Buy Obsidian Gems

(7)

Gem Type

Color

Clear Colors

Single

Pairs

Lots

Faceted

Cabochons

All Sizes Size Ranges

Sort By:

Clear All

23.2 x 19.2mm Trillion Cabochon Black Obsidian from United States, Weight of 12.98ct, Natural untreated gemstone in Opaque Clarity, 1pc Obsidian - the Color is Black With Bronze, Mohs Hardness of 5 - 5.5

$2142

23.2 x 19.2 mm

Item in Stock

Add to Cart

Buy Now

24.1 x 19.9mm Trillion Cabochon Black Obsidian from United States, Weight of 18.03ct, Natural untreated gemstone in Opaque Clarity, 1pc Obsidian - the Color is Black With Bronze, Mohs Hardness of 5 - 5.5

$2976

24.1 x 19.9 mm

Item in Stock

Add to Cart

Buy Now

26.72ct Trillion Black With Bronze Obsidian from Mexico, Dimension 27.3 x 21.9mm, Natural untreated Gemstone, Opaque Clarity, 1pc Trillion Cabochon Obsidian, Mohs Hardness of 5 - 5.5

$2939

27.3 x 21.9 mm

Item in Stock

Add to Cart

Buy Now

24.1 x 19.3mm Trillion Cabochon Black Obsidian from United States, Weight of 11.78ct, Natural untreated Gemstone in Opaque Clarity, 1pc Obsidian - Color: Black With Bronze, Mohs Hardness of 5 - 5.5

$1944

24.1 x 19.3 mm

Item in Stock

Add to Cart

Buy Now

17.87ct Trillion Black With Bronze Obsidian from United States, Dimension 24.8 x 20.1mm, Natural untreated Gemstone, Opaque Clarity, 1pc Trillion Cabochon Obsidian, Mohs Hardness of 5 - 5.5

$2949

24.8 x 20.1 mm

Item in Stock

Add to Cart

Buy Now

15.68ct Trillion Cabochon Black Obsidian from United States, Dimension 25 x 21mm, Natural untreated Gemstone, Opaque Clarity, 1 piece Obsidian in Black With Bronze Color, Mohs Hardness of 5 - 5.5

$2587

25 x 21 mm

Item in Stock

Add to Cart

Buy Now

15.82ct Trillion Cabochon Black Obsidian from United States, Dimension 23.6 x 20.4mm, Opaque Clarity, Natural untreated gemstone, 1pc Obsidian in Black With Bronze Color, Mohs Hardness of 5 - 5.5

$2610

23.6 x 20.4 mm

Item in Stock

Add to Cart

Buy Now

Obsidian

Obsidian is a naturally occurring volcanic glass. It is formed when felsic lava extruded from a volcano cools without crystal growth. Obsidian has been known since prehistoric times, and has some fascinating properties as well as some important practical uses. In addition to its use as a gemstone, obsidian has been used in cardiac surgery, as well-crafted obsidian blades have a cutting edge many times sharper than high-quality steel surgical scalpels.

In some stones, the inclusion of small, white, radially clustered crystals of cristobalite in the black glass produce a blotchy or snowflake pattern, and this is known in the gem trade as snowflake obsidian.

Certified Customer Reviews

Overall Rating -> 10

I have purchased several lots of gemstones from Gem Select and have always been happy with the high quality of stones, as well as promptness of service and excellent packaging.

Posted By Larry in July, 2021

Source: Bizrate

Overall Rating -> 10

Completely would recommend this company to any gem collector, jewelry store, or someone looking for a gemstone to repair their jewelry. There is an abundance of choices at great prices! If you donâ€™t see what you need exactly the customer service department will go above and beyond to meet your needs. Shipping is very reasonable! The gemstones always arrive well before the expected arrival date. This company has very high standards of meeting their customers needs! They are the number 1 company I go to when looking for any gemstone. They are also very detailed in their descriptions so there is no confusion at all as what you are purchasing! Highly recommended!!!!

Posted By Cliff in July, 2021

Source: Bizrate

Overall Rating -> 10

If you want a gem that you can trust to not be treated, or if it is itâ€™s disclosed this is the place! Thereâ€™s something for everybody. I really like knowing that the picture of the item is the one Iâ€™m buying, not a sample or stock photo. If you make jewelry, buy gems here! You can even buy a gem and have it set by a jeweler. Again, they have an amazing inventory, and prices are more than fair. You wonâ€™t be disappointed! I just wish they sold uncut gems. Sometimes I just want a specimen in the crystal form. Iâ€™m surprised they had no quartz from Arkansas, but they have a great selection of anything Iâ€™ve ever looked for.

Posted By Nita in July, 2021

Source: Bizrate

Overall Rating -> 10

I was looking for a tourmaline but although there were numerous beautiful stones to choose from, there was none that fit my need. Then I thought of some other beautiful stones I love and sunstone came to mind. I so thrilled when I was able to find the most gorgeous sunstone and with the exact specifications of my need. GemSelect makes it extremely easy to find the exact stone your looking for quickly and check out is just as easy to go through. I would (and have) definitely recommend GemSelect because of the large selection of stones, ease of use, and fast affordable shipping.

Posted By Ngibson82 in July, 2021

Source: Bizrate

Overall Rating -> 10

It was easy to find the kind of stone I was looking for in the price range I preferred.

Posted By S.S. in July, 2021

Source: Bizrate

Overall Rating -> 10

ease of going through site and making purchase. will update when item received

Posted By CAT in July, 2021

Source: Bizrate

Overall Rating -> 9

The site it's self looks fairly plain and simple but the wide variety of stones with high quality photos and price ranges made finding a beautiful stone in my price range was extremely easy.

Posted By Randy in July, 2021

Source: Bizrate

Overall Rating -> 10

I love collecting Gems and Gemselect is my go to place to get them. I have never been dissatisfied with any of my orders. I also love the information that they give for each gem.

Posted By Pierre de la Fontaine in July, 2021

Source: Bizrate

Overall Rating -> 10

Easy to navigate website, excellent photos of gemstones, good information about the different gemstones

Posted By Max in July, 2021

Source: Bizrate

Overall Rating -> 8

I was looking for gemstones to use for making jewelry for birthday gifts. It was east to find what i needed with the birthstone information and quick and easy to locate gems. Ive never bought gems from anywhere else. This is a good site

Posted By Michavo in July, 2021

Source: Bizrate

Gemstone Information

Popular Gemstones

Seller Trust

Selected Gemstones

Selected Shapes

Gemstones A-Z

Buy Obsidian Gems

23.2 x 19.2mm Trillion Cabochon Black Obsidian from United States, Weight of 12.98ct, Natural untreated gemstone in Opaque Clarity, 1pc Obsidian - the Color is Black With Bronze, Mohs Hardness of 5 - 5.5

24.1 x 19.9mm Trillion Cabochon Black Obsidian from United States, Weight of 18.03ct, Natural untreated gemstone in Opaque Clarity, 1pc Obsidian - the Color is Black With Bronze, Mohs Hardness of 5 - 5.5

26.72ct Trillion Black With Bronze Obsidian from Mexico, Dimension 27.3 x 21.9mm, Natural untreated Gemstone, Opaque Clarity, 1pc Trillion Cabochon Obsidian, Mohs Hardness of 5 - 5.5

24.1 x 19.3mm Trillion Cabochon Black Obsidian from United States, Weight of 11.78ct, Natural untreated Gemstone in Opaque Clarity, 1pc Obsidian - Color: Black With Bronze, Mohs Hardness of 5 - 5.5

17.87ct Trillion Black With Bronze Obsidian from United States, Dimension 24.8 x 20.1mm, Natural untreated Gemstone, Opaque Clarity, 1pc Trillion Cabochon Obsidian, Mohs Hardness of 5 - 5.5

15.68ct Trillion Cabochon Black Obsidian from United States, Dimension 25 x 21mm, Natural untreated Gemstone, Opaque Clarity, 1 piece Obsidian in Black With Bronze Color, Mohs Hardness of 5 - 5.5

15.82ct Trillion Cabochon Black Obsidian from United States, Dimension 23.6 x 20.4mm, Opaque Clarity, Natural untreated gemstone, 1pc Obsidian in Black With Bronze Color, Mohs Hardness of 5 - 5.5

Obsidian

Article Categories

Gemstone Information A-Z

Birthstones By Month

History of Gemstones

Healing Gemstones

Buying Gemstones

How-to Articles

Charts and Lists

Gems By Color

Did You Know?

Gem Info by Region

Technical Information on Gemstones

Gemstones By Date

Gemstone Shape and Cut

Gemstone Treatments

Gemstone Jewelry Articles