Diamond Nail & Spa

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<title>Diamond Nail &amp; Spa | Nail Salon in San Jose · reviews &amp; AI Score · Local AI Registry</title>
<meta name="description" content="Diamond Nail is a nail salon in San Jose, CA. It's rated 4.4 on Google from 181 reviews. Named by 0 of 1 AI assistants.">
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<meta property="og:title" content="Diamond Nail &amp; Spa · AI Score 26 of 100 · Poor">
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# Local AI Registry

> The public record of what AI assistants say about local businesses. Every entry checked, scored, and kept current.

Local AI Registry is the editorial, never-sponsored record of what local
businesses are known for, and whether AI assistants actually recommend them.
We score every local business the same way and rank them: website, reviews,
AI visibility, and more. Eight signals, one number from 0 to 100. The heaviest
is whether AI can retrieve you at all.

## Read these first

- [Local AI Registry](https://localairegistry.com): AI assistants now decide which local business to recommend.
- [Methodology](https://localairegistry.com/methodology): Eight signals, one number from 0 to 100.
- [Leaderboards](https://localairegistry.com/leaderboards): Browse AI Score leaderboards by state, city, and category.
- [About](https://localairegistry.com/about): The honest record of who AI recommends.
- [Pricing](https://localairegistry.com/pricing): Four levels of presence, from a free registry entry to being the answer AI gives first in your market.
- [Journal](https://localairegistry.com/journal): How AI assistants decide which local businesses to recommend, and what owners can do about it.

## Business pages

- [Sitemap](https://localairegistry.com/sitemap.xml): Every business page on the registry, with the day each was last updated.
- Every business page has a markdown copy at its own address with `.md` on the end. The copy holds the same facts, marks and sources as the page, in the page's order: the photos with their captions, the team and their licenses, the reviews summary, and the questions locals asked with the replies. The page names it in its head and its HTTP `Link` header.

# Diamond Nail & Spa, San Jose: a nail salon in San Jose (2026 guide)

Source: Local AI Registry, https://localairegistry.com/biz/ca/san-jose/diamond-nail-and-spa-san-jose-ca. Free to reuse with a link back.

By Steve Lee, founder and CEO of Local AI Registry. Fact-checked against 1 source. Updated 2026-09-23. Owner review: not yet.

Canonical: https://localairegistry.com/biz/ca/san-jose/diamond-nail-and-spa-san-jose-ca

## Photos

- ![Photo 1](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmuel1kjr0s4qyeiqvsyy3yes%2F0.jpg)
- ![Photo 2](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmuel1kjr0s4qyeiqvsyy3yes%2F1.jpg)
- ![Photo 3](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmuel1kjr0s4qyeiqvsyy3yes%2F2.jpg)
- ![Photo 4](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmuel1kjr0s4qyeiqvsyy3yes%2F3.jpg)
- ![Photo 5](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmuel1kjr0s4qyeiqvsyy3yes%2F4.jpg)


## In short

Diamond Nail & Spa is a nail salon in San Jose, CA. Its AI Score is 26 of 100, which is poor.

Every fact on this page carries one of three marks: Confirmed (from their website, Google Business Profile, review sites, licensing boards, or measured by Local AI Registry), Visitor submitted (added by a person, with a date and how they know), or AI guess (what AI engines like Gemini are saying, not confirmed by anyone). Every mark points to a reference at the end of this page.


## Key facts

| Fact | Value |
| --- | --- |
| Type | Nail salon |
| Address | 5205 Prospect Rd #120, San Jose, CA 95129, USA |
| Hours | Mon to Fri 9:30 AM to 8 PM · Sat to Sun 9:30 AM to 6 PM |
| Phone | (408) 255-2870 |
| Owner | Nothing found |
| Rating | 4.4 across 181 reviews |
| Known for | Nothing found |
| Prices | Nothing found |
| Quietest time | Monday |
| Parking | Nothing found |
| Last verified | September 23, 2026, 1:55 PM |


## All the details

Every row is something the owner can add or correct. Each one is marked Confirmed, Visitor submitted or AI guess, with where it came from.

| Group | Fact | Value | Mark | Evidence |
| --- | --- | --- | --- | --- |
| Location info | Name | Diamond Nail & Spa | Confirmed | Google Business Profile, checked Sep 23, 2026 |
| Location info | Address | 5205 Prospect Rd #120, San Jose, CA 95129, USA | Confirmed | Google Business Profile, checked Sep 23, 2026 |
| Location info | Phone | (408) 255-2870 | Confirmed | Google Business Profile, checked Sep 23, 2026 |
| Location info | Hours | Mon to Fri 9:30 AM to 8:00 PM · Sat to Sun 9:30 AM to 6:00 PM | Confirmed | Google Business Profile, checked Sep 23, 2026 |
| Location info | Description | Diamond Nail & Spa is a well-established nail salon. We offer high quality services at affordable prices. For many year, we maintained high ratings on Yelp and Google. Come to see us and treat yourself with our relaxing, quality services | Confirmed | Google Business Profile, checked Sep 23, 2026 |
| Hours | Monday | 9:30 AM to 8:00 PM | Confirmed | Google Business Profile, checked Sep 23, 2026 |
| Hours | Tuesday | 9:30 AM to 8:00 PM | Confirmed | Google Business Profile, checked Sep 23, 2026 |
| Hours | Wednesday | 9:30 AM to 8:00 PM | Confirmed | Google Business Profile, checked Sep 23, 2026 |
| Hours | Thursday | 9:30 AM to 8:00 PM | Confirmed | Google Business Profile, checked Sep 23, 2026 |
| Hours | Friday | 9:30 AM to 8:00 PM | Confirmed | Google Business Profile, checked Sep 23, 2026 |
| Hours | Saturday | 9:30 AM to 6:00 PM | Confirmed | Google Business Profile, checked Sep 23, 2026 |
| Hours | Sunday | 9:30 AM to 6:00 PM | Confirmed | Google Business Profile, checked Sep 23, 2026 |
| Links | Website | https://www.mydiamondnailspa.com/ | Confirmed | Google Business Profile, checked Sep 23, 2026 |


## Services and prices

Services not read yet, back on Scan Day.


### Known for

None of the 5 reviews we've read names a service yet.


## The team

Nothing found


## Visiting Diamond Nail

Address: 5205 Prospect Rd #120, San Jose, CA 95129, USA. Phone: (408) 255-2870. Hours: Mon to Fri 9:30 AM to 8 PM · Sat to Sun 9:30 AM to 6 PM. (Confirmed, Google Business Profile, checked September 23, 2026 at 1:55 PM.)


### Location info from Google Business Profile

Business description, written by Diamond Nail on its Google Business Profile: "Diamond Nail & Spa is a well-established nail salon. We offer high quality services at affordable prices. For many year, we maintained high ratings on Yelp and Google. Come to see us and treat yourself with our relaxing, quality services"


### When to go

Quietest day: Monday. Busiest day: Friday. From the popular times on its Google listing.


### Parking and getting in

Nothing found


### Nearby

Nearby places not read yet, back on Scan Day.


## Reputation

4.4 average across 181 reviews.


### What people like

Nothing found


### What people do not like

Nothing found


### Press

No press story about Diamond Nail found yet.


### Awards

None named yet.


### Directories

Directory listings not read yet.


## Recent updates from Diamond Nail

Diamond Nail hasn't posted an update here yet.


## Questions people ask


### where does this salon post updates

No answer yet


### anywhere on Prospect to sit while I wait

No answer yet


### Does Diamond Nail split it over a few months?

No answer yet


### stopping by on a Sunday, will they be open

No answer yet


### anything I should sort out before a first appointment here?

No answer yet


### bad experiences at Diamond Nail, anyone?

No answer yet


### prices round here, anyone got a number

No answer yet


### do regulars get anything here

No answer yet


### Street parking near here, any good?

No answer yet


### how far out is Diamond Nail booking right now?

No answer yet


### regulars here, who do you book with?

No answer yet


### best nail salon in San Jose, CA

No answer yet


### Busiest day at Diamond Nail in San Jose, anyone know?

No answer yet


### Diamond Nail, any chance to book in this week?

No answer yet


### budget options in San Jose, what is decent

No answer yet


### picking between the two, is Charisma Nails the safer bet?

No answer yet


### worth it or not, what do the regulars say

No answer yet


### What happens on a first visit here?

No answer yet


## What AI gets wrong about Diamond Nail

We ask Gemini about Diamond Nail. These are the answers that disagree with the record.

Gemini, read by Local AI Registry on Sep 23, 2026.

No capture has disagreed with the record yet.


## The AI Score: 26 of 100

The AI Score measures how likely AI engines are to recommend a business, and how accurately. San Jose nail salons run 21 to 56. Fair starts at 45, good at 65. Diamond Nail scores 26, below the San Jose average of 31. The same method scores every business on the registry.

| Signal | Weight | Score | What it measures | Diamond Nail |
| --- | --- | --- | --- | --- |
| Retrieval grounding | 26 | 0 | Whether you appear in the ranked results AI retrieves and cites: AI-Overview citations, organic top-10 for your money queries, and the Bing index ChatGPT leans on. | Poor |
| Off-property attestation | 20 | 41 | Volume and consistency of what others say about you: YouTube mentions, branded web mentions, third-party “best-of” lists. The cause of retrievability. | Poor |
| AI visibility | 14 | 0 | Whether ChatGPT, Gemini, Perplexity, and AI Overviews name you, and whether they name you for the right service. | Named in 0 of 1 answer that recommended anyone. |
| Reviews & response | 12 | 81 | The star average is only one input. We also read volume, velocity, the specificity of review language, and response cadence. Specific reviews are what AI quotes verbatim. | Good |
| Backlink & citation authority | 8 | 53 | Domain authority and editorial quality of the sources that attest to you. | Fair |
| Google Business Profile | 8 | 90 | Required and recommended fields; update cadence. The listing AI pulls from first. | Good |
| Speed & mobile | 7 | 55 | Core Web Vitals at the 75th percentile, on a real phone. | Fair |
| Content freshness & schema | 5 | 50 | Crawl recency, intent alignment, valid JSON-LD, canonicals. | Fair |

Full method: https://localairegistry.com/methodology


## How AI decides what to tell you about a nail salon

When you ask ChatGPT, Gemini or Google about a local business, the AI doesn't visit it. It reads what's already written about it: the business's website, its Google Business Profile, review sites, news stories and directories like this one. Then it repeats what those sources agree on.

That's why AI gets small facts wrong. If Yelp says a place is open Mondays and the website says it isn't, the AI has to pick one. The table above shows the answers that disagree with the record today.

The more sources agree, and the more specific they are, the more confidently AI recommends a business. A review that names who helped and what they did tells an AI far more than one that says "great place."


## How to choose a nail salon in California, with or without AI

A few checks take ten minutes and tell you more than any rating.

- Check that the hours and phone number match on Google, Yelp and the business's own website. Mismatches are how people end up at a locked door.
- Read reviews that name a person and what they did. Vague praise is easy to fake.
- Look for recent reviews and recent posts. A page nobody has touched in a year may not match the business today.
- Ask for the price before you go, and ask what it includes.
- Where the work needs a license, ask whose license it is and look it up with California.


## How to read the marks on this page

- Confirmed (solid circle): from a known source. The business website, its Google Business Profile, review sites like Yelp, Healthgrades and RealSelf, a licensing board, or measured by Local AI Registry.
- Visitor submitted (hollow circle): added or corrected by a person, with the date and how they know, like a phone call or a visit.
- AI guess (hollow triangle): what AI engines are saying right now. Nobody has confirmed it.


## About the author

Steve Lee is the founder and CEO of Local AI Registry and sets its editorial standards. He is a former Google executive in Search and a former Microsoft executive, with more than 20 years in digital: search, local discovery, and how people find businesses online. He is based in Irvine.

- Expertise: search at Google and Microsoft, AI search, answer engine optimization, generative engine optimization, local SEO, structured data and entity mapping.
- Industry: medical aesthetics, injectables, med spa operations and marketing.
- Disclosure: Local AI Registry sells services to business owners, including Diamond Nail if it claims this page. That does not change what this page says. Every fact carries its source.


## Entity map

Every person, place, organization and treatment named on this page, with a stable ID and a public reference. The JSON-LD below connects them to each other.

| Entity | Type | ID on this page | Same as | Relationship to Diamond Nail |
| --- | --- | --- | --- | --- |
| Diamond Nail & Spa | LocalBusiness | #business | https://www.mydiamondnailspa.com/ | Subject of this page |
| San Jose, California | City | #city | Nothing found | City Diamond Nail is in |
| Local AI Registry | Organization | #publisher | https://localairegistry.com | Publisher of this page |
| Steve Lee | Person | #author | https://localairegistry.com/team | Author of this page |


## Topical map

Where this page sits in the registry. It's one profile among the nail salons in San Jose, linked to the lists and towns around it.


### Lists

- Best nail salons in San Jose: https://localairegistry.com/leaderboards/ca/san-jose/nail-salon
- Best businesses in San Jose: https://localairegistry.com/leaderboards/ca/san-jose


### Nearby

- /los-angeles: https://localairegistry.com/leaderboards/ca/los-angeles
- /san-francisco: https://localairegistry.com/leaderboards/ca/san-francisco
- /san-diego: https://localairegistry.com/leaderboards/ca/san-diego
- /irvine: https://localairegistry.com/leaderboards/ca/irvine
- /fresno: https://localairegistry.com/leaderboards/ca/fresno
- /palo-alto: https://localairegistry.com/leaderboards/ca/palo-alto


### Every list

- Every leaderboard in California: https://localairegistry.com/leaderboards/ca


## Frequently asked questions


### What is AI search optimization for local business?

Getting a business named when a neighbor asks ChatGPT, Gemini, or Perplexity for a recommendation. Some call it AI SEO, some call it generative engine optimization. Traditional SEO fights for ten blue links; this fights for the one answer an assistant says out loud. The AI Score on this page measures the eight signals that drive it.


### What is Local AI Registry?

The public record of how AI sees local business. We score every business we list by one published method, we keep the questions people ask about it in one place, and we never sell rank. Looking up any business here is free.


### How does this page help a business get recommended by AI?

Assistants read public pages before they answer. This one states what the business does, what people ask about it, and what the Record answers, in one place a machine can read. Correcting what is wrong here changes what an assistant repeats next.


### Who writes the answers here?

Registry AI writes the first answer under every question, from the Record and the public sources named beneath it. Neighbors write the rest under pseudonyms. A registered owner can reply as the business, and their reply says so.


### I own Diamond Nail & Spa. How do I fix something or rank higher?

Register the page. It is free, it takes about five minutes, and it lets you correct the Record and reply as the business. Nothing on this page is for sale, so the only thing that moves the score is the work.


## References


### Sources cited

- [1] Google Business Profile, https://www.google.com/maps/place/?q=place_id:ChIJufz3a6rKj4ARjyHSytmOWWY (accessed Sep 23, 2026)