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    Diamond #1 Nail Salon

    4.3 (215 reviews)
    Closed 9:30 am - 7:00 pm

    Services - Diamond #1 Nail Salon

    Haircut

    Manicure

    Manicure and pedicure

    Diamond #1 Nail Salon Photos

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    Recommended Reviews - Diamond #1 Nail Salon

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    Reviews With Photos

    Nail art

    [[HIGHLIGHT]]Everyone go see Selena! I started going to her over half a year ago in Redwood City. She moved here to union city and I HAD to follow her.[[ENDHIGHLIGHT]] These are my real nails and she helps keep them strong and looking beautiful! I always get compliments by people from her work. [[HIGHLIGHT]]She makes it feel like home when you go to her.[[ENDHIGHLIGHT]]

    Nail set

    I traveled from Redwood City to Diamond#1 Nail Salon in Union City. I've been getting my nails done by Selena for years now. Selena always does a great job on my nails and very thoughtful generous person to her clients. Selena does my nails by using silk. That has protected my nails from previously damaged sets. I highly recommend the Diamond nail salon. [[HIGHLIGHT]]The staff is very friendly always customer first[[ENDHIGHLIGHT]]

    Lumpy nails, uncleaned cuticles
    Miriam N.

    I barely leave ~bad~ review because I try to be as understanding as possible, but I think this review is warranted. I wanted to get my acrylic nails taken off and get gel. I called ahead to check if they had any openings that day and they told me to come in at 3:30pm. They called back saying to come in at 4pm instead. The signal was staticky so she couldn't hear me mention to add another person. When we got there, they were totally ok with taking in 2 people. There are only two nail technicians at all times. One of them was already working on someone. The other started working on me, or at least with the most focus she could give me at the time. I'm all for multitasking but this was pretty annoying. She was more so absorbed with her phone and instagram messages, which she accidentally set on vanish mode so she was freaking out about that. NAIL PROBLEMS: She started taking off my acrylic nails pretty aggressively. She kept pushing for me to get dip, maybe it was faster than gel. So I ended up getting dip. She didn't clean my cuticles at all. Another customer came in, and all of a sudden she started saying ~out loud so the customer can hear~ to tell them next time if there are two customers coming. I told her I tried telling her on the phone, and realized that they were happy to take both of us and they didn't have to say yes when we came in. I just bit my tongue so maybe she wouldn't make me bleed like the other technician did to my sister. Back to my nails: She didn't ask me what shape I wanted, I had to tell her. I'm not sure what she was planning to shape my nails if I didn't say anything. My nails came out super lumpy because she was rushing the whole time. No attention to detail. Not relaxing at all. I just wanted it to be over. Last but not least, paid $105 for 2 dip manicures. Waste of money imo. It sucks because this was my sister's first time getting her nails done and it wasn't the best. Time to never come back here.

    Dip power with gel tips.
    Linda G.

    Ever since I found a new favorite boba shop (Sunright Studio) I will find any excuse to be in Union City. I set an appointment with Amy day of and was ready for a little self-care. Got a Pedi and dip powder/gel tips mani. (which turned out super cute). Even after my vacay, my nails are holding on strong. Going on my 3rd week actually. Amy was super sweet and attentive. She was really easy to talk to which help the time pass by. The prices are pretty affordable here so I will definitely be returning.

    Luna B.

    Love holly! she does my nail all the time and never disappoints. my set last a long time with out breaking/chipping or rhinestones falling off. she does good quality work for the cost she charges love her work thank you holly for always getting my nails right

    Fill with design
    Christina D.

    First time here with my two girls we each got Phils with designs. Total cost was 150 without tip. Pricing is pretty reasonable, considering going cost of other places. Most don't include the designs in their pricing Holly does. She has all the modern up today trending designs, colors and charms. The location is within a little small shopping center pretty convenient close the freeway hours or later than most show actually stood over an extra hour just to get us completed because we hit traffic and got there an hour late we didn't leave her shop until 8 PM. She takes her time does quality work. She even pointed out how my filing of my nails previously had been filed to slant the the left. ‍. Will be back again and I highly suggest you checking her out. She makes appointments walkins, the whole nine. I'm not one to sit here and critique about pricing, you get what you pay for you. If you want quality the shell out the cash for this women's artistic quality work. I hear a lot of people on her reviews complain about pricing, but her pricing is fair for the quality she does.

    Victoria R.

    Amy is so nice! She did my pedicure today. Great massage too! I'll definitely be back.

    Ridha A.

    The employees worked fast with precision. I would DEFINITELY come back here again!! I showed them an image for reference and they servers c:

    Color 72 or 73 dip powder, cleaned cuticles, and nail design
    Elizabeth-Marie J.

    Really enjoyed my experience here! Holly and I had a great conversation & she an amazing job on my nails. 10/10 recommend.

    Amy did a wonderful job on my nails. Totally recommend this place. Great service and friendly staff.
    Lolita M.

    I am pleased every time I go here. Amy is very creative and artistic. I think my nails speak for themselves. Her prices are great and honestly I've been everywhere so I feel I can say this.

    Full set ombré pink to white
    Reyna C.

    I went here last weekend and got a full set w Amy (I believe). I was able to get an appointment asap, I called on my way in and I live down the street. It was clean and everyone was spread out. Amy was really friendly and attentive. The nails are not lumpy or thick at all. Very clean and thin shape. I got these a week ago and so far so good no lifting.

    Very good service, like myself more after going there...
    Sucharita N.

    I have been going Holly for 8 years. She is very caring, professional, loving person. I am doing waxing, pedicure, manicure. She is very good and suggests me what is best for me.

    All my toenails were like this or worse.

    Service received: Gel pedicure and mani. I called for a gel pedi and mani; they were able to take me because they weren't busy at all. Results of the pedi were not superb. The paint edges near the cuticles weren't painted cleanly. Changes the look of my toe nail shape.

    Nails Done by Holly

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    Page 1 of 6

    Ask the Community - Diamond #1 Nail Salon

    Review Highlights - Diamond #1 Nail Salon

    Went in to get a pedicure and manicure couldn't recommend anyone better than Holly she will get you right before the holidays!!!

    Mentioned in 84 reviews

    Read more highlights

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    I first met Kayla back in 2018 when she was still working at a different salon. As a busy working…read moremom, it's hard for me to find time for self-care, and getting my hair done every 3 months is usually the only thing I make time for. Because I don't get many opportunities to relax, I truly appreciate every appointment with Kayla. She's so gentle that I almost always end up taking a quick nap while she's doing my hair! My favorite part is when she washes my hair. Her amazing head and neck massage is such a relaxing treat. One thing I really love about Kayla is that she knows how to read her clients. She lets me enjoy the quiet and doesn't fill my time with unnecessary small talk like some salons do. Those few peaceful hours are exactly what I need. That's why I've stayed with her all these years and even followed her when she opened her own salon. I've also trusted her with my mom, my husband, my two boys, and several friends. They all love her work, and I always get compliments on my hair. On top of that, her salon is always clean, welcoming, and beautifully maintained. She's also incredibly thoughtful and always offers coffee or a drink to make her clients feel comfortable. My only advice: book your appointment well in advance because she's that good--and she's almost always fully booked!

    So in love with my cut by Kayla!! Amazing service, she is so talented and I plan to return every…read morequarter for a touch up. I asked for a ton of layers and referenced her signature layer cut that everyone is raving about. With shampoo, cut and blow out, I think I paid about $120. Kayla is worth every last dollar!! Huge parking lot, easy in and out, hassle free. Will 1000% be back and see Kayla

    Photos
    Mushroom brown
    Mushroom brown
    Ash mushroom brown
    Ash mushroom brown
    Neutral mushroom brown

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    Neutral mushroom brown
    Salon Valenti

    Salon Valenti

    4.8
    (606 reviews)
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    I've been to this salon twice and I've enjoyed my experiences both times. The lobby is small and…read morewelcoming. Pauline was my stylist both times. She had some helpful recommendations for my haircut. Additionally she was helpful and recommended some products to help me get the most out of my haircut!

    Not having done anything to my hair in over 30 years, I decided to take the plunge and get a vivid…read moreturquoise/blue. I chose to have Cam as my stylist since I had learned she was really good with vivid colors. So for my session, I got a luxe all over bleach (I had black hair to start) with haircut/styling and a vivid refresh (color). Cam spent a lot of time listening and understanding what I was after and also asked many good questions so that we could have the right understanding about what I wanted to achieve. She explained every step of the way and even made sure I was comfortable at all times, even when lowering the footrest of the hair wash station (every time!) I felt very comfortable with the process because she was able to anticipate what my concerns were - she reassured me and help me understand what to look out for, particularly the aftercare. Overall, I had a fantastic experience with Cam/Salon Valenti and I definitely will be going back for touch ups and future work. Thank you Cam!

    Photos
    Dimensional balayage by Gary
    Dimensional balayage by Gary
    Soft contrast and a seamless blend 
This balayage refresh from Gary keeps the grow-out low-maintenance and the result, absolutely stunning!
    Soft contrast and a seamless blend This balayage refresh from Gary keeps the grow-out low-maintenance and the result, absolutely stunning!
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    Diamond #1 Nail Salon - hair - Updated August 2026

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