13 x 13 mm Chalcedony Gemstones

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The selection and filtering is a little overwhelming, but that's only because there is so much to choose from.

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Overall Rating -> 10

My only complaint is that there are so many beautiful and affordable stones that I get distracted from what I planned to order.

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Overall Rating -> 10

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.

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it was good

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Fantastic dealer for quality gemstones. Website is easy to navigate, selection is superb, delivery of purchases is prompt. Easy to select incorrect payment options, however.

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Overall Rating -> 10

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

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I was in the market for birthstones for a lil gift project im doing. I'm no expert in gems or what not but the quality as far as i can tell seems to be spot on.

Posted By PixelComposer in January, 2024

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Overall Rating -> 10

Interested in unusual stones and found many that I purchased or will purchase in the near future. I have been a customer of gem select for almost ten years and have always been pleased with buying experience and the delivered product

Posted By Fairhope Pete in December, 2023

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Overall Rating -> 10

I purchase all of my stones from GemSelect! They're the best I've found for both selection and value.

Posted By Terry in June, 2023

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Overall Rating -> 10

Very large selection of items and we used the stones to have several pieces of jewelry made for us.

Posted By Joe in January, 2024

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Gemstones A-Z

Buy 13x13mm-Chalcedony Gems

17.49 ct Cushion Chalcedony, 22.7 x 15.5 mm From Brazil

11.06 ct Oval Buff Top Chalcedony, 13.6 x 9.8 mm From Brazil

8.75 ct Carved Chalcedony, 14.9 x 14.8 mm From Brazil

26.88 ct Carved Chalcedony, 14.2 x 14 mm From Brazil

7.06 ct Oval Buff Top Chalcedony, 10.8 x 8.9 mm From Brazil

3.16 ct Heart Chalcedony, 10 x 9.9 mm From Namibia

7.56 ct Oval Buff Top Chalcedony, 10.9 x 9 mm From Brazil

22.29 ct Marquise Chalcedony, 30.9 x 16.9 mm From Brazil

5.64 ct Carved Chalcedony, 13.5 x 13.4 mm From Brazil

15.66 ct Cushion Chalcedony, 23.1 x 16.3 mm From Brazil

18.23 ct Cushion Chalcedony, 22.6 x 15.6 mm From Brazil

2.81 ct Oval Buff Top Chalcedony, 10.4 x 8.7 mm From Namibia

10.82 ct Oval Buff Top Chalcedony, 13.6 x 10.1 mm From Brazil

3.65 ct Oval Buff Top Chalcedony, 11.1 x 9.1 mm From Brazil

6.46 ct Heart Chalcedony, 12.3 x 11.8 mm From Brazil

29 ct Cushion Chalcedony, 26.5 x 21.1 mm From Brazil

14.58 carat Pear Chalcedony, loose Certified Chalcedony from Brazil, Natural Untreated Gem, 22.2 x 15.4 mm

13.37 ct Heart Chalcedony, 12.2 x 12.1 mm From Namibia

26.27 ct Carved Chalcedony, 12.8 x 12.1 mm From Brazil

23.85 ct Cushion Chalcedony, 24.4 x 18.9 mm From Brazil

24.82 ct Cushion Chalcedony, 22.7 x 21.5 mm From Brazil

22.97 carat Pear Chalcedony, loose Certified Chalcedony from Brazil, Natural Untreated Gem, 27.9 x 19.2 mm

29.4 ct Cushion Chalcedony, 27.5 x 19.9 mm From Brazil

11.09 ct Oval Buff Top Chalcedony, 14 x 10 mm From Brazil

11.84 ct Carved Chalcedony, 16.7 x 16.5 mm From Brazil

16.1 ct Trillion Chalcedony, 22.2 x 21.2 mm From Brazil

23.03 ct Cushion Chalcedony, 24.1 x 18.1 mm From Brazil

31.2 ct Carved Chalcedony, 14.7 x 14.7 mm From Brazil

12.02 ct Oval Buff Top Chalcedony, 14 x 10 mm From Brazil

28.5 ct Cushion Chalcedony, 24.4 x 21.8 mm From Brazil

34.74 ct Carved Chalcedony, 15 x 14.9 mm From Brazil

11.83 carat Pear Chalcedony, loose Certified Chalcedony from Brazil, Natural Untreated Gem, 20.1 x 15.4 mm

Gemstone Information

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