light Green Blue Grandidierite, Pear Shape, Translucent
ID: 472004
Weight: 7.18ct
Size: 14 x 11.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 1,895.52
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9.42ct Dijon Yellow Apatite Gemstones, Cushion, VS
Apatite Product Video (387418)

9.42ct Dijon Yellow Apatite, Cushion, VS
ID: 387418
Weight: 9.42ct
Size: 13 x 13 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 569.91
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10.57ct Deep Yellow Apatite Gemstones, Emerald Cut, VS
Apatite Product Video (407299)

10.57ct Deep Yellow Apatite, Emerald Cut, VS
ID: 407299
Weight: 10.57ct
Size: 15.1 x 10.9 mm
Clarity: VS
Content: 1 pc
Price: $ 348.82
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32.39ct Brownish Green Cat's Eye Opal Gemstones, Oval, Opaque

32.39ct Brownish Green Cat's Eye Opal, Oval, Opaque
ID: 669731
Weight: 32.39ct
Size: 22.3 x 20.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 97.18
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8.03ct Medium Yellow Apatite Gemstones, Pear Shape, VS
Apatite Product Video (385931)

8.03ct Medium Yellow Apatite, Pear Shape, VS
ID: 385931
Weight: 8.03ct
Size: 17 x 11 mm
Clarity: VS
Content: 1 pc
Price: $ 510.91
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26.04ct Pine Green Amazonite Gemstones, Oval, Opaque
Amazonite Product Video (484654)

26.04ct Pine Green Amazonite, Oval, Opaque
ID: 484654
Weight: 26.04ct
Size: 26.4 x 13.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 20.83
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1.10ct Light Golden Morganite Gemstones, Oval, VS

1.10ct Light Golden Morganite, Oval, VS
ID: 623789
Weight: 1.10ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 79.86
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0.11ct Black Diamond Gemstones, Square, Opaque
Diamond Product Video (677914)

0.11ct Black Diamond, Square, Opaque
ID: 677914
Weight: avg. 0.11 ct / each
Size: 2.4 x 2.3 mm
Clarity: Opaque
Price: $ 55.77
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20.48ct Multicolor Pietersite Gemstones, Oval, Opaque
Pietersite Product Video (650671)

20.48ct Multicolor Pietersite, Oval, Opaque
ID: 650671
Weight: 20.48ct
Size: 28.2 x 19.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 48.13
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0.51ctw H Diamond Gemstones, Heart, VVS
Diamond Product Video (685659)

0.51ctw H Diamond, Heart, VVS
ID: 685659
Weight: 0.51ct (total)
Size: 3.3 x 2.9 mm
Clarity: VVS
Content: 5 pcs
Price: $ 2,503.44
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19.24ctw Bright Green Aventurine Gemstones, Fancy, Translucent

19.24ctw Bright Green Aventurine, Fancy, Translucent
ID: 595297
Weight: 19.24ct (total)
Size: 21.2 x 10.2 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 50.80
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13.51ct Multicolor Quartz With Marcasite Gemstones, Pear Shape, Transparent

13.51ct Multicolor Quartz With Marcasite, Pear Shape, Transparent
ID: 522183
Weight: 13.51ct
Size: 23.4 x 13.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 107.00
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23.51ct Light Sea Green Prehnite Gemstones, Fancy, Translucent

23.51ct Light Sea Green Prehnite, Fancy, Translucent
ID: 469751
Weight: 23.51ct
Size: 22.4 x 14.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 49.04
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79.66ct Multicolor Agate Gemstones, Oval, Opaque

79.66ct Multicolor Agate, Oval, Opaque
ID: 692420
Weight: 79.66ct
Size: 26.8 x 23.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 57.36
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0.60ct Yellowish Green Demantoid Garnet Gemstones, Oval, VS

0.60ct Yellowish Green Demantoid Garnet, Oval, VS
ID: 278819
Weight: 0.60ct
Size: 6 x 4.2 mm
Clarity: VS
Content: 1 pc
Price: $ 198.00
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25.27ct Multicolor Quartz With Marcasite Gemstones, Pear Shape, Transparent
Quartz With Marcasite Product Video (521442)

25.27ct Multicolor Quartz With Marcasite, Pear Shape, Transparent
ID: 521442
Weight: 25.27ct
Size: 32.3 x 14.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 200.14
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20.10ct Multicolor Boulder Opal Gemstones, Cushion, Opaque

20.10ct Multicolor Boulder Opal, Cushion, Opaque
ID: 679248
Weight: 20.10ct
Size: 21.1 x 16.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 120.60
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9.93ct Light Mocha Smoky Quartz Gemstones, Round, VVS-VS
Smoky Quartz Product Video (602189)

9.93ct Light Mocha Smoky Quartz, Round, VVS-VS
ID: 602189
Weight: 9.93ct
Size: 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 48.23
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13.71ct Yellowish Gold Apatite Gemstones, Cushion, VS
Apatite Product Video (407302)

13.71ct Yellowish Gold Apatite, Cushion, VS
ID: 407302
Weight: 13.71ct
Size: 14.9 x 14 mm
Clarity: VS
Content: 1 pc
Price: $ 682.26
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6.71ct Light Yellow Green Color-Change Diaspore Gemstones, Emerald Cut, VS
Color-Change Diaspore Product Video (391064)

6.71ct Light Yellow Green Color-Change Diaspore, Emerald Cut, VS
ID: 391064
Weight: 6.71ct
Size: 22.7 x 7.5 mm
Clarity: VS
Content: 1 pc
Price: $ 3,277.16
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3.81ct Multicolor Fire Agate Gemstones, Fancy, Opaque

3.81ct Multicolor Fire Agate, Fancy, Opaque
ID: 622821
Weight: 3.81ct
Size: 11.6 x 9.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 64.68
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0.81ct Medium-Dark Green Sphene Gemstones, Oval, VS-SI

0.81ct Medium-Dark Green Sphene, Oval, VS-SI
ID: 513370
Weight: 0.81ct
Size: 6.6 x 4.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 58.81
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36.33ct Multicolor Opal Gemstones, Oval, Opaque
Opal Product Video (667939)

36.33ct Multicolor Opal, Oval, Opaque
ID: 667939
Weight: 36.33ct
Size: 32.2 x 22.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 130.79
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25.48ct Medium-Light Brown Tiger's Eye Gemstones, Fancy, Opaque

25.48ct Medium-Light Brown Tiger's Eye, Fancy, Opaque
ID: 517254
Weight: 25.48ct
Size: 33.4 x 18.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 26.23
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9.88ct Clear White Quartz Cat's Eye Gemstones, Round, Transparent

9.88ct Clear White Quartz Cat's Eye, Round, Transparent
ID: 351467
Weight: 9.88ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 43.47
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5.60ct Pine Green Amazonite Gemstones, Marquise, Opaque

5.60ct Pine Green Amazonite, Marquise, Opaque
ID: 492351
Weight: 5.60ct
Size: 20 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 13.49
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30.50ct Multicolor Boulder Opal Gemstones, Pear Shape, Translucent
Boulder Opal Product Video (523672)

30.50ct Multicolor Boulder Opal, Pear Shape, Translucent
ID: 523672
Weight: 30.50ct
Size: 30 x 22 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 201.30
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9.09ct Yellowish Green Prehnite Gemstones, Oval, Translucent
Prehnite Product Video (219857)

9.09ct Yellowish Green Prehnite, Oval, Translucent
ID: 219857
Weight: 9.09ct
Size: 16 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 53.99
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17.23ct Very Light Golden-Brown Rutile Quartz Gemstones, Pear Shape, Transparent
Rutile Quartz Product Video (406663)

17.23ct Very Light Golden-Brown Rutile Quartz, Pear Shape, Transparent
ID: 406663
Weight: 17.23ct
Size: 21.5 x 15.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 70.74
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7.10ct Multicolor Ruby in Fuchsite Gemstones, Marquise, Translucent

7.10ct Multicolor Ruby in Fuchsite, Marquise, Translucent
ID: 385256
Weight: 7.10ct
Size: 25 x 10.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 63.91
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13.98ct Medium Blue Green Grandidierite Gemstones, Oval, SI
Grandidierite Product Video (470658)

13.98ct Medium Blue Green Grandidierite, Oval, SI
ID: 470658
Weight: 13.98ct
Size: 16.5 x 13.7 mm
Clarity: SI
Content: 1 pc
Price: $ 9,226.80
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8.65ct Cool Green Amazonite Gemstones, Marquise, Opaque

8.65ct Cool Green Amazonite, Marquise, Opaque
ID: 492354
Weight: 8.65ct
Size: 18.9 x 10.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 25.00
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13.45ct Light Blue Chalcedony Gemstones, Pear Shape, Opaque

13.45ct Light Blue Chalcedony, Pear Shape, Opaque
ID: 694298
Weight: 13.45ct
Size: 21.7 x 15.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 40.36
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0.16ct Dark Bluish Purple Iolite Gemstones, Oval, VVS

0.16ct Dark Bluish Purple Iolite, Oval, VVS
ID: 686626
Weight: 0.16ct
Size: 4.6 x 2.9 mm
Clarity: VVS
Content: 1 pc
Price: $ 6.40
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36.35ct Medium Violet Charoite Gemstones, Trillion, Opaque

36.35ct Medium Violet Charoite, Trillion, Opaque
ID: 363120
Weight: 36.35ct
Size: 30.8 x 20.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 54.53
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1.04ct Dark Gold Sphalerite Gemstones, Oval, SI-I1

1.04ct Dark Gold Sphalerite, Oval, SI-I1
ID: 691704
Weight: 1.04ct
Size: 7 x 5 mm (calibrated)
Clarity: SI-I1
Content: 1 pc
Price: $ 62.40
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0.15ctw I Diamond Gemstones, Round, VVS-VS

0.15ctw I Diamond, Round, VVS-VS
ID: 565165
Weight: 0.15ct (total)
Size: 2.8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 328.36
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4.94ct Light Yellow Apatite Gemstones, Baguette, VS
Apatite Product Video (438947)

4.94ct Light Yellow Apatite, Baguette, VS
ID: 438947
Weight: 4.94ct
Size: 12.5 x 7.4 mm
Clarity: VS
Content: 1 pc
Price: $ 306.48
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44.58ct Light Greenish Blue Larimar Gemstones, Fancy, Opaque
Larimar Product Video (492337)

44.58ct Light Greenish Blue Larimar, Fancy, Opaque
ID: 492337
Weight: 44.58ct
Size: 26.4 x 22.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 582.60
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1.71ct Light Rosewood Pink Malaya Garnet Gemstones, Marquise, VS-SI

1.71ct Light Rosewood Pink Malaya Garnet, Marquise, VS-SI
ID: 520631
Weight: 1.71ct
Size: 10.8 x 5.4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 71.82
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10.12ct Lilac Kunzite Gemstones, Oval, VS
Kunzite Product Video (409936)

10.12ct Lilac Kunzite, Oval, VS
ID: 409936
Weight: 10.12ct
Size: 17.7 x 10.1 mm
Clarity: VS
Content: 1 pc
Price: $ 345.31
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3.94ctw Medium Yellow Sillimanite Gemstones, Oval, VS

3.94ctw Medium Yellow Sillimanite, Oval, VS
ID: 411372
Weight: 3.94ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 117.38
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7.18ct Salmon Pink Morganite Gemstones, Oval, Transparent

7.18ct Salmon Pink Morganite, Oval, Transparent
ID: 654798
Weight: 7.18ct
Size: 11.9 x 10.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 94.78
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26.17ct Medium Rose Pink Smithsonite Gemstones, Cushion, Transparent
Smithsonite Product Video (380713)

26.17ct Medium Rose Pink Smithsonite, Cushion, Transparent
ID: 380713
Weight: 26.17ct
Size: 15 x 15 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 930.62
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9.89ct Pine Green Tsavorite Garnet Gemstones, Pear Shape, Translucent
Tsavorite Garnet Product Video (522842)

9.89ct Pine Green Tsavorite Garnet, Pear Shape, Translucent
ID: 522842
Weight: 9.89ct
Size: 17.3 x 11.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 261.10
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0.14ctw Black Diamond Gemstones, Square, Opaque

0.14ctw Black Diamond, Square, Opaque
ID: 677817
Weight: 0.14ct (total)
Size: 2.2 x 2.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 84.00
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84.82ct Multicolor Jasper Gemstones, Oval, Opaque

84.82ct Multicolor Jasper, Oval, Opaque
ID: 470775
Weight: 84.82ct
Size: 41.6 x 31.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 81.79
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1.23ct Very Light Yellow Color-Change Diaspore Gemstones, Pear Shape, SI

1.23ct Very Light Yellow Color-Change Diaspore, Pear Shape, SI
ID: 388641
Weight: 1.23ct
Size: 9.6 x 6 mm
Clarity: SI
Content: 1 pc
Price: $ 78.97
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1.27ct Light Lemon Yellow Chrysoberyl Gemstones, Pear Shape, VVS

1.27ct Light Lemon Yellow Chrysoberyl, Pear Shape, VVS
ID: 366587
Weight: 1.27ct
Size: 8.5 x 6 mm
Clarity: VVS
Content: 1 pc
Price: $ 178.32
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55.03ct Coral Pink Rose Quartz Gemstones, Trillion, Transparent

55.03ct Coral Pink Rose Quartz, Trillion, Transparent
ID: 523053
Weight: 55.03ct
Size: 29.2 x 24.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 119.14
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1.96ct Warm Brown Tiger's Eye Gemstones, Marquise, Opaque

1.96ct Warm Brown Tiger's Eye, Marquise, Opaque
ID: 655525
Weight: 1.96ct
Size: 12 x 6 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 3.06
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83.59ct Multicolor Ruby-Zoisite Gemstones, Fancy, Opaque
Ruby-Zoisite Product Video (588862)

83.59ct Multicolor Ruby-Zoisite, Fancy, Opaque
ID: 588862
Weight: 83.59ct
Size: 55.2 x 35.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 283.87
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1.61ct Deep Purple Spinel Gemstones, Pear Shape, VS

1.61ct Deep Purple Spinel, Pear Shape, VS
ID: 382653
Weight: 1.61ct
Size: 9.3 x 6.3 mm
Clarity: VS
Content: 1 pc
Price: $ 159.08
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31.65ctw Multicolor Labradorite Gemstones, Oval, Translucent

31.65ctw Multicolor Labradorite, Oval, Translucent
ID: 618058
Weight: 31.65ct (total)
Size: 25 x 18 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 75.96
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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

Great experience. I can't wait to explore on the website further.

Posted By Kymmie in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic

Posted By Steve m. in February, 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 -> 10 star ratings

Great selection of gems at a reasonable price

Posted By Curt in July, 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
Source: Bizrate

Overall Rating -> 9 star ratings

Very easy to navigate with a great selection.

Posted By Bar181 in August, 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 -> 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 -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
Source: Bizrate
Enlarged Gemstone Image