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

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. ✌️

05/03/2026

3.10ct Spectrum Fantasy Cut Sunset Tourmaline. 🌅

We just listed this new fantasy Tourmaline!

This deep fiery Dravite Tourmaline is sourced from Tanzania and features a deep reddish orange primary color with yellow accents when tilting the stone. The color is rich and saturated indoors and absolutely comes alive outdoors in natural light. Check out the videos to see the gem in outdoor lighting conditions! This is not a color or design you see everyday. Truly one of a kind. 🔥

The gem was cut in a custom made oval 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. ✌️

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. ✌️

04/19/2026

0.84ct Spectrum Fantasy Cut Montana Sapphire 🔥

We just listed this stunning and unique Montana Sapphire from the Rock Creek deposit, cut using the hexagonal shape of the natural crystal. This gem features a solid blue to purple color change with a splash of reddish orange. Truly one of a kind. This gem was heated to reduce rutile silk and improve color saturation.

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. ✌️

04/18/2026

0.86ct Rock Creek Montana Sapphire 🍊

We just listed this fancy Montana Sapphire from the Rock Creek deposit in Montana. This sapphire predominantly boasts an orange color with minor silvery-peach undertones. It’s a lovely bright and clean gem with a unique color combo. This gem has been heat treated for rutile silk reduction and color.

⚒️ 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. ✌️

04/05/2026

1.33ct Spectrum Fantasy Cut Tourmaline. 💍

We just listed this newly finished fantasy Tourmaline!

This lovely Tourmaline is sourced from the Calabar Nigeria and features a silvery light blue color with soft splashes of lavender. Check out the outdoor videos to see the outstanding color! This stunning gem is full of life 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. ✌️

04/01/2026

Here’s a lovely and exceptionally clean 2.22ct Peridot that we cut for a client. 🍏

This material was sourced from the Xinjiang region of China and is found within thin seams of volcanic basalt. 🌋

We love the distinct facet doubling visible when looking through the crown of the gem. This is due to the high birefringence (or double refraction) of peridot. This is caused by the splitting of a single light ray into two, each with vibration directions oriented mutually perpendicular, traveling at different velocities. 🤓

03/15/2026

1.85ct Spectrum Fantasy Cut Songea Sapphire. 🪄

We just listed this newly finished fantasy Songea Sapphire! We’re getting strong dark elf vibes from this gemstone.

There is a strong color change exhibited in this gem. It’s difficult to capture the essence of the numerous moody colors that are present. The most prominent color in natural lighting is a steely blue with slight shades of teal around the edges and a static yellow bi-color zone. From there, the color changes to a purple when exposed to warm incandescent lighting. This stone is strictly for people looking for a unique color change gem that changes with the light. All videos are taken in outdoor natural sunlight. The last video shows the side view of the stone which kicked out red, yellow, green, blue and purple. It’s wild.

The gem was cut in a custom moval (marquise-oval) hybrid 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. ✌️

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Denver, CO

Website

http://www.GeologicSpectrum.com/

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