Client Testimonials

Happy clients are our goal!

"My gem is better than I could have imagined. I truly loved the process of getting a gem from John. He was very thorough in explaining how the process worked and the timing - there were no surprises. The best part was how well he listened to what I liked and didn't like. I really enjoyed his consistent communication and pictures as the gems went from just rocks (my laymen interpretation) to works of art. He truly wanted me to have everything I wanted. In the end, I have the perfect gem for me!"

Michelle M., CO

Note from John: "It worked out perfectly that we were cutting the type of gem material that Michelle wanted and it was a pleasure working with her and unveiling a gem that was a fit for her desires. For more info on how "cutting to order" works and the limitations on that process please read this section of our website.

Round Australian Parti Color Sapphire Engagement ring by Eric Olson Master Jeweler of Luisville, CO
Round Australian Parti Color Sapphire cut by John Dyer & Co. in an engagement ring made by Eric Olson Master Jeweler of Luisville, CO.



StarBrite™ cushion Swiss Blue Topaz cut by John Dyer & Co. in a custom designed pendant by Marlor Jewelry of Eau Claire, WI
StarBrite™ cushion Swiss Blue Topaz cut by John Dyer & Co. in a custom designed pendant by Marlor Jewelry of Eau Claire, WI
Hi John, Here's a pic of the blue topaz we bought and set into a pendant of ours. I put it in inventory and we sold it in a few days. Thanks for making it so easy!

Mark Pierog, Marlor Jewelry Eau Claire, WI

I received the stone today & must say it is more beautiful than the photo!!!

Resa W., AZ

"The zircon arrived today, and it is truly stunning! Your cut has captured every possible play of light in the stone. The slightest bit of movement just causes an explosion of light play on the facets.”

Carl H., WA

“It's the most beautiful gemstone I've ever seen.  I'm honored to have it symbolize something as meaningful as the commitment I'm making for the rest of my life and equally as excited to wear something so magnificent on my hand for the rest of my days.”

Chelsea B., CA

"Dear John, I'm writing you as a "thank you" of sorts, on your beautiful work. I recently got engaged (this last weekend) and could not have been more surprised and in awe of the Montana Sapphire you helped my beau decide upon. I could not have asked for a more sparkly, show-stopper of a gem. It's total magic. Your ability to cut gems is really something of an art. Thank you so so much for sharing this beauty with me. I couldn't have asked for anything more beautiful for my engagement ring."

Jamie M., CA

"It's gorgeous and exactly the kind of colour I had hoped for. It is a beautiful gem. I have been continually getting it out of the box all day to let it sparkle in the light. I now have the dreadful task of letting it go and sending it to the jewellers when all I want to do is keep looking at it. :)"

Adam B., UK

"The zircon arrived today, and it is truly stunning! Your cut has captured every possible play of light in the stone. The slightest bit of movement just causes an explosion of light play on the facets.”

Carl H., WA

Super Trillion cut Morganite for an engagement ring
Morganite Super Trillion™ cut by John Dyer & Co. sold to Adam B., UK


"The aquamarine exceeds my expectations. It is absolutely everything and more than I was hoping. The cutting is superb."

Desirae M., OR

"I got the gems today. They are fabulous! I can't wait to buy more of them in the future!

Terri C., FL

“Hi John, just letting you know that my client received her stones today and she LOVES them!”

Terri C. FL

"I have a whole new appreciation for citrine now, what a lovely colour and your Super Trillion is a breathtaking cut."

K. Lewis, New Zealand

"Night and day difference between the previous stone I obtained. I love it - the color is wonderful, your description seemed spot on."

Nate M., CA

"Wow! I received the stones and they are AMAZING (but I'm sure you hear that all the time) :-)”

Tamara at McFarland Designs

"The gem is absolutely stunning...Such great clarity, color, and of course, the way you cut the stone, makes it truly special."

Kyle G., CO

"Received the gem this morning. What a stone! I never expected it it to be so bright!"

Matt P., UK

"The fire you bring out in a gem is insane, I think I'm blind from looking at it in the sunlight."

Katie S., CA

"The stone arrived and I love it! This is the perfect sapphire for my engagement ring. Thank you so much!"

Debra N., Texas 

"Thank you, I appreciate all of your help and your awesome customer service!"

Clint T., IL

"You've been amazingly helpful. I'd never realized cut gems could be like art until I saw yours."

Aisha F., UK

“There are gems I like, gems I love, gems that make me gasp when I first see them and gems that make me speechless! This is a speechless gem!!

Terri C., FL

"That Ametrine is stunning!! I have never seen anything like it before."

Ewen R., Australia

"My sunstone arrived & I love it! It now holds a special place in my collection of favorite gems."

Olivia N., CA

"The stones arrived and they look fantastic! Better than I had hoped."

Alessandro M., CT

Fantasy Cut multi color Oregon Sunstone by JOhn Dyer Gems
Fantasy "Dreamscape™" Oregon Sunstone cut by John Dyer & Co. purchased by Olivia, N., CA



It is the most beautiful and exciting aquamarine. Absolutely charmingly faceted. Thank you so very, very much!"

London, UK

"You have been amazing to deal with! This stone is so much better in person than what I had ever imagined! You have an amazing talent and I look forward to purchasing more stones from you!"

Samantha K., Australia

"Just got the gem. It is so beautiful and absolutely perfect for the project! Thank you again!"

Peter C., WI

"Got the stone, OMG it's so beautiful!!!!"

Joanne M., CT

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