Does Diamond Nails in Castro Valley offer walk-in appointments?

Diamond Nails welcomes walk-ins, though availability can vary, especially during peak hours. For guaranteed service at a specific time, booking an appointment is always recommended. They strive to accommodate all customers, but appointments ensure dedicated attention.

Do you use disposable or sterilized tools?

Diamond Nails adheres to strict sanitation protocols. They utilize disposable tools whenever possible and meticulously sterilize all reusable implements after each service. Customer safety and hygiene are their top priorities; they follow industry best practices diligently.

How often should I get a fill for acrylics?

Generally, acrylic fills are recommended every two to three weeks to maintain their appearance and prevent lifting. This timeframe may vary depending on individual nail growth and lifestyle factors. Diamond Nails will assess each client's nails and recommend the best maintenance schedule for optimal results.

Diamond Nails

Nail salon in Castro Valley, United States of America

Rated 4.3 out of 5 based on 176 reviews on Google

About Diamond Nails

Over countless Castro Valley afternoons, one often notices the delicate scent of nail polish wafting from Diamond Nails. Inside, the rhythmic buzz of the e-file blends with soft chatter, creating a familiar, comforting soundscape. They've cultivated a loyal following around the manicure bar, a hub where regulars gather for quick touch-ups and detailed consultations. From the initial greeting to the final topcoat, they prioritize understanding each customer's vision.

What sets this local Nail salon in Castro Valley apart is their commitment to organic products. Diamond Nails invests in high-quality, gentle formulas, an attribute that appeals to brides-to-be and others seeking a healthier, more sustainable option. The staff's consistency also shines through; familiar faces greet returning customers, fostering a sense of trust and personalized care.

Diamond Nails has become a beloved institution in the community, earned by consistently delivering quality and adapting to evolving trends. Many appreciate their open communication and willingness to accommodate specific requests. The positive customer reviews reflect their dedication to exceeding expectations and creating beautiful, lasting results.

Customers can expect a comprehensive range of services. Diamond Nails provides classic manicures, long-lasting gel polish applications, and durable acrylic extensions. Pedicures, complete with soothing massages, are a popular choice. They also offer intricate nail art and restorative paraffin treatments, catering to diverse tastes and needs.

Diamond Nails Location & Contact

Address: 22158 Redwood Rd, Castro Valley, CA 94546

City: Castro Valley

Postal Code: 94546

Country: United States of America

Phone: +1 510-537-8865

Website: https://diamondnailscastrovalley.com/

Business Hours for Diamond Nails

Day	Hours
Monday	9:30AM-7PM
Tuesday	Closed
Wednesday	9:30AM-7PM
Thursday	9:30AM-7PM
Friday	9:30AM-7PM
Saturday	9:30AM-7PM
Sunday	10AM-6PM

Holiday Hours Notice for Diamond Nails

The dates below fall on public holidays. Many businesses observe modified or reduced hours on these days — we recommend contacting Diamond Nails directly to confirm their schedule.

Friday, June 19 — Juneteenth · Hours may differ from the regular schedule
Friday, July 3 — Independence Day (substitute day) · Hours may differ from the regular schedule
Saturday, July 4 — Independence Day · Hours may differ from the regular schedule

Based on the public holiday calendar for California, United States of America. Individual business schedules may vary — please verify with Diamond Nails before visiting.

Services & Amenities at Diamond Nails

Appointment required
Appointments recommended
Accepts walk-ins
Credit cards
Debit cards
Good for kids
Identifies as Asian-owned
LGBTQ+ friendly
NFC mobile payments
Onsite services
Restroom
Wheelchair accessible entrance
Wheelchair accessible parking lot
Wheelchair accessible restroom

Frequently Asked Questions About Diamond Nails

Does Diamond Nails in Castro Valley offer walk-in appointments?: Diamond Nails welcomes walk-ins, though availability can vary, especially during peak hours. For guaranteed service at a specific time, booking an appointment is always recommended. They strive to accommodate all customers, but appointments ensure dedicated attention.
Do you use disposable or sterilized tools?: Diamond Nails adheres to strict sanitation protocols. They utilize disposable tools whenever possible and meticulously sterilize all reusable implements after each service. Customer safety and hygiene are their top priorities; they follow industry best practices diligently.
How often should I get a fill for acrylics?: Generally, acrylic fills are recommended every two to three weeks to maintain their appearance and prevent lifting. This timeframe may vary depending on individual nail growth and lifestyle factors. Diamond Nails will assess each client's nails and recommend the best maintenance schedule for optimal results.

Local Tips for Visiting Diamond Nails

Social media is a great way to preview Castro Valley nail salon work before committing to an appointment.

Customer Reviews for Diamond Nails

Nicole Fong — 5/5 (via Google) May 4, 2026

I am SO happy that Kelly was able to take over this shop in Castro Valley! She has always been the best nail tech I've had, and she is also amazing at waxing eyebrows. Not to mention, she is the sweetest business owner you could ever meet. If you don't like something, she will help you until you are happy with the result. She goes out of her way to make you feel welcome every time. The rest of the team is very kind and professional, and the atmosphere just feels comfortable from the moment you walk in. The quality of work is great, and the services are reasonably priced. It's become my go-to nail place. Thank you for all that you do Kelly!

Kelly D — 5/5 (via Google) May 4, 2026

I love my nails! I went in and got a manicure. The new owner Kelly is so nice and welcoming! The new employee Linda did my nails. She was very kind and did very well at recreating my inspo picture. 10/10 Would go again and recommend to others!

Shannon Ly — 5/5 (via Google) May 4, 2026

I had such an amazing experience at this salon! It was my very first time getting my nails done, and Kelly was so patient and understanding. She took the time to explain the entire process to me. The salon itself looks so so nice and spotless. Kelly captured all the details I wanted and she truly went above and beyond what I asked for. She kept checking in to make sure I was happy with everything before I left. I’ll definitely make the commute from SF to Castro Valley just for Kelly!!

Harshleen Kaur — 5/5 (via Google) May 4, 2026

Really nice salon. They actually respect appointment times, since I have a busy schedule so this is very important to me. I usually get builder gel, which they do. Kelly did a great job of recreating my inspo for my choice of nail art. The shop is clean and relaxing. Overall 10/10 would go again.

Allison Lam — 5/5 (via Google) May 4, 2026

Diamond Nails just got a new regular! Kelly (the new owner) went out of her way to fit me into her busy schedule! Even living almost an hour away in San Jose, Diamond Nails is my new regular and no other salon has been able to beat the quality, service, and price! Kelly was so sweet and patient with my indecisiveness and explains every single detail to me. My nails came out even better than I expected because of her suggestions! I loved getting my nails done in such a clean and beautiful place from such experienced and kind ladies!

Customer reviews and ratings are sourced from Google Maps. View Diamond Nails on Google Maps ↗