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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 53 reviews
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vanessa bazzacco profile picture
vanessa bazzacco
09:54 25 Mar 26
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
03:46 04 Feb 26
Steven Brnovic profile picture
Steven Brnovic
23:40 11 Nov 25
Absolutely thrilled by my emerald - Mauro was knowledgeable, helpful, responsive and so easy to deal with. The whole experience was great and I look forward to engaging with Mauro again.
Silvana Escobar Gómez profile picture
Silvana Escobar Gómez
07:01 10 Nov 25
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.
Dale Brooks profile picture
Dale Brooks
22:55 18 Oct 25
Thanks Mauro, The stunning set you made for my wife is exquisite thanks for the hasslefree purchase. I highly recommend you and I will use you again in the future, thanks again
Rania profile picture
Rania
06:31 16 Oct 25
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.
Georgia Lockwood profile picture
Georgia Lockwood
01:02 07 Oct 25
Mauro was exceptional in going above and beyond to fix an emerald that had been chipped, and also reconditioning the stone so it was better than before. And checked in afterwards to make sure we were happy with the end result. So happy to have found you and will certainly be back in the future. Thanks again!!
francesco cacciatore profile picture
francesco cacciatore
13:39 24 Aug 25
Atelier Diamant profile picture
Atelier Diamant
06:22 07 Aug 25
Jessica Berard profile picture
Jessica Berard
05:16 15 Jul 25
I bought a ring for a friend which is really amazing ! It was really easy to speak with Mauro even if we went far away from each other. He sent me the ring really quickly and I thank him for that !
Sam profile picture
Sam
12:35 30 May 25
We absolutely love the emerald pendant Mauro arranged for us! The stone is stunning, as is the pendant setting which he arranged to be made up for us (it reflects our requested design perfectly). We really appreciated Mauro's advice on emeralds which helped us to select the stone. Mauro went above and beyond at every stage, even posting the pendant to us when we could not meet up in person. Thank you, thank you!
tara ahmad profile picture
tara ahmad
01:50 29 May 25
Awesome experience. From selecting the stone to designing the ring and above all great price. Everything was exceptional.
sharad ekbote profile picture
sharad ekbote
11:33 26 May 25
I recently bought a beautiful emerald gemstone from Colonial Emeralds, initially Mauro had sent me a gemstone through post but when I physically saw it I wasn't entirely happy but Mauro was kind enough to take it back and sent me a different gemstone. He made sure that I was completely happy it. Mauro also provided a certificate of authenticity, assuring me of its natural origin, packaging was secure. If you're looking for high quality emerald gemstone, I highly recommend Colonial Gemstones.
C.A.P profile picture
C.A.P
03:38 13 May 25
I recently purchased a 20 year wedding anniversary ring for my wife from Mauro - Colonial Gemstones and I was very impressed by both the quality and craftsmanship of their pieces. The selection of gemstones is stunning, with a wide variety of colors and cuts to choose from. Also, the photography and videos Mauro produces are top quality and they add a special touch.

Mauro, is very pleasing to deal with, puts a lot of thought into creating something unique, he is knowledgeable and patient, he help me create the perfect piece for our occasion and on time.
My wife is now super happy with her Emerald ring, as it was exactly what she wanted.

If you're looking for exceptional quality and personalised service, I highly recommend Mauro from Colonial Gemstones.
Sandra Bermon (Queen of Opals) profile picture
Sandra Bermon (Queen of Opals)
03:28 12 May 25
I highly Recommend Mauro, and his business,
Incredible Quality and Value,
And TOP Customer service, he explained very clear tge different qualities and what was best for our projects.
We definitely will be back for more.
Luis Bolaños profile picture
Luis Bolaños
08:21 09 Apr 25
Bonnair profile picture
Bonnair
02:58 06 Apr 25
We had an incredible experience getting my custom emerald engagement ring created, and I couldn't be more thrilled with the final result. From start to finish, the customer service was exceptional. Mauro took the time to understand exactly what I wanted, offering expert advice and guidance on the design, stone selection, and overall look. He really listened to my vision and brought it to life in a way that exceeded my expectations.

Throughout the entire process, Mauro was communicative, patient, and attentive, making sure I felt comfortable and kept my fiancé informed every step of the way. The craftsmanship of the ring is flawless, and the emerald is absolutely stunning. It’s clear that a lot of care and attention to detail went into every aspect of the design.

We truly felt like a valued customers, and the experience made choosing this important piece so special. I highly recommend Colonial Gemstones to anyone looking for personalised, high-quality pieces and top-notch customer care. Thank you for making this process so memorable!
Gabrielle Seto profile picture
Gabrielle Seto
09:21 27 Feb 25
Mauro went over and beyond to help us find the perfect stone! Would highly recommend Mauro for his dedication to customer satisfaction and of course his absolutely stunning emeralds.
Tamara Gabay profile picture
Tamara Gabay
04:34 21 Feb 25
Great service and amazing prices reliable and professional will definitely buy again love my emeralds
Ruth profile picture
Ruth
23:19 18 Feb 25
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💚
EXTRAVIEWS 876 profile picture
EXTRAVIEWS 876
11:37 04 Feb 25
Great experience getting the most beautiful colombia emerald Jewellery from Colonial Gemstones.

Highly satisfied 👍!
Alexander N profile picture
Alexander N
08:21 15 Jan 25
Mauro was awesome from the beginning till the end of the whole process. He even sped things up to make sure I could get everything in time before I needed to leave the country.
If you're looking into buying/crafting something together with Mauro - don't look further and just do it with him. It's an incredible experience I can definitely recommend.
Andrew Hunter profile picture
Andrew Hunter
06:38 31 Dec 24
It was an amazing experience working with Mauro to pick an emerald and design a ring. He was very professional and kept in great contact to make the perfect ring, I would highly recommend him to others!
赖璟仪 profile picture
赖璟仪
02:09 11 Dec 24
The stone selection is very good. Have chance to see different quality stones. The design is detailed. The whole service is excellent
Tobias Binder profile picture
Tobias Binder
15:01 10 Sep 24
Nice help from Mauro he helped me as I Dont know if its real emerald
Cactus Jack profile picture
Cactus Jack
06:56 29 Jul 24
It was nice doing business with you Mr Mauro carvajal . Excellent quality Colombian 🇨🇴 emeralds and easy deal.
Frank Greco profile picture
Frank Greco
09:47 01 Jul 24
Mauro was a pleasure to deal with. Excellent communication and service.
Phil Milione profile picture
Phil Milione
02:18 28 May 24
Could not have been more happy with my experience with Mauro at Colonial Gemstones.

I recently bought an engagement ring for my partner from Mauro, and I would recommend him to anyone looking for high-quality jewellery and exceptional service.

From the first meeting, I was comfortable with his knowledge and authenticity. He was patient throughout the process, even when I asked for changes to be made. He was truly committed to getting the outcome that I desired.

The end product was a beautiful emerald ring that my partner loves.

Mauro, thank you very much mate. It was an absolute privilege meeting you and having you guide me through this process. I truly appreciate it.
Tom Neilson profile picture
Tom Neilson
11:47 20 May 24
Excellent experience. I really enjoyed selecting the stones and working with Mauro to achieve the desired design. The process is nice and quick from describing the design, to receiving the sketch, making minor tweaks and then making the ring.
The photo does not do the ring justice! In real life it sparkles and the deep green emeralds are nice and clear.
Thoroughly recommend!
.
Yvette Grant profile picture
Yvette Grant
03:22 27 Mar 24
I recently had the pleasure of experiencing Colonial Gemstones' impeccable service and genuine emeralds. I was blown away by their personable approach and will undoubtedly continue to purchase all my jewelry exclusively from them. I highly recommend Colonial Gemstones for their exceptional 5-star emeralds and unparalleled services.
Paula Walden profile picture
Paula Walden
01:03 18 Mar 24
Mauro is great to work with. His gemstones are high quality and very good value.
Rafael Lopez Buelvas profile picture
Rafael Lopez Buelvas
11:45 27 Jan 24
10/10 would recommend.
Me and my fiance are very happy with the ring we got from Colonial Gemstones. Mauro is super dedicated and special, he's incredibly thoughtful and helpful, all the process from picking the emeralds to handover of final product was very professional and timely.
Thanks so much Mauro for all your guidance and being so attentive.
Poney Chiang profile picture
Poney Chiang
16:48 10 May 23
I purchased emeralds from Colonial Gemstones to make a pair of earrings for my wife. Mauro, the owner was extremely approachable, generous with his knowledge. He was professional, direct and provided excellent customer service. I also needed his help to introduce me to a jewellery maker who can carry out my design. Mauro gave me very practical design suggestions and facilitated the transformation of the stones into stunning jewellery. I am an international client from Toronto Canada. Long distance business has it distinct challenges. However Mauro provided prompt communication. He gave me prompt updates throughout the whole design and making process. It was a genuine pleasure to work with him. I give Mauro my highest recommendation to anyone looking for Columbian emeralds. Testimonial aside, the most important thing is my wife was blown away by the end result. Happy Wife Happy Life as they say. Note: Photo can never recreate how great the earrings look with the naked eyes.

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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colombia emerald tour 2026

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 & Chivor.

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

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

Complete the details below to receive the full 10-day itinerary and professional pricing.

Limited spots available for 20th – 29th May 2026. This is an educational and cultural experience for true enthusiasts.