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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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Orange Untreated Gemstones
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1.15ct Lemon Yellow Chrysoberyl Gemstones, Pear Shape, VVS

1.15ct Lemon Yellow Chrysoberyl, Pear Shape, VVS
ID: 366580
Weight: 1.15ct
Size: 8.6 x 5.7 mm
Clarity: VVS
Content: 1 pc
Price: $ 161.47
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42.52ct Black with Blue Sparkle Nuummite Gemstones, Oval, Opaque
Nuummite Product Video (521201)

42.52ct 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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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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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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20.18ct Very Light Golden-Brown Rutile Quartz Gemstones, Pear Shape, Transparent
Rutile Quartz Product Video (326518)

20.18ct Very Light Golden-Brown Rutile Quartz, Pear Shape, Transparent
ID: 326518
Weight: 20.18ct
Size: 23.7 x 14 mm
Clarity: Transparent
Content: 1 pc
Price: $ 66.60
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23.80ct Fire Orange Spessartite Garnet Gemstones, Oval, SI
Spessartite Garnet Product Video (487522)

23.80ct Fire Orange Spessartite Garnet, Oval, SI
ID: 487522
Weight: 23.80ct
Size: 10 x 13.7 mm
Clarity: SI
Content: 1 pc
Price: $ 1,256.64
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1.19ct Bright Lemon Yellow Sphene Gemstones, Pear Shape, VS-SI

1.19ct 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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57.02ct Multicolor Amethyst Geode Slice Gemstones, Fancy, Transparent
Amethyst Geode Slice Product Video (684869)

57.02ct Multicolor Amethyst Geode Slice, Fancy, Transparent
ID: 684869
Weight: 57.02ct
Size: 34.5 x 27.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 73.21
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1.70ct Cognac Diamond Gemstones, Round, SI
Diamond Product Video (382092)

1.70ct Cognac Diamond, Round, SI
ID: 382092
Weight: 1.70ct
Size: 7.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 4,784.02
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19.53ct Multicolor Rainbow Pyrite Gemstones, Oval, Opaque

19.53ct Multicolor Rainbow Pyrite, Oval, Opaque
ID: 645982
Weight: 19.53ct
Size: 23.8 x 17.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 60.94
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1.37ct Very Light Yellow Color-Change Diaspore Gemstones, Cushion, VS

1.37ct Very Light Yellow Color-Change Diaspore, Cushion, VS
ID: 511703
Weight: 1.37ct
Size: 8.1 x 5.2 mm
Clarity: VS
Content: 1 pc
Price: $ 81.38
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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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25.47ctw Multicolor Pietersite Gemstones, Pear Shape, Opaque
Pietersite Product Video (601393)

25.47ctw Multicolor Pietersite, Pear Shape, Opaque
ID: 601393
Weight: 25.47ct (total)
Size: 32.9 x 14.6 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 135.48
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12.25ct Deep Green Tourmaline Gemstones, Oval, VVS-VS
Tourmaline Product Video (416463)

12.25ct Deep Green Tourmaline, Oval, VVS-VS
ID: 416463
Weight: 12.25ct
Size: 15.7 x 12.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 2,450.00
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0.74ct Hickory Brown Color-Change Garnet Gemstones, Oval, VS

0.74ct Hickory Brown Color-Change Garnet, Oval, VS
ID: 218146
Weight: 0.74ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 97.68
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8.17ct Earthy Brown Cat's Eye Opal Gemstones, Oval, Translucent

8.17ct 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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13.08ct Light Cherry Pink Rose Quartz Gemstones, Emerald Cut, Transparent

13.08ct Light Cherry Pink Rose Quartz, Emerald Cut, Transparent
ID: 397516
Weight: 13.08ct
Size: 14 x 14 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 86.33
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9.05ct Bi-color Ametrine Gemstones, Emerald Cut, VVS-VS
Ametrine Product Video (670191)

9.05ct Bi-color Ametrine, Emerald Cut, VVS-VS
ID: 670191
Weight: 9.05ct
Size: 12.6 x 11.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 130.23
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43.96ct Multicolor Coral Gemstones, Oval, Opaque

43.96ct Multicolor Coral, Oval, Opaque
ID: 491463
Weight: 43.96ct
Size: 36.4 x 24.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 77.76
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11.74ct Green-Blue Grandidierite Gemstones, Oval, Translucent
Grandidierite Product Video (470664)

11.74ct Green-Blue Grandidierite, Oval, Translucent
ID: 470664
Weight: 11.74ct
Size: 14 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 3,099.36
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56.33ct Multicolor Rhodochrosite Gemstones, Pear Shape, Translucent
Rhodochrosite Product Video (548707)

56.33ct Multicolor Rhodochrosite, Pear Shape, Translucent
ID: 548707
Weight: 56.33ct
Size: 37.5 x 23.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 89.23
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33.71ct Multicolor Boulder Opal Gemstones, Fancy, Opaque
Boulder Opal Product Video (523722)

33.71ct Multicolor Boulder Opal, Fancy, Opaque
ID: 523722
Weight: 33.71ct
Size: 32.6 x 22.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 222.49
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28.58ct Multicolor Boulder Opal Gemstones, Oval, Opaque
Boulder Opal Product Video (300453)

28.58ct Multicolor Boulder Opal, Oval, Opaque
ID: 300453
Weight: 28.58ct
Size: 23.1 x 18.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 240.07
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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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21.82ct Multicolor Boulder Opal Gemstones, Cushion, Opaque
Boulder Opal Product Video (627639)

21.82ct Multicolor Boulder Opal, Cushion, Opaque
ID: 627639
Weight: 21.82ct
Size: 20.7 x 16.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 201.61
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2.44ct Reddish Orange Hessonite Garnet Gemstones, Emerald Cut, VS-SI

2.44ct Reddish Orange Hessonite Garnet, Emerald Cut, VS-SI
ID: 431529
Weight: 2.44ct
Size: 7.7 x 7.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 48.31
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12.31ct Light Pink Kunzite Gemstones, Emerald Cut, VS
Kunzite Product Video (695440)

12.31ct Light Pink Kunzite, Emerald Cut, VS
ID: 695440
Weight: 12.31ct
Size: 13 x 13 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 369.30
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1.37ct Navy Blue Kyanite Gemstones, Pear Shape, SI
Kyanite Product Video (646936)

1.37ct Navy Blue Kyanite, Pear Shape, SI
ID: 646936
Weight: 1.37ct
Size: 7.9 x 5.5 mm
Clarity: SI
Content: 1 pc
Price: $ 41.10
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3.93ct Bi-color Tourmaline Gemstones, Fancy, Transparent

3.93ct Bi-color Tourmaline, Fancy, Transparent
ID: 690457
Weight: 3.93ct
Size: 12 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 92.29
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26.46ct Light Blue Chalcedony Gemstones, Pear Shape, Opaque
Chalcedony Product Video (694293)

26.46ct Light Blue Chalcedony, Pear Shape, Opaque
ID: 694293
Weight: 26.46ct
Size: 33.4 x 17.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 79.38
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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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65.37ct Multicolor Jasper Gemstones, Cushion, Opaque

65.37ct Multicolor Jasper, Cushion, Opaque
ID: 522920
Weight: 65.37ct
Size: 36 x 29.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 66.43
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1.25ctw Lively Yellowish Green Peridot Gemstones, Oval, Transparent

1.25ctw Lively Yellowish Green Peridot, Oval, Transparent
ID: 686804
Weight: 1.25ct (total)
Size: 6.1 x 4.2 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 22.50
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5.11ct Brownish Yellow Apatite Gemstones, Baguette, VS

5.11ct Brownish Yellow Apatite, Baguette, VS
ID: 407937
Weight: 5.11ct
Size: 14.5 x 7.9 mm
Clarity: VS
Content: 1 pc
Price: $ 280.26
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18.78ct Deep Salmon Pink Coral Gemstones, Fancy, Opaque
Coral Product Video (256349)

18.78ct Deep Salmon Pink Coral, Fancy, Opaque
ID: 256349
Weight: 18.78ct
Size: 18.1 x 16.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 396.64
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40.89ct Multicolor Labradorite Gemstones, Pear Shape, Opaque

40.89ct Multicolor Labradorite, Pear Shape, Opaque
ID: 587134
Weight: 40.89ct
Size: 29.1 x 24.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 53.98
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2.06ct Lively Green Peridot Gemstones, Cushion, VS

2.06ct Lively Green Peridot, Cushion, VS
ID: 415934
Weight: 2.06ct
Size: 8.4 x 6.2 mm
Clarity: VS
Content: 1 pc
Price: $ 88.37
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6.89ct Medium Orange Star Moonstone Gemstones, Oval, Translucent

6.89ct Medium Orange Star Moonstone, Oval, Translucent
ID: 414085
Weight: 6.89ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 36.38
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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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10.67ct Multicolor Ruby in Fuchsite Gemstones, Marquise, Translucent

10.67ct Multicolor Ruby in Fuchsite, Marquise, Translucent
ID: 384795
Weight: 10.67ct
Size: 28.1 x 13.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 96.20
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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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4.97ct Warm Green Sphene Gemstones, Pear Shape, VS-SI
Sphene Product Video (380599)

4.97ct Warm Green Sphene, Pear Shape, VS-SI
ID: 380599
Weight: 4.97ct
Size: 11.3 x 9.7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 644.29
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0.99ct Light Greenish Yellow Chrysoberyl Gemstones, Pear Shape, VS

0.99ct Light Greenish Yellow Chrysoberyl, Pear Shape, VS
ID: 366559
Weight: 0.99ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 115.84
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26.42ct Multicolor Rainbow Pyrite Gemstones, Heart, Opaque

26.42ct Multicolor Rainbow Pyrite, Heart, Opaque
ID: 645905
Weight: 26.42ct
Size: 25.8 x 24.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 68.69
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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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8.25ct Clear with Brown Rutile Quartz Gemstones, Round, Transparent

8.25ct Clear with Brown Rutile Quartz, Round, Transparent
ID: 567151
Weight: 8.25ct
Size: 14 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 24.94
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42.68ct Multicolor Jasper Gemstones, Cushion, Opaque

42.68ct Multicolor Jasper, Cushion, Opaque
ID: 685584
Weight: 42.68ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 42.50
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2.15ct Deep Orange Hessonite Garnet Gemstones, Emerald Cut, VS-SI

2.15ct Deep Orange Hessonite Garnet, Emerald Cut, VS-SI
ID: 431804
Weight: 2.15ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 51.08
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3.51ct Pinkish Violet Purple Kunzite Gemstones, Emerald Cut, VS
Kunzite Product Video (691524)

3.51ct Pinkish Violet Purple Kunzite, Emerald Cut, VS
ID: 691524
Weight: 3.51ct
Size: 7.6 x 7.6 mm
Clarity: VS
Content: 1 pc
Price: $ 96.98
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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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24.51ct Multicolor Lepidolite Gemstones, Fancy, Opaque

24.51ct Multicolor Lepidolite, Fancy, Opaque
ID: 696110
Weight: 24.51ct
Size: 33.4 x 19.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 14.71
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5.76ct Multicolor Coral Gemstones, Round, Translucent

5.76ct Multicolor Coral, Round, Translucent
ID: 565407
Weight: 5.76ct
Size: 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 22.81
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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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7.86ct Medium Yellow Cat's Eye Opal Gemstones, Oval, Translucent

7.86ct Medium Yellow Cat's Eye Opal, Oval, Translucent
ID: 494138
Weight: 7.86ct
Size: 15 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 17.02
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70.16ct Dark Green Bloodstone Gemstones, Oval, Opaque

70.16ct Dark Green Bloodstone, Oval, Opaque
ID: 693247
Weight: 70.16ct
Size: 47.3 x 32.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 38.72
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0.81ct Multicolor Opal Gemstones, Round, Transparent
Opal Product Video (536904)

0.81ct Multicolor Opal, Round, Transparent
ID: 536904
Weight: avg. 0.81 ct / each
Size: 7 mm (calibrated)
Clarity: Transparent
Price: $ 19.73
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0.74ct Lemon Yellow Grossularite Garnet Gemstones, Round, VVS
Grossularite Garnet Product Video (504774)

0.74ct Lemon Yellow Grossularite Garnet, Round, VVS
ID: 504774
Weight: 0.74ct
Size: 5.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 44.40
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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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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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1.27ct Yellow Beige Color-Change Diaspore Gemstones, Emerald Cut, SI

1.27ct Yellow Beige Color-Change Diaspore, Emerald Cut, SI
ID: 390040
Weight: 1.27ct
Size: 12.1 x 3.9 mm
Clarity: SI
Content: 1 pc
Price: $ 82.27
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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

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

Overall Rating -> 9 star ratings

I did not have any problems

Posted By Clilrichard in January, 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

When I need a specific stone, gem select is my go to shop. Always a good experience and a great product.

Posted By LeAnn in April, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

everything was fine

Posted By Marc in January, 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 -> 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

the selection is good as are the prices

Posted By Old man in August, 2025
Source: Bizrate
Enlarged Gemstone Image