Ideal Cut Diamonds
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Ideal Cut Diamonds
There is a story inside every stone we sell, one that only the most experienced jeweler can bring to life. For more than 30 years, we've taught our customers how to choose the perfect diamond without sacrificing quality for size or convenience. The Diamond Source is built on trust and tradition, whether you are buying online or in person.

The Diamond Source protects our customers, saving you time and money by carrying only ideal cut diamonds - stones perfectly proportioned to allow the maximum reflective light. If you're not a jewelry expert, that's okay. We are. We have the knowledge, experience, and commitment to service to guide you during your search for the perfect stone, and help you make the best possible selection.
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Marco Levy's lifelong love for diamonds began in Israel at age 14, when the young Marco developed an interest in cutting and repairing stones. A distinctive talent within the highly specialized business of fashioning rough stones into stunning, finished diamonds.

Having established his overseas reputation therefore Marco moved to the United States, working alongside expert jewelers in New York City until he relocated to the west coast and established The Diamond Source.Since opening in Old Town San Diego, The Diamond Source has catered to a global family of customers looking to match life's biggest moments with one of Marco's stones or custom designs.
How a diamond is cut - regardless of shape - is the key to a quality stone. The shape is determined by personal taste, and you should always choose the shape you love, but the ideal cut is one only The Diamond Source experts can see. Diamonds are often cut to maximize weight, not brilliance as we know that every part of a diamond must be cut to exact mathematical proportions in order to achieve maximum fire and brilliance.
Beloved for their beauty and treasured for their rarity, naturally colored diamonds are among the most coveted gemstones in the world. Natural fancy color diamonds occur when different trace elements are present in the diamonds. For example, nitrogen is responsible for the yellow color in diamonds.
The birthstone dates as far back as the first century when it was believed that there was a link between the twelve months of the year and the twelve stones in the breastplate of Aaron, the high priest of the Hebrews - as referenced in the Book of Exodus. Birthstones are also said to correspond with the 12 symbols of the Zodiac.
There is eternal beauty and uniqueness in something born from one's imagination. At The Diamond Source, we specialize in making reality from whatever you imagine. Our custom design process allows you to see how it happens every step of the way, whether you envision a design with newly purchased stones or want to stones from an older piece of jewelry.
Reviews (11)
Daniel Larsen
Daniel Larsen
Dec 31, 2021
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A hidden gem😉 among a sea of tourist attractions. We purchased two rings from them. A wedding ring for myself and a sapphire solitaire my wife. The service and friendliness was great. We didn't feel the sales pressure like other stores. For my wife's solitaire, she wanted a light pink sapphire, which was rather rare. They looked for a stone for us for months before we found right right one. The family run vibe is great compared to the high-end chains!
Alexandra Volp
Alexandra Volp
Aug 27, 2021
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Fanny and team were phenomenal and a true class act! Amazing service, stunning pieces and I plan to go back when I am in San Diego.
David R. Frey
David R. Frey
Apr 20, 2021
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The creative works here are simply magnificent. High quality, specialty items and custom products that shimer and shine brightly. Good place to go for an engagement ring, anniversary item, or just because you like to find an admirable items made with spectacular artwork for precious memories.
Hal Van Horn
Hal Van Horn
Dec 20, 2020
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I have been going to this store for 25 years and they've always been great customer service is awesome and they have awesome jewelry and they stand by everything they sell I just bought my wife a beautiful necklace for a 24th anniversary
Rand
Rand
Dec 05, 2020
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We have done business with Diamond Source twice SO FAR. We had such a great experience the first time that I called Marco from out of state and ordered another custom ring for Valentines day. It is beautiful! She loves it. Marco is a master at his craft.
Helen Storey Carrasco
Helen Storey Carrasco
Aug 10, 2020
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We have been going here for years. They have beautiful, quality jewelry. I highly recommend Doamond Source! The gems & Diamonds are top quality. Very sparkly! So much to choose from. Yet not the waist of money bad quality you find at mall Kay or Zales. There is just no comparison. If you are investing in a piece you plan on wearing the rest of your life, it should be one you can be proud of. Just what you will get at the Diamond Source!
Yarin Katz
Yarin Katz
Jan 01, 2020
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Great place to buy! Very high quality, big inventory and great service. Love to go there every time!
Mark Beach Realtor Mark Beach Realtor
Mark Beach Realtor Mark Beach Realtor
Nov 16, 2019
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Fantastic jewelry store! I grew up here in San Diego listening to Marco’s radio commercials on the school bus. When it came time to buying an engagement ring for my wife, I went to all the major ring stores first to get an average pricing and design concept. But it was when I went to The Diamond Source, that I could tell the night and day difference. I was able to speak directly with Marco, and designed my wife’s ring with him! The ring was more beautiful, was built with better quality (Platinum over White Gold) and even had clearer Diamonds, and to make it all better, the ring cost way less
Mateusz Golonka
Mateusz Golonka
Sep 23, 2019
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Most beautiful diamonds I have ever seen. Very friendly and knowledgeable staff. I couldn't be happier. They even call from a private number when the ring was ready to make sure my lady didn't find out.
Leann Regert
Leann Regert
Aug 19, 2019
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Everything is unique and beautiful. Got my wedding ring here and come back for cleanings and prong check. They are always the kindest people ever!!
Teresa Burmil Menke
Teresa Burmil Menke
Aug 17, 2019
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My engagement ring and new 10 yr anniversary ring is from here... see David !