Geologic Spectrum

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United States
Denver, CO
Geologic Spectrum

Precision Cut Gemstones

Website: www.GeologicSpectrum.com
Instagram: www.instagram.com/GeologicSpe Hand Faceted & Precision Cut Gemstones

09/06/2026

1.77ct Concave Fantasy Cut Montana Sapphire ☁️

We just listed this beautiful natural unheated sapphire from the Eldorado Bar in Helena Montana!

This gem features a silky opalescent teal color in indoor LED lighting, and a soft blue in natural outdoor light sources.

This sapphire was cut in a custom concave hexagon design, following the natural shape of the rough crystal.

08/28/2026

1.51ct Spectrum Fantasy Cut “Stormy” Montana Sapphire ⛈️

We just listed this stunning natural unheated sapphire from the Eldorado Bar in Helena Montana!

This gem features a primary gray color with a slight pleochroic blue/green that softly reflects along the sides. The best way to describe this unique color would be the sky before a thunderstorm. 🌩️

This sapphire was cut in a custom marquise/oval design, following the natural shape of the rough crystal.

The back of the gem was fantasy carved to give a unique static starburst effect. 💫

08/08/2026

1.71ct Spectrum Fantasy Cut Ilakaka Sapphire 🌊

We recently finished and listed this stunning natural periwinkle beauty from the famed Ialkaka deposit of Madagascar!

This gem features a light periwinkle color that shifts slightly towards in the lavender and blue ends of the spectrum under different lighting. This stunning sapphire was cut in a custom oval-marquise hybrid design, following the natural shape of the rough crystal.

The back of the gem was fantasy carved to give a unique static starburst effect. 💫

08/03/2026

Posting some prime Montana eye candy today. NFS

This gem was an exceptional teal to green 3.97ct Montana Sapphire pulled from Eldorado bar in Helena Montana. Stones of this size and clarity are exceptionally rare treasures.

This massive cushion sapphire was cut with a concave pavilion to provide a static brilliance and showcase its beautiful color.

The last image shows the massive rough nodule on the left. I believe this one started a little over 10 carats. Large rough like this one are often so stunning that it’s difficult to start the cutting process.

07/24/2026

2.06ct Spectrum Fantasy Cut Montana Sapphire 🌿

We recently finished this stunning natural unheated teal beauty from the Eldorado Bar in Helena Montana! This gem features a primary green color with a teal color shift outdoors. This sapphire was cut in a custom oval design, following the natural shape of the rough crystal.

The back of the gem was fantasy carved to give a unique static starburst effect. 💫

06/28/2026

3.31ct Spectrum Fantasy Cut Tourmaline.

We just listed this newly finished Celtic knot inspired fantasy Tourmaline!

This lovely Tourmaline is sourced from the Nigeria and features a lovely pink color with occasional splashes of light green. Check out the outdoor videos to see the outstanding color in action! This stunning gem is full of life, color and sparkle.

The gem was cut in a custom made elongated hexagon design, with a fantasy carved pavilion to provide a unique static starburst effect. 💫

⚒️ www.geologicspectrum.com ⚒️

Gemstone dimensions & price can be openly found on our website listing. Please reach out via private message if you’re interested in payment plan options.

Feel free to send us a message if you have any questions or would like to see additional videos or photos. ✌️

05/10/2026

1.33ct Spectrum Fantasy Cut Montana Sapphire 🌿

We just listed this beautiful verdant spring green Montana Sapphire from the Eldorado bar, cut in a highly sought after oval shape!

The back of the gem was fantasy carved to give a unique static starburst effect. 💫

⚒️ www.geologicspectrum.com ⚒️

Gemstone dimensions & price can be openly found on our website listing. Please reach out via private message if you’re interested in payment plan options.

Feel free to send us a message if you have any questions or would like to see additional videos or photos. ✌️

04/25/2026

1.04ct Spectrum Fantasy Cut Australian Parti Sapphire 🌱 ☀️

We just listed this eye catching Parti Sapphire from the Australian gem fields, cut in popular round design with a fantasy starburst pavilion. This gem features a beautiful partition of vibrant greens & warm yellows. Truly a lovely gem to welcome the spring season!

The back of the gem was fantasy carved to give a unique static starburst effect. 💫

⚒️ www.geologicspectrum.com ⚒️

Gemstone dimensions & price can be openly found on our website listing. Please reach out via private message if you’re interested in payment plan options.

Feel free to send us a message if you have any questions or would like to see additional videos or photos. ✌️

Address

Denver, CO

Website

http://www.GeologicSpectrum.com/

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