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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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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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8.46ct Clear and Gold-Bronze Rutile Quartz Gemstones, Round, Transparent/Translucent
Rutile Quartz Product Video (346764)

8.46ct Clear and Gold-Bronze Rutile Quartz, Round, Transparent/Translucent
ID: 346764
Weight: 8.46ct
Size: 13 mm (calibrated)
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 46.53
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1.46ct Medium-Dark Purple Spinel Gemstones, Cushion, VS

1.46ct Medium-Dark Purple Spinel, Cushion, VS
ID: 524594
Weight: 1.46ct
Size: 6.3 x 6 mm
Clarity: VS
Content: 1 pc
Price: $ 134.90
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121.07ct Multicolor Chrysocolla Gemstones, Trillion, Opaque
Chrysocolla Product Video (658616)

121.07ct Multicolor Chrysocolla, Trillion, Opaque
ID: 658616
Weight: 121.07ct
Size: 45.1 x 40.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 248.44
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7.96ct Medium-Dark Orange Star Moonstone Gemstones, Oval, Translucent

7.96ct Medium-Dark Orange Star Moonstone, Oval, Translucent
ID: 416872
Weight: 7.96ct
Size: 16.6 x 8.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 35.02
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35.09ct Multicolor Quartz With Marcasite Gemstones, Oval, Transparent
Quartz With Marcasite Product Video (521447)

35.09ct Multicolor Quartz With Marcasite, Oval, Transparent
ID: 521447
Weight: 35.09ct
Size: 28.7 x 21.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 277.91
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7.51ct Multicolor Coral Gemstones, Round, Translucent
Coral Product Video (517241)

7.51ct Multicolor Coral, Round, Translucent
ID: 517241
Weight: 7.51ct
Size: 14 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 28.64
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81.18ct Medium Purplish Violet Amethyst Gemstones, Oval, VVS-VS
Amethyst Product Video (639274)

81.18ct Medium Purplish Violet Amethyst, Oval, VVS-VS
ID: 639274
Weight: 81.18ct
Size: 27.8 x 25.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 681.91
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52.12ct Multicolor Jasper Gemstones, Fancy, Opaque

52.12ct Multicolor Jasper, Fancy, Opaque
ID: 486356
Weight: 52.12ct
Size: 43.9 x 27.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 52.97
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5.95ct Olive Green Apatite Gemstones, Emerald Cut, VS
Apatite Product Video (399658)

5.95ct Olive Green Apatite, Emerald Cut, VS
ID: 399658
Weight: 5.95ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 376.20
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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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37.98ct Multicolor Opal Gemstones, Pear Shape, Opaque
Opal Product Video (667934)

37.98ct Multicolor Opal, Pear Shape, Opaque
ID: 667934
Weight: 37.98ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 113.94
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29.76ct Multicolor Obsidian Gemstones, Oval, Opaque

29.76ct Multicolor Obsidian, Oval, Opaque
ID: 523588
Weight: 29.76ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 30.25
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0.90ct Mellow Yellow Color-Change Diaspore Gemstones, Emerald Cut, VVS-VS

0.90ct Mellow Yellow Color-Change Diaspore, Emerald Cut, VVS-VS
ID: 440033
Weight: 0.90ct
Size: 7 x 4.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 33.26
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9.42ct Multicolor Quartz With Marcasite Gemstones, Pear Shape, Transparent

9.42ct Multicolor Quartz With Marcasite, Pear Shape, Transparent
ID: 577072
Weight: 9.42ct
Size: 16.4 x 12.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 72.61
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2.64ct Medium Brown Color-Change Garnet Gemstones, Oval, VS
Color-Change Garnet Product Video (419786)

2.64ct Medium Brown Color-Change Garnet, Oval, VS
ID: 419786
Weight: 2.64ct
Size: 5.8 x 9.4 mm
Clarity: VS
Content: 1 pc
Price: $ 313.63
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11.21ct Medium Pink Morganite Gemstones, Oval, Translucent

11.21ct Medium Pink Morganite, Oval, Translucent
ID: 595010
Weight: 11.21ct
Size: 17.5 x 12.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 147.97
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1.37ct Medium Orange Hessonite Garnet Gemstones, Round, VS-SI

1.37ct Medium Orange Hessonite Garnet, Round, VS-SI
ID: 563529
Weight: 1.37ct
Size: 6.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 30.74
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95.38ct Medium Purplish Violet Amethyst Gemstones, Cushion, VS
Amethyst Product Video (638587)

95.38ct Medium Purplish Violet Amethyst, Cushion, VS
ID: 638587
Weight: 95.38ct
Size: 28.7 x 25.7 mm
Clarity: VS
Content: 1 pc
Price: $ 667.66
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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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14.76ct Dijon Yellow Apatite Gemstones, Oval, VS
Apatite Product Video (400909)

14.76ct Dijon Yellow Apatite, Oval, VS
ID: 400909
Weight: 14.76ct
Size: 16.5 x 13.5 mm
Clarity: VS
Content: 1 pc
Price: $ 1,558.66
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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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13.54ctw Black Spinel Gemstones, Round, Opaque

13.54ctw Black Spinel, Round, Opaque
ID: 438379
Weight: 13.54ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 53.62
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29.59ct Multicolor Quartz With Marcasite Gemstones, Baguette, Transparent

29.59ct Multicolor Quartz With Marcasite, Baguette, Transparent
ID: 586522
Weight: 29.59ct
Size: 28.1 x 14.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 195.30
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24.46ct Black with Gold Sheen Obsidian Gemstones, Fancy, Opaque

24.46ct Black with Gold Sheen Obsidian, Fancy, Opaque
ID: 645315
Weight: 24.46ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 14.68
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13.00ct Multicolor Opal Gemstones, Pear Shape, Opaque

13.00ct Multicolor Opal, Pear Shape, Opaque
ID: 675212
Weight: 13.00ct
Size: 19.4 x 13.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 33.54
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12.36ct Medium-Light Pink Morganite Gemstones, Trillion, Translucent
Morganite Product Video (594889)

12.36ct Medium-Light Pink Morganite, Trillion, Translucent
ID: 594889
Weight: 12.36ct
Size: 15 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 135.96
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4.00ct Pale Pear Green Prehnite Gemstones, Oval, Transparent/Translucent

4.00ct Pale Pear Green Prehnite, Oval, Transparent/Translucent
ID: 376648
Weight: 4.00ct
Size: 10.4 x 7.7 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 36.96
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2.39ctw Light Golden-Yellow Golden Beryl Gemstones, Oval, VS

2.39ctw Light Golden-Yellow Golden Beryl, Oval, VS
ID: 609088
Weight: 2.39ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 78.88
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1.13ct Electric Purple Sapphire Gemstones, Pear Shape, VVS
Sapphire Product Video (448563)

1.13ct Electric Purple Sapphire, Pear Shape, VVS
ID: 448563
Weight: 1.13ct
Size: 7.9 x 5.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 544.66
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43.68ct Multicolor Tiger's Eye Matrix Gemstones, Oval, Opaque

43.68ct Multicolor Tiger's Eye Matrix, Oval, Opaque
ID: 391712
Weight: 43.68ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 57.66
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5.48ct Reddish Orange Spessartite Garnet Gemstones, Oval, Translucent
Spessartite Garnet Product Video (424330)

5.48ct Reddish Orange Spessartite Garnet, Oval, Translucent
ID: 424330
Weight: 5.48ct
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 171.24
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11.09ct Light Purple Pink Kunzite Gemstones, Trillion, VS
Kunzite Product Video (409216)

11.09ct Light Purple Pink Kunzite, Trillion, VS
ID: 409216
Weight: 11.09ct
Size: 16.7 x 13 mm
Clarity: VS
Content: 1 pc
Price: $ 377.39
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6.17ct Multicolor Quartz With Marcasite Gemstones, Pear Shape, Transparent
Quartz With Marcasite Product Video (586705)

6.17ct Multicolor Quartz With Marcasite, Pear Shape, Transparent
ID: 586705
Weight: 6.17ct
Size: 15.4 x 13.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 407.48
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50.61ct Light Greenish Blue Larimar Gemstones, Fancy, Opaque
Larimar Product Video (492449)

50.61ct Light Greenish Blue Larimar, Fancy, Opaque
ID: 492449
Weight: 50.61ct
Size: 30.1 x 26 mm
Clarity: Opaque
Content: 1 pc
Price: $ 601.28
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1.81ct Champagne Diamond Gemstones, Emerald Cut, SI
Diamond Product Video (382053)

1.81ct Champagne Diamond, Emerald Cut, SI
ID: 382053
Weight: 1.81ct
Size: 6.4 x 6.1 mm
Clarity: SI
Content: 1 pc
Price: $ 4,630.51
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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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3.89ctw Medium Orange Zircon Gemstones, Round, VS
Zircon Product Video (442155)

3.89ctw Medium Orange Zircon, Round, VS
ID: 442155
Weight: 3.89ct (total)
Size: 7 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 85.58
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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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32.95ct Multicolor Quartz With Marcasite Gemstones, Pear Shape, Transparent
Quartz With Marcasite Product Video (521453)

32.95ct Multicolor Quartz With Marcasite, Pear Shape, Transparent
ID: 521453
Weight: 32.95ct
Size: 34.4 x 17.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 260.96
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3.27ctw Greenish Yellow Sillimanite Gemstones, Oval, VVS-VS
Sillimanite Product Video (411628)

3.27ctw Greenish Yellow Sillimanite, Oval, VVS-VS
ID: 411628
Weight: 3.27ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 151.08
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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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17.12ct Purplish Cherry Red Strawberry Quartz Gemstones, Oval, Translucent

17.12ct 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: $ 158.18
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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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0.31ct Eggplant Violet Iolite Gemstones, Emerald Cut, VS

0.31ct Eggplant Violet Iolite, Emerald Cut, VS
ID: 640471
Weight: 0.31ct
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 12.40
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1.63ct Light Pink Morganite Gemstones, Round, VS

1.63ct Light Pink Morganite, Round, VS
ID: 587289
Weight: 1.63ct
Size: 7.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 150.61
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0.61ct Medium Green Demantoid Garnet Gemstones, Oval, VS
Demantoid Garnet Product Video (278042)

0.61ct Medium Green Demantoid Garnet, Oval, VS
ID: 278042
Weight: 0.61ct
Size: 6 x 4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 167.75
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6.73ct Medium Orange Star Moonstone Gemstones, Oval, Translucent

6.73ct Medium Orange Star Moonstone, Oval, Translucent
ID: 416969
Weight: 6.73ct
Size: 10.8 x 9.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 35.53
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2.03ctw Warm Green Demantoid Garnet Gemstones, Oval, VS
Demantoid Garnet Product Video (461509)

2.03ctw 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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29.74ct Brown Moonstone Gemstones, Oval, Opaque

29.74ct Brown Moonstone, Oval, Opaque
ID: 359778
Weight: 29.74ct
Size: 22 x 16.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 78.52
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4.13ct Nude Moonstone Gemstones, Flower Cut, Translucent

4.13ct Nude Moonstone, Flower Cut, Translucent
ID: 485155
Weight: 4.13ct
Size: 13 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 21.80
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2.83ct Dark Pink Tourmaline Gemstones, Emerald Cut, SI

2.83ct Dark Pink Tourmaline, Emerald Cut, SI
ID: 545007
Weight: 2.83ct
Size: 8.9 x 6.3 mm
Clarity: SI
Content: 1 pc
Price: $ 214.80
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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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8.89ct Medium Green Blue Grandidierite Gemstones, Oval, SI-I1
Grandidierite Product Video (568863)

8.89ct Medium Green Blue Grandidierite, Oval, SI-I1
ID: 568863
Weight: 8.89ct
Size: 14 x 12 mm (calibrated)
Clarity: SI-I1
Content: 1 pc
Price: $ 481.13
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9.00ct Brownish Yellow Apatite Gemstones, Oval, VS
Apatite Product Video (407297)

9.00ct Brownish Yellow Apatite, Oval, VS
ID: 407297
Weight: 9.00ct
Size: 16.4 x 11.1 mm
Clarity: VS
Content: 1 pc
Price: $ 492.66
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33.78ct Multicolor Pietersite Gemstones, Oval, Opaque

33.78ct Multicolor Pietersite, Oval, Opaque
ID: 447882
Weight: 33.78ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 133.76
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11.13ct Very Light Golden-Brown Rutile Quartz Gemstones, Oval, Transparent

11.13ct Very Light Golden-Brown Rutile Quartz, Oval, Transparent
ID: 402478
Weight: 11.13ct
Size: 21.8 x 12 mm
Clarity: Transparent
Content: 1 pc
Price: $ 47.16
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14.98ct Greenish Blue Grandidierite Gemstones, Oval, SI-I1
Grandidierite Product Video (568868)

14.98ct Greenish Blue Grandidierite, Oval, SI-I1
ID: 568868
Weight: 14.98ct
Size: 17.5 x 14.6 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 810.72
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0.82ct Lively Green Tsavorite Garnet Gemstones, Pear Shape, VS-SI
Tsavorite Garnet Product Video (715307)

0.82ct Lively Green Tsavorite Garnet, Pear Shape, VS-SI
ID: 715307
Weight: 0.82ct
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 328.00
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34.44ct Multicolor Tiger's Eye Matrix Gemstones, Trillion, Opaque

34.44ct Multicolor Tiger's Eye Matrix, Trillion, Opaque
ID: 696120
Weight: 34.44ct
Size: 36.2 x 25 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.63
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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

Enjoyed shopping.

Posted By Chris in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.

Posted By JD in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Was a good experience.

Posted By Tim in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found what I was looking for...had to look up millimeters to inches. It would be nice to see something, like a quarter, in the pix to show relative size. I plan on buy loose gemstones for every month in the calendar

Posted By TheP in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love, and have always loved, your website.

Posted By Aberabic 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

All good

Posted By DouscheGift in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I've made several purchases through GemSelect in the past, although not within the last six months. Their gems are always beautiful and I have never had an issue with their prices or their stones. Even when I'm not buying, I love scrolling through their website, which is very user friendly. I especially appreciate being able to change the listing order to your own liking, such as most to least expensive, largest to smallest, etc. As with most online orders, however, I think the shipping charges are not commensurate with the actual weight of the items shipped.

Posted By DrLHS in November, 2024
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