[ JEWELS-GEMS · 105 titles · NEUTRAL · repriced September 2026 ]
Jewels & Gems slots.
Diamonds, sapphires, emeralds. High-shine art and cluster-pay mechanics. Often paired with progressive jackpots. NEUTRAL Mixed catalog around the industry baseline — some CLAIM-tier titles inside, but the theme average sits at typical variance and typical RTP. Filter by RTP band below for the wagering-friendly slice.
| RTP band | Titles | Theme share | What it means at jewels & gems |
|---|---|---|---|
| ≥ 97.5 % | 4 | 3.8% | Highest-RTP paytables inside this theme. |
| 96.0 – 97.49 % | 52 | 49.5% | Industry baseline paytables at this theme. |
| 95.0 – 95.99 % | 28 | 26.7% | Just below baseline — often buy-feature ceilings. |
| < 95.0 % | 21 | 20.0% | Legacy or aggressively variant-shipped titles. |
Top 48 jewels & gems slots
RTP 98.00% 
RTP 98.00% 
RTP 97.50% 
RTP 97.50% 
RTP 97.49% 
RTP 97.30% 
RTP 97.10% 
RTP 97.04% 
RTP 97.00% 
RTP 96.95% 
RTP 96.69% 
RTP 96.59% 
RTP 96.59% 
RTP 96.57% 
RTP 96.56% 
RTP 96.55% 
RTP 96.53% 
RTP 96.51% 
RTP 96.50% 
RTP 96.50% 
RTP 96.50% 
RTP 96.50% 
RTP 96.48% 
RTP 96.47% 
RTP 96.43% 
RTP 96.40% 
RTP 96.36% 
RTP 96.34% 
RTP 96.30% 
RTP 96.30% 
RTP 96.30% 
RTP 96.29% 
RTP 96.26% 
RTP 96.20% 
RTP 96.19% 
RTP 96.19% 
RTP 96.16% 
RTP 96.16% 
RTP 96.15% 
RTP 96.12% 
RTP 96.12% 
RTP 96.12% 
RTP 96.10% 
RTP 96.09% 
RTP 96.08% 
RTP 96.04% 
RTP 96.03% 
RTP 96.02% Showing top 48 of 105. Filter the full slots catalog for the complete list, or cross with an RTP tier to narrow further.
Jewels & Gems · FAQ
What counts as a jewels & gems slot?
A slot is classified into the jewels & gems bucket when its published title or studio description matches the theme keyword set at build time — no proprietary tags, no manual curation. 105 titles land here today (2.0% of 5 350 indexed releases). Refreshed September 2026.
Is jewels & gems a good theme for bonus wagering?
Mixed catalog around the industry baseline — some CLAIM-tier titles inside, but the theme average sits at typical variance and typical RTP. Filter by RTP band below for the wagering-friendly slice. Verdict at build time: NEUTRAL. The mechanical reason: wagering-through is a race between your bankroll and the sample cost of the paytable. Theme is cosmetic; the axes that actually matter are RTP (mean edge per €100 wagered) and volatility (standard deviation of that edge). This theme averages 95.66% RTP at a medium-vol dominant, hence the NEUTRAL bracket. Filter by RTP band above for the wagering-friendly slice.
How is the volatility mix computed?
Each title carries a studio-published volatility rating on its info panel — we normalise to a five-band scale (low → high) using each studio’s certification test. The dominant volatility for jewels & gems slots is medium, and the theme-wide average sits at 3.38 on the 1–5 index. See the volatility & variance guide for the distribution math and the medium-vol hub for the full band catalog.
What bankroll does a jewels & gems session need?
The theme is cosmetic — the bankroll floor is a function of volatility, not aesthetic. Dominant volatility here is medium; a medium-vol session typically needs a bankroll of 300–500× base bet to keep ruin probability under 5% through a wagering multiplier. Use the Portfolio Builder to model your bonus against this variance band.
How do I combine jewels & gems with an RTP filter?
Theme is one axis, RTP is another — they compose freely. Cross this hub with highest-RTP (≥ 97.5%) for the calmest wagering path inside the jewels & gems bucket, or with high-RTP (≥ 96%) for the widest baseline shortlist. The RTP-band breakdown above shows exactly how many jewels & gems titles fall into each bracket at the current build.
Where does the theme keyword set come from?
Provider JSON-LD didn’t yield useful genre metadata across the catalog, so themes are keyword-detected from title and description at build time using a curated regex per theme. That’s the reason the jewels & gems hub can be inspected line-by-line: no black-box classifier, no scraping heuristic — the keyword set is in src/lib/themes.ts in the repo. New themes and keyword tweaks land alongside catalog refreshes.
18+. Theme classification runs at build time (September 2026) from studio titles and descriptions using a keyword regex — no black-box classifier and no proprietary tag feed. RTP and volatility figures inside the theme are aggregated across every matched title in the current build; a specific release inside the theme can sit anywhere in the band. The wagering verdict is derived from the theme-wide RTP-and-volatility average and is a heuristic, not a per-title guarantee. Always verify the info panel for RTP variant and volatility rating in-client before any deposit against a wagering balance.