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Customer testimonials

Colombian Emeralds By Mauro Carvajal & Colonial Gemstones place picture
Colombian Emeralds By Mauro Carvajal & Colonial Gemstones
5.0
Based on 55 reviews
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Stella W profile picture
Stella W
4 weeks ago
If you are looking for a reliable emerald expert, Mauro is the person to go to. He is extremely professional, honest, and trustworthy. What sets him apart is his passion and helpful attitude—he truly cares about his clients. It was a pleasure working with him!
Kalamunda Jewellers profile picture
Kalamunda Jewellers
3 months ago
very happy with my recent purchase. The customer service was excellent, and the quality of the item is outstanding. I also truly appreciate the follow-up after the sale.
I highly recommend your Gemstone and services.
Stephen Mansour profile picture
Stephen Mansour
3 months ago
Have had an absolutely magnificent experience with Mauro. He is the true expert in all things Emerald (especially Colombian Emeralds). Throughout the process he has been fantastic in his communication and it has resulted in an amazingly beautiful Emerald ring, which is timeless. The quality of the Emerald is also unmatched compared to others seen at the same price point (it helps buying wholesale rather than retail). Could not recommend Mauro more highly and will be back to buy from him again! Many thanks Mauro.
vanessa bazzacco profile picture
vanessa bazzacco
4 months ago
I had been searching for months for the perfect emerald stone for my engagement ring and spoke with many dealers both in Sydney and overseas before I finally came across Mauro at Colonial Gemstones.

The moment I saw my Muzo Colombian emerald, I knew my search was over. Mauro was patient, genuine and very easy to communicate with throughout the whole process, which made such a difference when making an important purchase like this.

Because of the trust he built, I now feel completely comfortable entrusting Mauro to design both my engagement ring and my future wedding ring. It’s been a really special experience and I’m looking forward to creating more beautiful jewellery pieces with Mauro and the team in the future.
Min Thant Sin profile picture
Min Thant Sin
6 months ago
Silvana Escobar Gómez profile picture
Silvana Escobar Gómez
9 months ago
I had such a great experience with Colonial Gemstones and Mauro! The whole process was super easy and communication was great the entire time. Mauro made sure I was really happy with my ring — the emerald is absolutely beautiful and the whole ring turned out even better than I imagined. They were also really understanding and worked with my budget, which I really appreciated. I’m so happy with my ring and would definitely recommend them to anyone.
Rania profile picture
Rania
9 months ago
Exceptional experience with Colonial Gemstones! Mauro’s customer service is excellent. He took the time to explain every detail, answered all my questions, and even accommodated FaceTime meetings. What really stood out was his willingness to respond outside business hours, reassuring me and addressing my concerns. He's pleasant, honest, and genuine - a true gem in the industry! We're looking forward to doing business with them again. Highly recommend Colonial Gemstones and Mauro’s expertise.
Ruth profile picture
Ruth
1 year ago
Excellent experience! Mauro's Colombian emeralds are absolutely beautiful. He was happy to share his knowledge of emeralds with me, took the time to chat through different stones, different sizes and cuts. I purchased a necklace that was the most exquisite green I have ever seen - I will be wearing it for years. I am already thinking of my next purchase! Thank you again Mauro for your time and knowledge, and making the process enjoyable💚

Trusted Certifications, Gem Labs & Industry Partners

International Colored Gemstone Association
emeralds lab 1
Guild gem lab
emeralds lab 2
Mauro Carvajal
emeralds lab 3
Gemological Association of Australia
GRS Swiss Lab

Colombian Emeralds

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Register Our Next colombia emerald tour

Register your interest in the Exclusive Colombian Emerald Tour.

Join an exclusive 10-day Emerald Tour into the heart of Colombia’s legendary emerald mines.

  • Exclusive Mine Access: Direct entry into active mining operations at Muzo, Coscuez & Chivor.

  • Technical Workshops: Hands-on training in grading,  cutting and treatment identification.

  • Trading Mastery: Learn how the Colombian market operates from the inside.

  • Cultural Heritage: Professional guided city tours and historical insights into Bogotá.