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julio collazos profile picture
julio collazos
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Amazing work on my engagement ring very friendly service. Ty for the work
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Jessica Jones profile picture
Jessica Jones
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I had a wonderful experience selling my jewelry! The entire process was easy, professional, and stress freeI felt comfortable throughout the whole experience and was very happy with the offer I received . Everyone was friendly, honest, and knowledgeable. I would definitely recommend them to anyone looking to sell their jewelry. I will absolutely be back!
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K Price profile picture
K Price
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Great experience! Igor is very knowledgeable about his products. Fast, secure delivery. I am now a customer for life.
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John Costello profile picture
John Costello
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Buying an expensive watch online is scary considering the extensive network of scammers out there. I took every precaution I could before I purchased a Rolex from Igor at Diamond Source NYC. All said and done, Igor did everything he promised. He is honest, responsive and very respectful. Upon receipt of the watch it was exactly as described. Beautiful, unworn and 100% authentic. This guy can find anything you’re looking for. Thanks Igor.
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Deborah Chang profile picture
Deborah Chang
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Took a good amount of time to assess what I had and gave me top dollar matching and exceeding another estimate. They even allowed me to watch them count the cash given to me. I would come back to work with them again.
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Jeruel Trinidad profile picture
Jeruel Trinidad
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My overall experience in my first ever purchase of a luxury watch from Diamond Source NYC is nothing but a thrilling and exemplary experience. From inquiry to shipping, Igor has been outstanding in helping me from video inspection of the watch to next day shipping to my address. Most of all, I received a lovely watch, excellent like-new condition , excellent packing, and the watch itself is truly authentic complete with box and papers.
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Joseph Dalto profile picture
Joseph Dalto
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Igor is a good guy and has good business. If you want a watch this is the place to go to.. talked with multiple people to source a watch I wanted and he took care of me and was able to be competitive to everyone else’s prices. He is in it for the long term relationship opposed to trying to make the most off of someone initially. He’s earned a long term customer for life and will be getting every future watch from him. Look forward to growing the collection and having someone I know will not take advantage and will get me the best piece for the best price!
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Anelisa San Lorenzo profile picture
Anelisa San Lorenzo
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Igor is the best jeweler in nyc!
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Jason Smith profile picture
Jason Smith
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Outstanding Shop! Purchased a custom luxury watch and it was seamless. Igor's the man...quick sourcing, great communication and impeccable quality. I highly recommend these guys.
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Rolex Datejust 31 Reference 178240 Pre-Owned & New | NYC Diamond District

Questions? Call (212) 730-5959 or visit us at 20 W 47th St, Suite 401, New York, NY

Located in the heart of the Diamond District, Diamond Source NYC has established itself as the premier destination for luxury timepieces by prioritizing transparency, expert curation, and a client-first philosophy.

Our deep roots in the New York watch market allow us to offer an unmatched selection of authentic Rolex watches, ensuring that every customer receives a piece that has been rigorously vetted for quality and provenance. By combining competitive pricing with the personalized service of a boutique showroom, we remain the most trusted name for collectors and first-time buyers seeking excellence in Manhattan.


The Aesthetic of the Smooth Bezel

The Rolex 178240 is characterized by its 31mm Oystersteel case and its high-polished smooth bezel. This specific design choice offers a minimalist and modern alternative to the traditional fluted bezel, making it an ideal choice for those who prefer a watch that is elegant yet understated. The seamless transition from the bezel to the case creates a cohesive look that highlights the craftsmanship of the Oystersteel finish.

Precision Engineering and Movement

Under the dial, the reference 178240 is powered by a high-precision self-winding mechanical movement. This caliber is a certified Swiss chronometer, having passed the Official Swiss Chronometer Testing Institute (COSC) tests. It features a rapid-setting date function and a stop-seconds feature for precise time setting, providing the reliability and durability that the Datejust collection has been known for since 1945.

Versatility in Dial and Bracelet

One of the primary appeals of the 178240 is its versatility. It is available with various dial colors including silver, blue, and pink, often accented with Roman numerals or classic index markers. Furthermore, the watch can be paired with the robust three-link Oyster bracelet or the more formal five-link Jubilee bracelet. Both options feature the Rolex Easylink extension system, allowing the wearer to adjust the bracelet length by approximately 5mm for maximum comfort.

Investment and Longevity

The Datejust 31 in steel is regarded as a stable investment within the luxury watch market. Because it bypasses transient fashion trends in favor of a timeless silhouette, the 178240 maintains its value exceptionally well over time. Its construction from 904L steel ensures it can withstand the rigors of daily use while maintaining its luster, making it a true heirloom-quality timepiece.