Gem
Listed as "Gem – Multipurpose Responsive Shopify Theme"
Gem is a Shopify theme by Ennop ($49). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 43 for mobile speed and 62 for desktop speed, 96/96 for SEO and 74/74 for accessibility (mobile/desktop, 0–100).
Mobile31
Desktop50
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 43 | 62 |
| SEO | 96 | 96 |
| Accessibility | 74 | 74 |
| Best practices | 81 | 85 |
Single preset · measured 4 times since 2026-09-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Gem – Multipurpose Responsive Shopify Theme home page
Mobile
Speed 31 · 69 points to gain
- −24.5 Largest Contentful Paint medium effort
- −24.3 Cumulative Layout Shift medium effort
- −11.4 Total Blocking Time medium effort
- −4.8 Speed Index medium effort
- −4 First Contentful Paint medium effort
- 750 ms Reduce unused CSS high effort
Accessibility 78 · 22 points to gain
- −4.8 Elements with an ARIA `[role]` that require children to contain a specific `[role]` are missing some or all of those required children. medium effort
- −3.3 Elements with `role="dialog"` or `role="alertdialog"` do not have accessible names. medium effort
- −3.3 ARIA input fields do not have accessible names medium effort
- −3.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.3 `<html>` element does not have a `[lang]` attribute low effort
- −3.3 Links do not have a discernible name medium effort
Best practices 69 · 31 points to gain
- −19.2 Uses third-party cookies high effort
- −3.8 Serves images with low resolution low effort
- −3.8 Browser errors were logged to the console medium effort
- −3.8 Issues were logged in the `Issues` panel in Chrome Devtools high effort
Desktop
Speed 50 · 50 points to gain
- −24.3 Cumulative Layout Shift medium effort
- −18.3 Total Blocking Time medium effort
- −6.3 Largest Contentful Paint medium effort
- −1.5 Speed Index medium effort
Accessibility 78 · 22 points to gain
- −4.8 Elements with an ARIA `[role]` that require children to contain a specific `[role]` are missing some or all of those required children. medium effort
- −3.3 Elements with `role="dialog"` or `role="alertdialog"` do not have accessible names. medium effort
- −3.3 ARIA input fields do not have accessible names medium effort
- −3.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.3 `<html>` element does not have a `[lang]` attribute low effort
- −3.3 Links do not have a discernible name medium effort
Best practices 73 · 27 points to gain
- −19.2 Uses third-party cookies high effort
- −3.8 Browser errors were logged to the console medium effort
- −3.8 Issues were logged in the `Issues` panel in Chrome Devtools high effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Gem – Multipurpose Responsive Shopify Theme default demo ↗ | 43 | 96 | 74 | 62 | 96 | 74 | 2026-09-12 |
| category ↗ | 54 | 92 | 70 | 74 | 92 | 70 | 2026-09-12 |
| home ↗ | 31 | 100 | 78 | 50 | 100 | 78 | 2026-09-12 |
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<a href="https://themestested.com/theme/shopify/tf-gem-multipurpose-responsive-shopify-theme-20519434"><img src="https://themestested.com/badge/shopify/tf-gem-multipurpose-responsive-shopify-theme-20519434.svg" alt="Gem speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.