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

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

Discover loose untreated gemstones in our curated selection. Find unheated sapphires, untreated rubies, and virgin untreated stones, our collection highlights the beauty of nature’s finest treasures. Perfect for engagement rings, heirloom pieces, or collectors, our certified untreated gems and GIA-certified natural gems ensure authenticity and quality. Experience the allure of authentic untreated crystals and precious untreated gemstones today.
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Photos are of Actual Products for Sale
28.68ct Natural Medium Brown Moonstone, Round, Translucent
Moonstone Product Video (660339)

28.68ct Natural Medium Brown Moonstone, Round, Translucent
ID: 660339
Weight: 28.68ct
Size: 19 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 57.65
Item in Stock
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21.94ct Natural Violet Blue Chalcedony, Pear Shape, Opaque

21.94ct Natural Violet Blue Chalcedony, Pear Shape, Opaque
ID: 694301
Weight: 21.94ct
Size: 27 x 20 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 54.85
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0.81ct Natural Light Golden Yellow Color-Change Diaspore, Oval, VVS-VS

0.81ct Natural Light Golden Yellow Color-Change Diaspore, Oval, VVS-VS
ID: 393954
Weight: 0.81ct
Size: 7.2 x 4.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 33.61
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11.34ct Natural Light Coffee Brown Star Moonstone, Round, Translucent

11.34ct Natural Light Coffee Brown Star Moonstone, Round, Translucent
ID: 418948
Weight: 11.34ct
Size: 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 45.36
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12.80ct Natural Medium Pink Rose Quartz, Emerald Cut, Transparent

12.80ct Natural Medium Pink Rose Quartz, Emerald Cut, Transparent
ID: 395337
Weight: 12.80ct
Size: 14 x 14 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 70.40
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20.80ct Natural Pinkish Violet Amethyst, Emerald Cut, VVS
Amethyst Product Video (715401)

20.80ct Natural Pinkish Violet Amethyst, Emerald Cut, VVS
ID: 715401
Weight: 20.80ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 166.40
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49.00ct Natural Coral Pink Rose Quartz, Oval, Transparent

49.00ct Natural Coral Pink Rose Quartz, Oval, Transparent
ID: 344366
Weight: 49.00ct
Size: 27 x 20 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 72.77
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56.12ctw Natural Medium Grey Hematite, Baguette, Opaque

56.12ctw Natural Medium Grey Hematite, Baguette, Opaque
ID: 491663
Weight: 56.12ct (total)
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 54.95
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8.17ct Natural Earthy Brown Cat's Eye Opal, Oval, Translucent

8.17ct Natural Earthy Brown Cat's Eye Opal, Oval, Translucent
ID: 494033
Weight: 8.17ct
Size: 13.8 x 12.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 26.96
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25.96ct Natural Multicolor Pietersite, Oval, Opaque

25.96ct Natural Multicolor Pietersite, Oval, Opaque
ID: 348362
Weight: 25.96ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 114.22
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1.11ct Natural Medium Pink Strawberry Quartz, Round, Translucent

1.11ct Natural Medium Pink Strawberry Quartz, Round, Translucent
ID: 533170
Weight: avg. 1.11 ct / each
Size: 7 mm (calibrated)
Clarity: Translucent
Price: $ 8.72
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1.52ct Natural Light Pink Morganite, Round, VS
Morganite Product Video (587280)

1.52ct Natural Light Pink Morganite, Round, VS
ID: 587280
Weight: 1.52ct
Size: 7.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 117.04
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1.19ct Natural Bright Lemon Yellow Sphene, Pear Shape, VS-SI

1.19ct Natural Bright Lemon Yellow Sphene, Pear Shape, VS-SI
ID: 390451
Weight: 1.19ct
Size: 9 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 49.63
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36.10ct Natural Gingerbread Brown Tiger's Eye, Round, Opaque

36.10ct Natural Gingerbread Brown Tiger's Eye, Round, Opaque
ID: 329090
Weight: 36.10ct
Size: 20 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 50.83
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33.78ct Natural Multicolor Pietersite, Oval, Opaque

33.78ct Natural Multicolor Pietersite, Oval, Opaque
ID: 447882
Weight: 33.78ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 111.47
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4.18ct Natural Medium Green Prehnite, Oval, Transparent

4.18ct Natural Medium Green Prehnite, Oval, Transparent
ID: 367970
Weight: 4.18ct
Size: 9.9 x 9.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 22.80
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6.73ct Natural Medium Orange Star Moonstone, Oval, Translucent

6.73ct Natural Medium Orange Star Moonstone, Oval, Translucent
ID: 416969
Weight: 6.73ct
Size: 10.8 x 9.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 29.61
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3.26ct Natural Intense Pink Tourmaline, Emerald Cut, SI
Tourmaline Product Video (544803)

3.26ct Natural Intense Pink Tourmaline, Emerald Cut, SI
ID: 544803
Weight: 3.26ct
Size: 9.8 x 6.7 mm
Clarity: SI
Content: 1 pc
Price: $ 247.43
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3.07ct Natural Umber Brown Cat's Eye Scapolite, Round, Translucent

3.07ct Natural Umber Brown Cat's Eye Scapolite, Round, Translucent
ID: 497469
Weight: 3.07ct
Size: 8.5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 15.35
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52.11ct Natural Multicolor Jasper, Oval, Translucent
Jasper Product Video (433014)

52.11ct Natural Multicolor Jasper, Oval, Translucent
ID: 433014
Weight: 52.11ct
Size: 37.9 x 28.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 62.53
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2.81ctw Natural Peach Orange Sunstone, Oval, Translucent

2.81ctw Natural Peach Orange Sunstone, Oval, Translucent
ID: 570353
Weight: 2.81ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 17.25
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6.01ct Natural Light Blue Aquamarine, Emerald Cut, VS
Aquamarine Product Video (412445)

6.01ct Natural Light Blue Aquamarine, Emerald Cut, VS
ID: 412445
Weight: 6.01ct
Size: 12.6 x 8.2 mm
Clarity: VS
Content: 1 pc
Price: $ 1,150.31
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18.83ct Natural Bright Blue Color-Change Fluorite, Oval, VS
Color-Change Fluorite Product Video (445414)

18.83ct Natural Bright Blue Color-Change Fluorite, Oval, VS
ID: 445414
Weight: 18.83ct
Size: 20 x 15 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 519.49
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3.07ctw Natural Multicolor Andalusite, Round, VS-SI

3.07ctw Natural Multicolor Andalusite, Round, VS-SI
ID: 310823
Weight: 3.07ct (total)
Size: 4 mm (calibrated)
Clarity: VS-SI
Content: 12 pcs
Price: $ 150.48
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42.52ct Natural Black with Blue Sparkle Nuummite, Oval, Opaque
Nuummite Product Video (521201)

42.52ct Natural Black with Blue Sparkle Nuummite, Oval, Opaque
ID: 521201
Weight: 42.52ct
Size: 27.7 x 25.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 178.67
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0.33ct Natural Golden Brown Diamond, Round, SI
Diamond Product Video (564636)

0.33ct Natural Golden Brown Diamond, Round, SI
ID: 564636
Weight: 0.33ct
Size: 4.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 549.88
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25.97ct Natural Bluish White Rainbow Moonstone, Oval, Translucent
Rainbow Moonstone Product Video (674102)

25.97ct Natural Bluish White Rainbow Moonstone, Oval, Translucent
ID: 674102
Weight: 25.97ct
Size: 24.1 x 17.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 389.55
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3.36ct Natural Brownish Orange Sphalerite, Emerald Cut, SI
Sphalerite Product Video (690772)

3.36ct Natural Brownish Orange Sphalerite, Emerald Cut, SI
ID: 690772
Weight: 3.36ct
Size: 9.3 x 6.5 mm
Clarity: SI
Content: 1 pc
Price: $ 168.00
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6.07ct Natural Multicolor Coral, Oval, Translucent

6.07ct Natural Multicolor Coral, Oval, Translucent
ID: 565409
Weight: 6.07ct
Size: 15.2 x 10.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 20.03
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17.53ct Natural Medium Red Strawberry Quartz, Oval, Translucent

17.53ct Natural Medium Red Strawberry Quartz, Oval, Translucent
ID: 472285
Weight: 17.53ct
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 134.98
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2.72ct Natural Very Deep Blue Kyanite, Round, SI

2.72ct Natural Very Deep Blue Kyanite, Round, SI
ID: 602284
Weight: 2.72ct
Size: 8.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 74.80
Item in Stock
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9.62ctw Natural Medium Pink Strawberry Quartz, Oval, Translucent
Strawberry Quartz Product Video (608860)

9.62ctw Natural Medium Pink Strawberry Quartz, Oval, Translucent
ID: 608860
Weight: 9.62ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 148.15
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55.11ct Natural Medium Violet Charoite, Fancy, Opaque
Charoite Product Video (567270)

55.11ct Natural Medium Violet Charoite, Fancy, Opaque
ID: 567270
Weight: 55.11ct
Size: 34.5 x 31 mm
Clarity: Opaque
Content: 1 pc
Price: $ 103.66
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15.88ct Natural Light Cherry Pink Kunzite, Pear Shape, VVS-VS
Kunzite Product Video (427407)

15.88ct Natural Light Cherry Pink Kunzite, Pear Shape, VVS-VS
ID: 427407
Weight: 15.88ct
Size: 18.5 x 12.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 314.42
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37.60ct Natural Multicolor Spectrolite, Cushion, Opaque
Spectrolite Product Video (513071)

37.60ct Natural Multicolor Spectrolite, Cushion, Opaque
ID: 513071
Weight: 37.60ct
Size: 45 x 24 mm
Clarity: Opaque
Content: 1 pc
Price: $ 135.25
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10.36ct Natural Bluish Green Bloodstone, Trillion, Opaque

10.36ct Natural Bluish Green Bloodstone, Trillion, Opaque
ID: 408647
Weight: 10.36ct
Size: 14 x 14 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 39.89
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38.36ct Natural Multicolor Jasper, Marquise, Opaque

38.36ct Natural Multicolor Jasper, Marquise, Opaque
ID: 447394
Weight: 38.36ct
Size: 50.6 x 17.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 46.03
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28.92ct Natural Multicolor Quartz With Marcasite, Marquise, Transparent
Quartz With Marcasite Product Video (618765)

28.92ct Natural Multicolor Quartz With Marcasite, Marquise, Transparent
ID: 618765
Weight: 28.92ct
Size: 29.8 x 14.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 159.06
Item in Stock
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1.11ct Natural Cyber Yellow Sphene, Pear Shape, VS-SI

1.11ct Natural Cyber Yellow Sphene, Pear Shape, VS-SI
ID: 346386
Weight: 1.11ct
Size: 8 x 5.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 36.63
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4.06ct Natural Ginger Orange Sunstone, Round, Translucent

4.06ct Natural Ginger Orange Sunstone, Round, Translucent
ID: 511218
Weight: 4.06ct
Size: 11 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 44.66
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1.15ct Natural Lemon Yellow Chrysoberyl, Pear Shape, VVS

1.15ct Natural Lemon Yellow Chrysoberyl, Pear Shape, VVS
ID: 366580
Weight: 1.15ct
Size: 8.6 x 5.7 mm
Clarity: VVS
Content: 1 pc
Price: $ 134.56
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5.85ct Natural Dark Chocolate Brown Cat's Eye Scapolite, Oval, Translucent

5.85ct Natural Dark Chocolate Brown Cat's Eye Scapolite, Oval, Translucent
ID: 470307
Weight: 5.85ct
Size: 11.8 x 9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 29.25
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37.10ctw Natural Multicolor Fossil Coral, Cushion, Opaque

37.10ctw Natural Multicolor Fossil Coral, Cushion, Opaque
ID: 510934
Weight: 37.10ct (total)
Size: 18.4 x 15 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 66.52
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17.12ct Natural Purplish Cherry Red Strawberry Quartz, Oval, Translucent

17.12ct Natural Purplish Cherry Red Strawberry Quartz, Oval, Translucent
ID: 472286
Weight: 17.12ct
Size: 18.2 x 14.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 131.82
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8.84ct Natural Bi-color Ametrine, Emerald Cut, VVS-VS
Ametrine Product Video (670187)

8.84ct Natural Bi-color Ametrine, Emerald Cut, VVS-VS
ID: 670187
Weight: 8.84ct
Size: 13 x 11 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 127.21
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0.30ct Natural Light Lively Green Peridot, Emerald Cut, VVS-VS
Peridot Product Video (527301)

0.30ct Natural Light Lively Green Peridot, Emerald Cut, VVS-VS
ID: 527301
Weight: avg. 0.30 ct / each
Size: 5 x 3 mm (calibrated)
Clarity: VVS-VS
Price: $ 4.89
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10.19ctw Natural Multicolor Ruby in Fuchsite, Marquise, Translucent
Ruby in Fuchsite Product Video (385555)

10.19ctw Natural Multicolor Ruby in Fuchsite, Marquise, Translucent
ID: 385555
Weight: 10.19ct (total)
Size: 20.2 x 9.9 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 75.44
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77.96ct Natural Multicolor Jasper, Oval, Opaque
Jasper Product Video (693326)

77.96ct Natural Multicolor Jasper, Oval, Opaque
ID: 693326
Weight: 77.96ct
Size: 45.7 x 25.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 45.22
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1.64ct Natural Purple-Pink Spinel, Cushion, VS

1.64ct Natural Purple-Pink Spinel, Cushion, VS
ID: 530665
Weight: 1.64ct
Size: 7.3 x 5.8 mm
Clarity: VS
Content: 1 pc
Price: $ 117.26
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25.54ct Natural Medium Green Cat's Eye Opal, Oval, Opaque

25.54ct Natural Medium Green Cat's Eye Opal, Oval, Opaque
ID: 669622
Weight: 25.54ct
Size: 23.4 x 15.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 63.85
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12.91ct Natural Warm Brown Smoky Quartz, Emerald Cut, VVS

12.91ct Natural Warm Brown Smoky Quartz, Emerald Cut, VVS
ID: 599325
Weight: 12.91ct
Size: 16 x 16 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 35.51
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7.51ct Natural Multicolor Coral, Round, Translucent
Coral Product Video (517241)

7.51ct Natural Multicolor Coral, Round, Translucent
ID: 517241
Weight: 7.51ct
Size: 14 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 23.87
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34.16ct Natural Multicolor Boulder Opal, Oval, Opaque
Boulder Opal Product Video (410119)

34.16ct Natural Multicolor Boulder Opal, Oval, Opaque
ID: 410119
Weight: 34.16ct
Size: 23.4 x 19.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 263.42
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1.33ctw Natural Light Forest Green Demantoid Garnet, Oval, VS
Demantoid Garnet Product Video (458407)

1.33ctw Natural Light Forest Green Demantoid Garnet, Oval, VS
ID: 458407
Weight: 1.33ct (total)
Size: 4.4 x 3.5 mm
Clarity: VS
Content: 4 pcs
Price: $ 146.30
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52.74ct Natural Multicolor Jasper, Cushion, Opaque

52.74ct Natural Multicolor Jasper, Cushion, Opaque
ID: 363842
Weight: 52.74ct
Size: 36.5 x 25.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 36.92
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9.38ct Natural Light Greenish Blue Larimar, Pear Shape, Opaque

9.38ct Natural Light Greenish Blue Larimar, Pear Shape, Opaque
ID: 673941
Weight: 9.38ct
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 112.46
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2.03ctw Natural Warm Green Demantoid Garnet, Oval, VS
Demantoid Garnet Product Video (461509)

2.03ctw Natural Warm Green Demantoid Garnet, Oval, VS
ID: 461509
Weight: 2.03ct (total)
Size: 4.8 x 4.1 mm
Clarity: VS
Content: 4 pcs
Price: $ 223.30
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2.65ct Natural Medium Yellow Sphene, Oval, VS-SI
Sphene Product Video (526855)

2.65ct Natural Medium Yellow Sphene, Oval, VS-SI
ID: 526855
Weight: 2.65ct
Size: 8.8 x 7.7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 160.33
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12.31ct Natural Light Pink Kunzite, Emerald Cut, VS
Kunzite Product Video (695440)

12.31ct Natural Light Pink Kunzite, Emerald Cut, VS
ID: 695440
Weight: 12.31ct
Size: 13 x 13 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 307.75
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57.58ct Natural Multicolor Jasper, Oval, Opaque

57.58ct Natural Multicolor Jasper, Oval, Opaque
ID: 522212
Weight: 57.58ct
Size: 44.5 x 28.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 48.77
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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 -> 8 star ratings

Loved the lot buy options

Posted By BDG in October, 2024
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Overall Rating -> 10 star ratings

I had a great experience. The gems are authentic and as described. Will be purchasing these items in the future. Thank you

Posted By Suka in June, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

The selection is fantastic, both breadth of stones and selection within type. Check out was very easy.

Posted By LoriV in June, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

there are a large number of gems to choose from i have ordered before and these objects are precious to me that my light reflect in them and fills the stones they are there when i need to reflect on life

Posted By Kickbass.2 in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

First time so this is an experiment! Shopping is so fun on this site, though!

Posted By Gem Delight in March, 2025
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Overall Rating -> 10 star ratings

Everything went well, the payment options are easily declined but, but once sorted out, everything is smooth. I have bought from GemSelect before and am consistently satisfied with them.

Posted By Gabe in August, 2024
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Overall Rating -> 10 star ratings

I love the gems and your website, every time I want to buy I usually spend between 6 and 8 hours on your website.

Posted By Bryan De David in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good shopping experience. Website is relatively easy to use. Prices are good.

Posted By Bleep in August, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

Good quality fairly priced.

Posted By CassiusGrey in May, 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.

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