Mike W.
4/24/2025
Our appointment began on time with Ms. Chau Ngo. We appreciated her extensive knowledge of my watch and my wife's ring. She was very personable and answered all our questions. Highly recommended.
World Gemological Services
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(77)
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120 Tustin Ave Ste F
Newport Beach, CA 92663
World Gemological Services, based in Newport Beach, CA, offers a range of professional jewelry appraisal services. With over 20 years of experience, GIA certified gemologists provide diamond ring, diamond, gemstone appraisals, and luxury watch identification.
Founded by Michael Cortez, a GIA Graduate Gemologist and third generation jeweler, the company initially started as Gemological Services of Southern California in 2000. Expanding to form World Gemological Services, the team now caters to clients worldwide, utilizing cutting-edge equipment and advanced evaluation techniques.
Committed to accuracy, confidentiality, and excellent customer service, World Gemological Services strives to deliver the best appraisal experience for a diverse range of customers, from individual clients to large corporations.
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Reviews
5.077 reviews
Rouzbeh K.
2/7/2025
I went for appraisal for my Rolex watch mis chau very professional thanks for your time and your nice work
Estefania V.
7/22/2025
Chau was so helpful and knowledgeable about a rolex watch we took in and explained everything she was doing. Recommended 100%
Dev S.
8/15/2024
Came to get my Rolex appraised before a sale. The girl appraising was very young and seemed inexperienced. She looked at my watch under a microscope for a bit and said she couldn't find a crown...
Hei N.
6/13/2024
I came to the World Gemological Services after a referral from an official Rolex store. I met the staff members there who were very friendly, especially the owner Mike Cortez. I like how they did...
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