search
  • Sign In
    Sign Up
  • English speaking customer support only

    1-800-464-1640

    International:

    +66-39601289

  • Change Language
  • USD
  • CART
FREE SHIPPING

Buy Untreated Gemstones

(19)
Untreated Gemstones Weight Untreated Gemstones Size Untreated Gemstones Clarity Untreated Gemstones Price Untreated Gemstones Origin
More
Untreated Gemstones Single
Untreated Gemstones Pairs
Untreated Gemstones Lots
Untreated Gemstones Faceted
Untreated Gemstones Cabochons
Sort By:
Clear All
Photos are of Actual Products for Sale

16.4 ct Odd Shaped Agate Geode, 18.4 x 12.4 mm From Mexico

Natural Agate Geode, Qty: 2 pcs | 16.40 carat weight Agate Geode

16.40ct (total)2 Pieces
$ 16.40
18.4 x 12.4 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 8.20 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 18.4 x 12.4 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 2
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

54.13 ct Odd Shaped Agate Geode, 26.4 x 24 mm From Mexico

Natural Agate Geode, Qty: 1 pc | 54.13 carat weight Agate Geode

54.13ct1 Piece
$ 59.54
26.4 x 24 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 54.13 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 26.4 x 24 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 1
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

40.83 ct Odd Shaped Agate Geode, 27.6 x 27.5 mm From Mexico

Natural Agate Geode, Qty: 1 pc | 40.83 carat weight Agate Geode

40.83ct1 Piece
$ 44.91
27.6 x 27.5 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 40.83 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 27.6 x 27.5 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 1
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

35.74 ct Odd Shaped Agate Geode, 23.7 x 20.2 mm From Mexico

Natural Agate Geode, Qty: 2 pcs | 35.74 carat weight Agate Geode

35.74ct (total)2 Pieces
$ 35.74
23.7 x 20.2 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 17.87 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 23.7 x 20.2 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 2
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

22.9 ct Odd Shaped Agate Geode, 25.1 x 15.2 mm From Mexico

Natural Agate Geode, Qty: 2 pcs | 22.90 carat weight Agate Geode

22.90ct (total)2 Pieces
$ 62.98
25.1 x 15.2 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 11.45 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 25.1 x 15.2 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 2
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

41.53 ct Odd Shaped Agate Geode, 28.2 x 27.4 mm From Mexico

Natural Agate Geode, Qty: 1 pc | 41.53 carat weight Agate Geode

41.53ct1 Piece
$ 41.53
28.2 x 27.4 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 41.53 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 28.2 x 27.4 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 1
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

29.06 ct Odd Shaped Agate Geode, 21.9 x 18.6 mm From Mexico

Natural Agate Geode, Qty: 2 pcs | 29.06 carat weight Agate Geode

29.06ct (total)2 Pieces
$ 58.12
21.9 x 18.6 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 14.53 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 21.9 x 18.6 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 2
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

22.14 ct Odd Shaped Agate Geode, 17.6 x 16.9 mm From Mexico

Natural Agate Geode, Qty: 2 pcs | 22.14 carat weight Agate Geode

22.14ct (total)2 Pieces
$ 22.14
17.6 x 16.9 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 11.07 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 17.6 x 16.9 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 2
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

28.18 ct Odd Shaped Agate Geode, 18.4 x 16.3 mm From Mexico

Natural Agate Geode, Qty: 2 pcs | 28.18 carat weight Agate Geode

28.18ct (total)2 Pieces
$ 28.18
18.4 x 16.3 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 14.09 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 18.4 x 16.3 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 2
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

44.83 ct Odd Shaped Agate Geode, 30.1 x 30 mm From Mexico

Natural Agate Geode, Qty: 1 pc | 44.83 carat weight Agate Geode

44.83ct1 Piece
$ 44.83
30.1 x 30 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 44.83 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 30.1 x 30 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 1
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

29.17 ct Odd Shaped Agate Geode, 21.2 x 16 mm From Mexico

Natural Agate Geode, Qty: 2 pcs | 29.17 carat weight Agate Geode

29.17ct (total)2 Pieces
$ 29.18
21.2 x 16 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 14.59 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 21.2 x 16 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 2
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

35.43 ct Odd Shaped Agate Geode, 26.6 x 26.1 mm From Mexico

Natural Agate Geode, Qty: 1 pc | 35.43 carat weight Agate Geode

35.43ct1 Piece
$ 38.97
26.6 x 26.1 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 35.43 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 26.6 x 26.1 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 1
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

48.23 ct Odd Shaped Agate Geode, 30.8 x 20 mm From Mexico

Natural Agate Geode, Qty: 2 pcs | 48.23 carat weight Agate Geode

48.23ct (total)2 Pieces
$ 51.23
30.8 x 20 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 24.12 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 30.8 x 20 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 2
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

31.86 ct Odd Shaped Agate Geode, 23.1 x 17.9 mm From Mexico

Natural Agate Geode, Qty: 2 pcs | 31.86 carat weight Agate Geode

31.86ct (total)2 Pieces
$ 63.72
23.1 x 17.9 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 15.93 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 23.1 x 17.9 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 2
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

21.43 ct Odd Shaped Agate Geode, 17.3 x 15 mm From Mexico

Natural Agate Geode, Qty: 2 pcs | 21.43 carat weight Agate Geode

21.43ct (total)2 Pieces
$ 42.86
17.3 x 15 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 10.72 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 17.3 x 15 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 2
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

53.84 ct Odd Shaped Agate Geode, 33.3 x 28.8 mm From Mexico

Natural Agate Geode, Qty: 1 pc | 53.84 carat weight Agate Geode

53.84ct1 Piece
$ 53.84
33.3 x 28.8 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 53.84 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 33.3 x 28.8 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 1
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

40.37 ct Odd Shaped Agate Geode, 35.7 x 20.4 mm From Mexico

Natural Agate Geode, Qty: 1 pc | 40.37 carat weight Agate Geode

40.37ct1 Piece
$ 44.41
35.7 x 20.4 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 40.37 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 35.7 x 20.4 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 1
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

29.27 ct Odd Shaped Agate Geode, 21.5 x 17.5 mm From Mexico

Natural Agate Geode, Qty: 2 pcs | 29.27 carat weight Agate Geode

29.27ct (total)2 Pieces
$ 29.27
21.5 x 17.5 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 14.64 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 21.5 x 17.5 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 2
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart

57.88 ct Odd Shaped Agate Geode, 31.1 x 21.1 mm From Mexico

Natural Agate Geode, Qty: 1 pc | 57.88 carat weight Agate Geode

57.88ct1 Piece
$ 43.41
31.1 x 21.1 mm
Item Description
Stone Type: Loose Agate Geode
Agate Geode Weight: 57.88 ct Agate Geode
Agate Geode Shape: Fancy Crystal Cluster Agate Geode
Agate Geode Size: 31.1 x 21.1 mm Agate Geode
Agate Geode Color: Multicolor Agate Geode
Agate Geode Clarity: Opaque Agate Geode
Agate Geode Origin: Mexico Agate Geode
Agate Geode Treatment: Untreated
Agate Geode Quantity: 1
Agate Geode Certificate: GemSelect
Product Description:
View Details
Add to Cart
The idea of treating gemstones is nothing new. Nowadays, gem treatments are a way to supply the global demand for colored gemstones with a very limited 'natural' supply. Many gem types are always, or almost always, treated. The most common gem treatment is heat treatment, which is routinely applied to ruby and sapphire. Other gems such as emerald, tanzanite, blue zircon and blue topaz, are generally treated to produce their distinctive color; in fact it's virtually impossible to buy blue topaz that has not been irradiated. Even for the most expert gem buyers, determining whether a gemstone has been treated or enhanced is not always easy, and usually requires much more than just a jeweler's loupe.

Even with advanced gemological equipment, many treatments are still almost impossible to detect. So for many gem and jewelry buyers, one of the best ways to ensure the gem they're acquiring is completely natural and untreated, is through the selective buying of gemstone varieties that for the most part are never enhanced in any way. If you're searching for untreated gemstones, you may be surprised to discover we carry over 100 different untreated gem types.

Read All

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Great selection

Posted By GHS40 in December, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Super easy to do business for great products.

Posted By BoBBy in January, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Trustworthy site. I've had several good experiences with company. Products always have met my expectations. Thank you.

Posted By Ray in February, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I had a great time searching all the lovely stones. This is my first precious loose stone purchase for my own work. I chose sapphire, and found some lovely briolettes. I wanted 3, but this set of 4 was perfect. Everything was quick and easy, and I'm excited.

Posted By Phoenix in February, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Great selection and excellent website.

Posted By JBW in October, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to find the color gem I desired and checkout was simple as well. Very excited to receive my gemstone.

Posted By Nikki J in September, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I really enjoy browsing through GemSelect. The selection is always marvelous and I love how detailed everything is described. The only thing I noticed is that when browsing through my phone, the videos of the gems do not load. If there were more videos of the gems, that would be amazing, though I understand that is a lot of work on GemSelect's part! Checking out is also very fast and easy, and I love that the return policy is very good, though I hope I don't have to use it anytime soon.

Posted By ChiChi in January, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

I did not realize how small the stone was. I cannot use it for the project I wanted, but I am keeping the stone and tru to use it in something else.

Posted By Mark in March, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Love gemselect

Posted By Joshua Howard in March, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

Never bought anything on this website before, but it probably won't be my last purchase. Definitely one of the easiest to use and most informative sites I've ever been to.

Posted By Bob in November, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Very excited and impressed with all your products. Keep up the good work....more different stones to choose from. I like Cabachons.

Posted By Meow in June, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Very Good

Posted By Julian in July, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I’ve enjoyed purchasing stones from this site. It’s convenient and fairly priced.

Posted By Chico in May, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to search and find what i wanted

Posted By Gunner in November, 2023
Source: Bizrate

Overall Rating -> 9 star ratings

Easy to use. Limited supply of higher quality gemstones.

Posted By Newfguy in February, 2024
Source: Bizrate
STAY IN TOUCH | NEWSLETTER
*You're signing up to receive GemSelect promotional email.
Partners and Trust Payment options

Switch to Mobile Version

Copyright © 2005-2024 GemSelect.com all rights reserved.

Reproduction (text or graphics) without the express written consent of GemSelect.com (SETT Company Ltd.) is strictly prohibited.

664

Continue Shopping
Checkout
Continue Shopping
Checkout