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Buy 30 - 40 mm Boulder Opal Gems

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30 - 40 mm Boulder Opal Gems

Over 18 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

This business makes it easy to research and find all pertinent information about the individual gemstones and other information such as the recommend use (ring or pendent for example). Also it's important to know about things like hardness and durability of the gemstones. I also appreciate the history of purchases and transaction details. Just be sure to register on the website to get the best experience.

Posted By Greg in January, 2023
Source: Bizrate

Overall Rating -> 9 star ratings

Everything was good but since I am still new I was surprised at how small the stones where.

Posted By Js in May, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I recently bought some stones for Christmas gifts for my family from GemSelect and was thrilled at the speed they arrived to me. The descriptions were accurate and could be verified by myself upon receiving the stones, though the only issue i had was finding exact stones i wanted. The sorting system is fanastically detailed, but often seems to trim more results than expected when i was selecting things to look by. They arrived safely and all together, as described per my purchase order and i could not be more satisfied. There aren't many that are looking to buy loose stones like this, but it really gets the job done.

Posted By Lev in December, 2022
Source: Bizrate

Overall Rating -> 8 star ratings

Everything was good about this order except I was a little disappointed in the product because it was so small. This is the first time that I have ever bought a gem so I was very unfamiliar with the sizes mainly because measurements were in metric.

Posted By Bgq162 in September, 2022
Source: Bizrate

Overall Rating -> 9 star ratings

I was led to the site by google when looking for specific green sapphire briolette. Site is well laid out and very easy to purchase from. Hope the stone is as satisfying!

Posted By Flutie in March, 2023
Source: Bizrate

Overall Rating -> 8 star ratings

je ne peux imprimer de facture

Posted By Ti-sa in September, 2022
Source: Bizrate

Overall Rating -> 10 star ratings

Purchase process is easy. Make the selection online and pay for it. About a week to 10 days later the stone shows up. Very easy and on time.

Posted By Brien in October, 2022
Source: Bizrate

Overall Rating -> 10 star ratings

The website is quick, easy, good layout, very clear and easy to use.

Posted By Mouse in February, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

The product was held up in Anchorage Alaska due to customs. It was also delayed in the U.S. by bad weather. Final delivery was not until the 29th of December.

Posted By Dick in December, 2022
Source: Bizrate

Overall Rating -> 7 star ratings

The sorting functions have changed and it is not as friendly as before

Posted By Gemshopper in March, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

all its ok

Posted By PETER in December, 2022
Source: Bizrate

Overall Rating -> 9 star ratings

no feedback

Posted By Mama in July, 2022
Source: Bizrate

Overall Rating -> 8 star ratings

I like to use GemSelect for finding calibrated sizes of gemstones. I purchased sapphires a few years ago and found the quality to be outstanding so I went ahead and purchased some more today (different) and some really unique moonstone. I'm opening a jewelry busy soon and so accurate gemstone sizes, quality, and reliability as a supplier is really important to me. Gemselect seems to fill all those requirements.

Posted By J in November, 2022
Source: Bizrate

Overall Rating -> 10 star ratings

I have been here before, so I know how the site works. I enjoy looking at the gems and buying some. The site functions well.

Posted By Bugs in June, 2022
Source: Bizrate

Overall Rating -> 10 star ratings

Another great purchase. I just received my 3rd order and have another coming soon. Won't buy anywhere else!

Posted By Beth P. in June, 2022
Source: Bizrate
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All Gemstones (145)
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  		•  Actinolite Cat's Eye
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    • B Back to Top
  		•  Black Opal
  		• Bloodstone
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    • C Back to Top
  		•  Carnelian
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  		• Cat's Eye Gemstones
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    • D Back to Top
  		•  Demantoid Garnet
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    • E Back to Top
  		•  Emerald
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    • F Back to Top
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    • M Back to Top
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    • N Back to Top
  		•  Nuummite
    • O Back to Top
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    • P Back to Top
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  		•  Quartz
  		• Quartz Cat's Eye
  		• Quartz With Hedenbergite
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    • R Back to Top
  		•  Rainbow Moonstone
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    • S Back to Top
  		•  Sapphire
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  		• Sillimanite Cat's Eye
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    • T Back to Top
  		•  Tanzanite
  		• Tiger's Eye
  		• Tiger's Eye Matrix
  		• Topaz
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    • V Back to Top
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

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