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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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Multicolor Untreated Gemstones
Orange Untreated Gemstones
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4.42ct Gold Apatite Gemstones, Emerald Cut, VS
Apatite Product Video (390885)

4.42ct Gold Apatite, Emerald Cut, VS
ID: 390885
Weight: 4.42ct
Size: 10.4 x 9.3 mm
Clarity: VS
Content: 1 pc
Price: $ 237.94
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3.67ct Smoky Mother of Pearl Gemstones, Fancy, Opaque

3.67ct Smoky Mother of Pearl, Fancy, Opaque
ID: 474379
Weight: 3.67ct
Size: 19.4 x 12.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 10.18
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7.36ct Bubblegum Pink Rose Quartz Gemstones, Emerald Cut, Transparent

7.36ct Bubblegum Pink Rose Quartz, Emerald Cut, Transparent
ID: 414944
Weight: 7.36ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 40.48
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6.30ct Very Light Royal Purple Pink Kunzite Gemstones, Pear Shape, VS

6.30ct Very Light Royal Purple Pink Kunzite, Pear Shape, VS
ID: 693425
Weight: 6.30ct
Size: 12 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 174.07
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0.15ctw I Diamond Gemstones, Round, VVS-VS

0.15ctw I Diamond, Round, VVS-VS
ID: 565126
Weight: 0.15ct (total)
Size: 2.7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 328.36
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3.29ctw Warm Yellow Golden Beryl Gemstones, Oval, VVS-VS

3.29ctw Warm Yellow Golden Beryl, Oval, VVS-VS
ID: 574760
Weight: 3.29ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 86.86
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3.07ctw Multicolor Andalusite Gemstones, Round, VS-SI

3.07ctw Multicolor Andalusite, Round, VS-SI
ID: 310823
Weight: 3.07ct (total)
Size: 4 mm (calibrated)
Clarity: VS-SI
Content: 12 pcs
Price: $ 180.58
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28.61ctw Multicolor Fossil Coral Gemstones, Trillion, Opaque

28.61ctw Multicolor Fossil Coral, Trillion, Opaque
ID: 450089
Weight: 28.61ct (total)
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 75.53
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1.43ct Medium Purple Spinel Gemstones, Oval, VS-SI

1.43ct Medium Purple Spinel, Oval, VS-SI
ID: 349311
Weight: 1.43ct
Size: 7.5 x 5.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 184.04
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4.17ct Colorless Morganite Gemstones, Oval, Transparent

4.17ct Colorless Morganite, Oval, Transparent
ID: 472832
Weight: 4.17ct
Size: 14.3 x 10.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 57.73
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3.63ct Light Pink Tourmaline Gemstones, Emerald Cut, SI
Tourmaline Product Video (545337)

3.63ct Light Pink Tourmaline, Emerald Cut, SI
ID: 545337
Weight: 3.63ct
Size: 11.6 x 6.4 mm
Clarity: SI
Content: 1 pc
Price: $ 275.52
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5.39ct Greenish Blue Fluorite Gemstones, Pear Shape, Transparent

5.39ct Greenish Blue Fluorite, Pear Shape, Transparent
ID: 635824
Weight: 5.39ct
Size: 11.6 x 8.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 27.68
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11.83ct Violet Blue Chalcedony Gemstones, Pear Shape, Opaque

11.83ct Violet Blue Chalcedony, Pear Shape, Opaque
ID: 694200
Weight: 11.83ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 35.50
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9.50ct Warm Orange Spessartite Garnet Gemstones, Oval, Transparent
Spessartite Garnet Product Video (386669)

9.50ct Warm Orange Spessartite Garnet, Oval, Transparent
ID: 386669
Weight: 9.50ct
Size: 12.5 x 10.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 362.38
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3.85ctw Reddish Orange Hessonite Garnet Gemstones, Square, VS-SI

3.85ctw Reddish Orange Hessonite Garnet, Square, VS-SI
ID: 392905
Weight: 3.85ct (total)
Size: 6.7 x 6.6 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 84.70
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15.38ct Multicolor Pietersite Gemstones, Oval, Opaque
Pietersite Product Video (631666)

15.38ct Multicolor Pietersite, Oval, Opaque
ID: 631666
Weight: 15.38ct
Size: 24 x 17.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 69.95
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31.34ct Light Cinnamon Brown Moonstone Gemstones, Oval, Opaque

31.34ct Light Cinnamon Brown Moonstone, Oval, Opaque
ID: 359686
Weight: 31.34ct
Size: 20.2 x 16.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 68.95
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0.97ct Golden-Brown Color-Change Garnet Gemstones, Cushion, VS-SI

0.97ct Golden-Brown Color-Change Garnet, Cushion, VS-SI
ID: 329378
Weight: 0.97ct
Size: 6.8 x 4.2 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 103.72
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4.39ctw Reddish Pink Strawberry Quartz Gemstones, Round, Translucent

4.39ctw Reddish Pink Strawberry Quartz, Round, Translucent
ID: 609111
Weight: 4.39ct (total)
Size: 8.5 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 81.13
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27.28ctw Multicolor Fossil Coral Gemstones, Cushion, Opaque
Fossil Coral Product Video (514176)

27.28ctw Multicolor Fossil Coral, Cushion, Opaque
ID: 514176
Weight: 27.28ct (total)
Size: 17 x 12.9 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 59.41
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21.24ctw Multicolor Fossil Coral Gemstones, Pear Shape, Opaque

21.24ctw Multicolor Fossil Coral, Pear Shape, Opaque
ID: 514341
Weight: 21.24ct (total)
Size: 20.2 x 11 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 55.52
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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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6.98ct Bluish White Rainbow Moonstone Gemstones, Baguette, Transparent

6.98ct Bluish White Rainbow Moonstone, Baguette, Transparent
ID: 674106
Weight: 6.98ct
Size: 18.9 x 6.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 125.64
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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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28.55ct Multicolor Quartz With Marcasite Gemstones, Cushion, Transparent
Quartz With Marcasite Product Video (524011)

28.55ct Multicolor Quartz With Marcasite, Cushion, Transparent
ID: 524011
Weight: 28.55ct
Size: 21.2 x 18.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 226.12
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47.80ct Multicolor Rhodochrosite Gemstones, Oval, Opaque
Rhodochrosite Product Video (391975)

47.80ct Multicolor Rhodochrosite, Oval, Opaque
ID: 391975
Weight: 47.80ct
Size: 27 x 20 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 126.19
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25.54ct Medium Green Cat's Eye Opal Gemstones, Oval, Opaque

25.54ct 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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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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3.50ctw Fire Orange Hessonite Garnet Gemstones, Square, VS

3.50ctw Fire Orange Hessonite Garnet, Square, VS
ID: 392984
Weight: 3.50ct (total)
Size: 6.7 x 6.6 mm
Clarity: VS
Content: 2 pcs
Price: $ 92.40
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52.78ct Bubblegum Pink Rose Quartz Gemstones, Oval, Transparent
Rose Quartz Product Video (344385)

52.78ct Bubblegum Pink Rose Quartz, Oval, Transparent
ID: 344385
Weight: 52.78ct
Size: 25 x 21.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 94.06
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1.17ct Light Pink Spinel Gemstones, Cushion, VS

1.17ct Light Pink Spinel, Cushion, VS
ID: 679161
Weight: 1.17ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 90.09
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7.49ct Very Light Golden-Brown Rutile Quartz Gemstones, Round, Transparent

7.49ct Very Light Golden-Brown Rutile Quartz, Round, Transparent
ID: 403850
Weight: 7.49ct
Size: 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 39.55
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8.89ct Chocolate Brown Smoky Quartz Gemstones, Emerald Cut, VVS-VS

8.89ct Chocolate Brown Smoky Quartz, Emerald Cut, VVS-VS
ID: 394693
Weight: 8.89ct
Size: 13 x 13 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 58.68
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2.50ct Lively Green Peridot Gemstones, Cushion, VS-SI

2.50ct Lively Green Peridot, Cushion, VS-SI
ID: 334417
Weight: 2.50ct
Size: 8.9 x 7.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 99.00
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2.25ct Navy Blue Kyanite Gemstones, Oval, SI-I1
Kyanite Product Video (574776)

2.25ct Navy Blue Kyanite, Oval, SI-I1
ID: 574776
Weight: 2.25ct
Size: 9.4 x 6.2 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 49.50
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15.01ct Black with Blue Sparkle Nuummite Gemstones, Oval, Opaque

15.01ct Black with Blue Sparkle Nuummite, Oval, Opaque
ID: 630778
Weight: 15.01ct
Size: 19.7 x 11.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 79.43
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54.13ct Multicolor Agate Geode Gemstones, Fancy, Opaque
Agate Geode Product Video (391991)

54.13ct Multicolor Agate Geode, Fancy, Opaque
ID: 391991
Weight: 54.13ct
Size: 26.4 x 24 mm
Clarity: Opaque
Content: 1 pc
Price: $ 59.54
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5.74ct Light Mocha Smoky Quartz Gemstones, Emerald Cut, VVS

5.74ct Light Mocha Smoky Quartz, Emerald Cut, VVS
ID: 620034
Weight: 5.74ct
Size: 12 x 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 29.02
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74.99ct Multicolor Quartz With Marcasite Gemstones, Fancy, Transparent
Quartz With Marcasite Product Video (586134)

74.99ct Multicolor Quartz With Marcasite, Fancy, Transparent
ID: 586134
Weight: 74.99ct
Size: 42.7 x 24.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 494.94
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64.31ct Multicolor Jasper Gemstones, Pear Shape, Opaque

64.31ct Multicolor Jasper, Pear Shape, Opaque
ID: 486353
Weight: 64.31ct
Size: 30.6 x 32.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 65.36
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24.16ct Greyish White Howlite Gemstones, Cushion, Opaque

24.16ct Greyish White Howlite, Cushion, Opaque
ID: 645960
Weight: 24.16ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 13.63
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1.09ct Bright Green Tsavorite Garnet Gemstones, Pear Shape, VS-SI
Tsavorite Garnet Product Video (415387)

1.09ct Bright Green Tsavorite Garnet, Pear Shape, VS-SI
ID: 415387
Weight: 1.09ct
Size: 7.8 x 5.4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 863.28
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49.26ct Cool Green Amazonite Gemstones, Fancy, Opaque
Amazonite Product Video (484660)

49.26ct Cool Green Amazonite, Fancy, Opaque
ID: 484660
Weight: 49.26ct
Size: 38.9 x 22.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 47.29
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83.94ctw Dark Gray Hematite Gemstones, Round, Opaque

83.94ctw Dark Gray Hematite, Round, Opaque
ID: 491713
Weight: 83.94ct (total)
Size: 23 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 98.62
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4.97ct Medium-Light Brown Cat's Eye Scapolite Gemstones, Oval, Translucent

4.97ct Medium-Light Brown Cat's Eye Scapolite, Oval, Translucent
ID: 484127
Weight: 4.97ct
Size: 11.1 x 8.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 27.34
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1.50ct Medium Purple Spinel Gemstones, Cushion, VS

1.50ct Medium Purple Spinel, Cushion, VS
ID: 531017
Weight: 1.50ct
Size: 7.1 x 6 mm
Clarity: VS
Content: 1 pc
Price: $ 167.32
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2.47ct Medium Green Sphene Gemstones, Oval, VS-SI
Sphene Product Video (526850)

2.47ct Medium Green Sphene, Oval, VS-SI
ID: 526850
Weight: 2.47ct
Size: 8.8 x 7.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 149.44
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1.75ct Medium Green Sphene Gemstones, Oval, VS-SI
Sphene Product Video (467957)

1.75ct Medium Green Sphene, Oval, VS-SI
ID: 467957
Weight: 1.75ct
Size: 8 x 6.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 94.50
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47.89ct Medium Gray Hematite Gemstones, Oval, Opaque

47.89ct Medium Gray Hematite, Oval, Opaque
ID: 517069
Weight: 47.89ct
Size: 23.6 x 18.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 56.26
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16.89ct Grey Brown Moonstone Gemstones, Round, Translucent

16.89ct Grey Brown Moonstone, Round, Translucent
ID: 268772
Weight: 16.89ct
Size: 17 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 55.73
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20.00ct Multicolor Jasper Gemstones, Oval, Opaque

20.00ct Multicolor Jasper, Oval, Opaque
ID: 363367
Weight: 20.00ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 52.80
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3.19ct Medium Pink Tourmaline Gemstones, Emerald Cut, VS-SI
Tourmaline Product Video (544799)

3.19ct Medium Pink Tourmaline, Emerald Cut, VS-SI
ID: 544799
Weight: 3.19ct
Size: 12.1 x 5.8 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 242.12
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30.74ct Golden Brown Moonstone Gemstones, Oval, Translucent

30.74ct Golden Brown Moonstone, Oval, Translucent
ID: 401455
Weight: 30.74ct
Size: 25 x 18.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 60.86
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2.97ctw Medium Orange Hessonite Garnet Gemstones, Cushion, VS-SI
Hessonite Garnet Product Video (338676)

2.97ctw Medium Orange Hessonite Garnet, Cushion, VS-SI
ID: 338676
Weight: 2.97ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 135.59
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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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9.76ct Gingerbread Brown Smoky Quartz Gemstones, Fancy, VVS

9.76ct Gingerbread Brown Smoky Quartz, Fancy, VVS
ID: 601909
Weight: 9.76ct
Size: 16.2 x 14.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 47.41
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89.04ctw Bi-color Tourmaline Gemstones, Fancy, Translucent
Tourmaline Product Video (666919)

89.04ctw Bi-color Tourmaline, Fancy, Translucent
ID: 666919
Weight: 89.04ct (total)
Size: 40.8 x 20.3 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 1,335.60
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29.21ct Light Purplish Blue Chalcedony Gemstones, Cushion, Opaque

29.21ct Light Purplish Blue Chalcedony, Cushion, Opaque
ID: 694297
Weight: 29.21ct
Size: 33.6 x 18.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 73.03
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29.03ct Deep Violet Amethyst Gemstones, Round, VVS
Amethyst Product Video (692707)

29.03ct Deep Violet Amethyst, Round, VVS
ID: 692707
Weight: 29.03ct
Size: 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 203.21
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1.69ctw Multicolor Andalusite Gemstones, Oval, VS

1.69ctw Multicolor Andalusite, Oval, VS
ID: 390557
Weight: 1.69ct (total)
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 108.77
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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

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

Loved the price and the quality and the certification options which is the main reason why I buy. The guarantee is also a great reason to use gem select.

Posted By Sal in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I can pick and choose from large selection and find just what I need for .y projects, currently my cane.

Posted By Darkstar731 in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

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

love these guys been ordering since 2000 maybe

Posted By JHT in April, 2025
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Overall Rating -> 9 star ratings

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 2025
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Overall Rating -> 10 star ratings

I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

Posted By MVK in July, 2025
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Overall Rating -> 10 star ratings

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 2025
Source: Bizrate
Enlarged Gemstone Image