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The Diamond Center

4.4 (71 reviews)
Closed 10:00 am - 6:00 pm

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Response time

2 hours

Response rate

100%

Services - The Diamond Center

Jewelry cleaning

Jewelry redesign

Jewelry repair

4 More Services

Jewelry reshaping or resizing

Jewelry restoration

Jewelry stone setting

Watch cleaning

The Diamond Center Photos

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Recommended Reviews - The Diamond Center

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Reviews With Photos

oh la la ;)
Van D.

The Diamond Center is located in the heart of Claremont Village at the cross street of Yale and Second. They are family owned and operated by the Lantz family since 1972 and they are known for having the best quality diamonds, including the perfectly cut internationally known Hearts on Fire Diamonds. My friend and I were walking around the Claremont Village when we decided to stumble in. My friend has been with her boo for over 8 years so it is time for some subtle hints!! Or maybe some not so subtle hints. We immediately disclosed that we were just in the area browsing for fun, but Ray was still incredibly friendly and welcoming. He had a warm personality that you can only find at a mom and pop shop jewelry shop. My friend had never gotten her ring finger sized before... UNTIL NOW!! Hint Hint if Andrew is reading this, MT's ring size is a size 4!! Ray welcomed us to the fancy Bridal ring section where we were thoroughly informed about diamonds and the 4 Cs - carrot, cut, color and clarity. The quality of the diamonds here at the Diamond Center are really on point. They are in the 80th percentile plus in quality. The FUN PART was where we sat there for about an hour trying on a bunch of rings. I am always going with my friends on their ring journeys, but this is the most welcomed I felt during the process. The large jewelry stores can be intimidating or unwelcoming based on my previous experiences. My friend and I both felt so comfortable with Ray's guidance and we both found rings we loved!! I didn't mean to... but... yeah... I caught feelings for the bling bling. To all the guys out there, *ahem ahem* specifically Andrew, The Diamond Center has ZERO INTEREST FINANCING FOR 12 MONTHS!! Woo hoo :) You can budget and make appropriate monthly payments, and it'll be paid off in no time. They have great warrantee plans here too where you can come back for resizing, cleaning, other needs, as long as you don't completely lose the whole ring. Ray was so helpful, he even texted us a few pictures of the favored ring selections. We feel comfortable to ask additional questions as they come up. The service here is incredible! I highly recommend The Diamond Center. They will do their best to customize your jewelry to fit your preferences and 'budget.'

Bezel set Diamond Solitaire necklace in white gold
K R.

The Diamond Center is my family jeweler even after moving to the east coast. I called and described what I was looking for, and after a couple of text messages, I was perfectly happy with my purchase. The Diamond Center safely packaged and mailed my purchase.

Gracie T.

Ray is amazing!!! My fiancé had been looking at engagement rings since April 2019(?) and quickly found the one he wanted for me. He contacted Ray, since the ring was in stock at the store. They both remained in contact. Fast forward January/February 2020, my fiancé asked Ray if they had the ring in a round halo (originally, he was looking at cushion halos). Ray stated he was able to get it in a decent amount of time. My fiancé made a trip to the Diamond Center, which is located in the heart of downtown Claremont, and worked with Ray in customizing the engagement ring. On May 2020, my fiancé proposed to me! The ring was too big on my finger (size 6.5) so I wanted to get it resized ASAP. Because of COVID, Ray was taking appointments only. We went into the store (this was my first time setting foot into Diamond Center) and the store is just absolutely beautiful! I might be a little biased as the store is royal purple and purple is my favorite color. We explained to Ray that the fit of the ring was too big for me and he had me try on each sizer ranging from size 5-6. I put on size 5.5, which was still a loose, tried on the 5 and it was snug. Ray could tell that I wasn't comfortable with a 5 and he had me try on the 5.25 and without hesitation, he said this is a perfect fit! Enough room for the summer and the winter, it'll spin very little. Normally, I like my rings to fit a little loose since I was afraid I would gain weight in the future. However, Ray reassured me that a 5.25 is just perfect, given my ring is top heavy. I was there contemplating for a while going back from a size 5 to 5.25 and 5.5. Then I just went with my gut and didn't want to question Ray too much as he is an expert on this and has been doing this for so many years. Knowing that Ray didn't hesitate in telling me that a 5.25 is perfect, it provided me with a lot of comfort and ease. Because my ring is unique, he explain exactly what he will have to do with the ring so that we were fully aware. Ray stated that it would take 2 weeks for my ring to be done. Obviously, I was a little sad to part ways with my engagement ring but seriously, this is such a first world problem compared to what's been happening in this world with COVID. However, I got the ring earlier than expected and was so happy! It was such a nice surprise. I went to go pick up the ring and it was the PERFECT FIT!! Enough room for the summer when my fingers swell up! Even though it is cold/warm weather now, I have enough gap space but my ring does not spin. It only does when I run it in extreme icy cold water, but who does that?! I inspected the ring and I couldn't tell it was cut. The gold melted perfectly together (rose gold and white gold), which made me even happier as my ring's band is quite unique. My experience with Ray in the Diamond Center was so calming, respectful, and easy! He took the time to answer all my questions and he let me know that my fiancé really took the time and effort to make my customized ring perfect. Ray and my fiancé worked together very well and we are thankful for Ray's patience and expertise. We'll be stopping by here a little later this year to look at wedding bands. Now, more than ever, it is essential to me that we support small businesses during this time. Once again, thank you for everything!!!!

Moms hand: left, natural grown diamond, right, Lab Grown Diamond comparison
Jon D.

Working on getting a ring made with zero understanding of what to research. Ray and his team helped me pick out the best diamond for my project and all his staff was so accommodating. Easy to communicate with and meet the same energy as I had each visit. Love them

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Congrats, Audrey! We loved being part of your big day. Cheers!

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Thanks for the great review, Cheery! We love being your jeweler.

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11 years ago

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8 years ago

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Thanks fo much Maureen! We’re honored to be your family jeweler.

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Ask the Community - The Diamond Center

Hello. I have family jewelry that I would like to appraise. Is that possible ? Thank you.

Hi. Happy to help with your jewelry appraisal. There are a few types of appraisal based on your goal- insurance, selling the items, just finding out some info. Please reach us at ray@lantzdiamondcenter.com to schedule an appointment as we have… Read more

Do you buy Diamond earrings?

Hi Theresa. Yes, bring them in and we’ll evaluate and make an offer. I’m the only buyer so I have to be in- my up coming schedule is - in today and next week in Tues, Thurs, Fri, Sat. Thanks! Ray

View All 3 Questions

Review Highlights - The Diamond Center

Ray and his team helped me pick out the best diamond for my project and all his staff was so accommodating.

Mentioned in 22 reviews

Read more highlights

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California Gold & Silver Exchange - We pay top prices for your yellow and white gold jewelry, including 10k, 14k, 18k, 21k, 22k, & 24k. We also buy mismatched and broken items.

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You're at the right place. CALIFORNIA GOLD AND SILVER paid us 30% or more than CROWN gold exchange…read more CROWN wanted to pay only 60 % of gold spot price. (Whatta Rip.) Thank you Maria at California Gold and silver gold Silver. She paid us 1300.00 more off my sale of 70 grams of 14K gold scrap

The only reason I am giving one star is because yelp would not allow me to move forward. My husband…read moreand I walked in to appraise our gold and silver jewelry. As soon as we walked in Maria's energy was off. The vibe felt intense and her greeting didn't appear sincere. There was a disabled lady with her granddaughter or toddler child. The lady moved forward and was immediately told by Maria to get back and allow privacy for the customer she was working with. It appeared that Maria, the employee was annoyed with the lady and the toddler. Then, it was horrifying to hear the man that works across from Maria, who was working with a white couple. Thw male employee had the audacity to tell the Asian disabled lady, "We also have things back here that you might steal!" I was in disbelief and disgusted with his unnecessary, unprofessional comments. It appeared that the disabled lady was being bullied before our eyes. Most importantly, we left after waiting for 40 minutes because we couldn't get over how they treated the disabled lady. They appeared to be racist because they didn't treat a vulnerable customer with respect and dignity.

Jeweler's Touch - Our store is now in Brea!

Jeweler's Touch

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I reached out on Yelp asking multiple jewelers about medium thick chains for memorial necklaces…read moresince we want something durable. Guy from Jeweler's Touch stood out in his quick responses and helpfulness. When we arrived that evening to speak to someone, Brandon was amazing. He was friendly, super patient, and explained everything. He understood how difficult it was to look for rose gold chains, especially when thicker too. I was super indecisive and he gave me all the time in the world to look through their gold book which had all kinds of designs and thickness scaled to life size so I could place my pendant on it to imagine how it would look. He also brought out samples of chain types as I picked out ones to see if I'd like the look in person. He ended up finding an estate gold chain that looked absolutely perfect for my husband's pendant in shine and style. We tried it for a few days (they give you 30 days hassle-free) and my husband knew it wasn't the right length of style for his personal preference and our tuggy toddlers within one day. It was gorgeous and I wished it worked out, but maybe not for us. We came back a few days later after Christmas Eve and Brandon helped me out again with the return and gave me suggestions for the length of my husband's necklace based on preference. I saw people coming in and out during the two times I went and I see why. These people are amazing, patient, knowledgeable, super friendly and not pushy at all. They want to help make happy customers who are looking for that perfect jewelry. Although we are still on the search for the "perfect" chain for each of us (we are not major jewelry people but need this to be just right for us in every way), I appreciate the help that Jeweler's Touch gave and would recommend them for anyone looking for a custom piece or specific jewelry services.

I brought my engagement ring in to get fixed and they were great! Monique was so helpful and the…read moreturn around time was so fast! I picked up my ring and it was perfect and SO SHINY!!!! thank you guys!

4 C's Finecraft Jewelers

4 C's Finecraft Jewelers

(26 reviews)

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I can't say enough wonderful things about this jewelry store! The jeweler is an absolute magician…read more I brought in my wedding ring set, which had been through several poor repairs elsewhere, and he worked pure magic to bring it back to life. The attention to detail, craftsmanship, and care that went into fixing my rings were beyond my expectations -- they look even better than when they were new! It's rare to find someone so talented and trustworthy in this industry. I highly recommend this store to anyone needing jewelry repair, custom work, or something special. They truly care about their customers and the quality of their work shows in every sparkle. If you're looking for a jeweler who can do it all -- and do it right -- this is the place to go! Thank you Nazo! I'm forever grateful!

4 Cs Finecraft Jewelers does everything right with - cut, color, clarity, and carat. They do an…read moreabsolutely absolutely stunning job. Fine craftsmanship and excellent customer service. When you're going to drop some money on some jewelry that will outlast a lifetime, rest assured that you will find that and more here. When you come in here, you'll feel like family. And you'll want to keep coming in here so they make sure your stones are set and they want to be updated on how you've been! My husband was assisted my Margie who is the sweetest woman ever. Their fine craftsmanship is exhibited through the thoughtfulness and the care that they take with each customer. My husband was so sweet that he wanted me to create a special and unique engagement ring. My husband and the jeweler were so specific in the details -- they took the idea and brought it into full fruition, even talking about making sure that the stones are set well and sturdy since Im a nurse and work with my hands a lot. I really appreciate those fine details because I want to wear my ring and not just hide it or use it for " special occasions". I'm so proud to wear my wedding ring especially since it was so thoughtful and intentional from the start. Location: located in the sweetest part of downtown Claremont, with a small town charm full of elegance. This sweet shop you can find surrounded by cafes and mom and pop stores that have been there for years. Trust me, you'll want to make a brunch/ lunch date out of this visit because it's so cute. This store has new custom made and antique jewelry available. It is so sweet as we usually come on the weekends and the owner and the jewelry designer/ goldsmith? I'm not sure what you call him but you see him hard at work most of the time. It's pretty cool. Theyll have the answers to you questions and can bring your vision to life. You have a budget? They'll work with you. Also, they love taking care of their product so I come in for a free ring cleaning ( my husband had his custom designed, too! ) to make sure that your ring is always looking brand new and in pristine condition. Thank you for making these special rings for us! We love them and love you guys!

The Diamond Center - jewelry - Updated May 2026

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