Advanced Search
Your search results

The Diamond Agency

A Name You Can Rely On

There are many qualities and skills that go into being an excellent real estate professional – integrity, in-depth community and market knowledge, marketing savvy, effective negotiation skills and a high-quality professional network, all of which are hallmarks of how we work at The Diamond Agency. Our experience as real estate professionals has proven that providing the very best service is about putting clients first.

Learn More

Frank Cortes Real Estate Logo

Broker of Record

Francisco “Frank” Cortes approaches business the same way he approaches life – with integrity, honesty and most of all, by giving it all he has every day. The result is a whole new level of real estate service.

About Me

Real Estate Buying Icon


Whether you’re looking for your first home, your dream home or an investment property, we’re committed to providing you with the highest quality buyer service, market information and the very best advice.

Learn More

Real Estate Selling Icon


The decision to sell a home is often dependent on many factors. Whatever your reasons are for selling, our proven effective marketing strategies will ensure that you get the highest possible price for your home.

Learn More


Learn more about local communities from experts with experience in the area for over 90 years

Residential Real Estate Icon


We are a well versed award winning agency, on top of all present market conditions, and are prepared to continue to serve all your real estate needs.

Learn More

Commercial Real Estate Icon


We have been providing commercial real estate services for almost as long as Clifton has been on the map.

Learn More


#9943498 | Single Family Home
#3720335 | Single Family Home
#3682646 | Commercial
#3637042 | Commercial
#3707573 | Commercial
#3692277 | Commercial

The data relating to real estate for sale on this website comes in part from the IDX Program of Garden State Multiple Listing Service, L.L.C. Real estate listings held by other brokerage firms are marked as IDX Listing. Information deemed reliable but not guaranteed.
Copyright © 2021 Garden State Multiple Listing Service, L.L.C. All rights reserved.
Notice: The dissemination of listings on this website does not constitute the consent required by N.J.A.C. 11:5.6.1 (n) for the advertisement of listings exclusively for sale by another broker. Any such consent must be obtained in writing from the listing broker.
This information is being provided for Consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties Consumers may be interested in purchasing.
GSMLS (Agent IDX) data last updated at July 24, 2021 6:44 PM ET

All Listings


I want to express my compete satisfaction with the sale of my mom’s home in Clifton. Frank and the staff at The Diamond Agency went above and beyond my expectations – from listing and pricing, to sales, as well as numerous other services that we could not accomplish without his assistance. He is a true professional, energetic, motivated and a great negotiator. I would highly recommend him to my associates and friends and look forward to working with The Diamond Agency in the future.

-Diana R.

Our family is very thankful for having had Frank as our real estate agent. We found him to be a very caring individual who made sure our needs we met. I truly believe we would not have sold our house without his help. He is a very professional and efficient agent. Feel free to contact us in the future if you need more references.

-The Nobrega Family

I have used other agents from different agency’s and never did I have the assurance I had with Christine. She knows the area has contacts to recommend in the event you need some minor stuff done. The entire process from start to finish was smooth and she never pressured you. Honestly don’t procrastinate if you need the best call her. I will definitely use her again and recommend her to anyone who needs a top notch agent. You can see she is passionate about her job.

-Marianne Q.

Carlos was a pleasure to work with. He was professional, efficient, diligent, and he has the patience of a saint.  He was available to us whenever we needed him, worked around our varied work schedules to show us homes, and helped to point out things that as first time buyers, we were not aware of.   He helped us become smarted shoppers. Above all, we trusted him.  He is an honest person who truly wants the best for clients.  After about a year of searching for the perfect home, we found it and cannot be happier. We are very grateful to Carlos for his help and would recommend him highly!!!

-Mayelin R.

When we started looking for homes in Northern NJ, Barbara Ann was relentless in finding our dream home in Wayne. We had seen so many homes in other areas, and we knew this was the one that we fell in love with. Then it was time for Barbara Ann to list our home in Clifton; but we had a planned trip out of the country. But we were able to go on our travels worry free as Barbara Ann handled everything while we were away. In the end, we had our dream home and were able to sell our home. Without Barbara Ann, this would not have happened. There is no one out there that we would recommend more than Barbara Ann Stock

-Kathy and Manish

Ramon Ramos  has been very helpful . He explains all the  procedures in buying a house.  He takes you step by step and that make me more comfortable when I need to sign documents and making  decisions. It’s is great to have a person like Ramon Ramos on your side.

-R. Rivera

Compare Listings