Here2Win Casino · Greentube · Australia
Jewels and Gems pokie on Boomerang Pokies
Australian punters can open the session page for Jewels and Gems pokie apart from this catalogue.
On Boomerang Pokies, Jewels and Gems is the Greentube pokie Australian players launch through Here2Win Casino. The studio name and the game name are the hard facts on this page. A catalogue page is not a tip.
What this pokie is
Boomerang Pokies sends you out and back: read Jewels and Gems here, play it at Here2Win Casino, return to the same URL if you want the figures again. The pokie itself does not boomerang a loss into a win.
Before the stake, use the fact list and the pros and cons. Neither one adds a star rating. Jewels and Gems is the Greentube pokie, and the reels run at Here2Win Casino.
The fact list repeats the studio, the volatility and the RTP so a search snippet and the page agree. Do not average one short session against a published RTP.
Diamond Tales The Little Mermaid Bonus Buy shares a studio with this card, and so does Diamond Mystery Rising Joker. Both are Greentube.
The studio behind it
If you only needed the maker, it is Greentube. Here2Win Casino does not rebadge the game. The provider page is the clean list.
Studio certification & mechanics
Greentube (Novomatic AG Group) is an iGaming studio founded in 1998 and headquartered in Vienna, Austria. Its random number generators (RNG) and math models are audited by GLI, eCOGRA, TÜV Austria and certified across MGA, UKGC, AGCO (Ontario), ADM, DGOJ, GGL. Studio RTP policy: Standardised theoretical RTP profiles (~95.00%–95.50% classic mathematical model).
In the Boomerang Pokies catalogue, Greentube accounts for 419 pokies, playable at Here2Win Casino. Across the 135 titles with a published return, the studio averages 95.05% RTP (spanning 92.13% to 96.45%, with 0 pokies at 96.5% or above). Signature studio mechanics include Book-style Expanding Scatter, Lock & Spin, Twin Spinner, Gamble Ladder.
Technical layout for Jewels and Gems: 5×3 / 5×4 HTML5 video grid paired with Standard studio payline / ways structure, running natively in HTML5 across desktop, iOS, and Android browsers at Here2Win Casino.
Expanding Symbols: Expanding symbol mechanics select one or more pay symbols that stretch vertically to cover the full reel when enough instances land.
Gamble Feature: The Gamble feature offers an optional post-win double-up or risk ladder round after standard base-game payouts.
At Here2Win Casino
Here2Win Casino is the casino on this card. Beside Jewels and Gems the provider page lists 419 other Greentube pokies, all played at Here2Win Casino.
Published figures & technical specs
- Studio
- Greentube (419 in this catalogue)
- Features
- Expanding Symbols and Gamble Feature
- Studio average RTP
- 95.05% (across 135 titles)
- Reel grid
- 5×3 / 5×4 HTML5 video grid
- Pay structure
- Standard studio payline / ways structure
- RNG testing labs
- GLI, eCOGRA, TÜV Austria
- Studio licences
- MGA, UKGC, AGCO (Ontario), ADM, DGOJ, GGL
- Platform
- HTML5 (Desktop, iOS & Android)
- Play at
- Here2Win Casino
- Stake
- A$
- Card updated
- 2026-10-29
Session math & RTP benchmark
Jewels and Gems does not carry an individual published RTP on its source sheet, so no single-title percentage is guessed. Across the 135 Greentube titles that do publish a return in this catalogue, the studio average is 95.05% (ranging from 92.13% to 96.45%). For a balanced session at Here2Win Casino, a bankroll buffer of 200x–250x the A$ unit stake suits this pokie's profile.
| Session volume | Total turnover | Theoretical return | House margin | Est. winning spins |
|---|---|---|---|---|
| 100 spins (A$1/spin) | A$100 | A$95.05 | A$4.95 | ~27–33 |
| 250 spins (A$1/spin) | A$250 | A$237.63 | A$12.38 | ~68–83 |
| 500 spins (A$1/spin) | A$500 | A$475.25 | A$24.75 | ~135–165 |
Pros and cons
Pros
- Greentube is on the card, not buried in a lobby.
- The play button stays on boomerangpokies.com and then opens Here2Win Casino.
- Greentube has 419 pokies in this catalogue.
Cons
- This page is a catalogue. It does not hold an A$ balance.
- A match amount is not a fact of the Jewels and Gems card.
- No published RTP is on this card, so none is guessed.
- Volatility is not on the source card.
How this pokie compares
| Title | Studio | Published RTP | RTP delta | Volatility | Grid |
|---|---|---|---|---|---|
| Jewels and Gems (this card) | Greentube | — | — | — | 5×3 / 5×4 HTML5 video grid |
| Jingle Jackpot · Highest RTP in Greentube | Greentube | 96.45% | — | medium | 5×3 / 5×4 HTML5 video grid |
| Eye of the dragon · Higher-volatility studio alternative | Greentube | 96.12% | — | high | 5×3 / 5×4 HTML5 video grid |
| Book of Bonanza · Same mechanic (Expanding Symbols) | SmartSoft | 97.60% | — | medium-to-high | 5×3 classic video grid |
Explore head-to-head comparisons → · Session bankroll calculator →
More from Greentube
Who it suits
This card does not carry a volatility mark, so Boomerang Pokies does not guess who Jewels and Gems suits. The studio is Greentube. The session still opens at Here2Win Casino.
How a session behaves
Coming back to Jewels and Gems later does not make it due. Keep the A$ stake where you left the rule.
Same pokie, different Saturday. Walk away while the stake in A$ is still a choice.
Questions
Where do I open Jewels and Gems if I am in Australia?
Jewels and Gems is in the Boomerang Pokies list for Australia, and the session itself runs at Here2Win Casino. Use the play button rather than hunting the game by a different name.
What provider is behind Jewels and Gems?
Greentube is the studio named on the Jewels and Gems card. Boomerang Pokies groups the rest of that studio on the provider page.
Is this page the casino, or a catalogue?
Boomerang Pokies is a catalogue. The stake in A$ is placed at Here2Win Casino after you follow the play button. This page does not hold a balance.
Does Jewels and Gems work on mobile in Australia?
Punters in Melbourne mostly open Jewels and Gems from a phone. Boomerang Pokies does not ship a separate app. The button hands the pokie to Here2Win Casino.
Is Jewels and Gems staked in A$?
You choose the A$ stake after Here2Win Casino loads Jewels and Gems. This catalogue page never takes the money.
Can I try Jewels and Gems here without an account?
No. Boomerang Pokies does not embed a demo of Jewels and Gems. The button opens the pokie at Here2Win Casino. Any practice mode, if one exists, is inside that account, not on boomerangpokies.com.
Why is there no star rating for Jewels and Gems?
No score is printed on purpose. A star would be a house opinion. The page sticks to the studio, the published RTP when the card has one, and the volatility label.
Can Jewels and Gems be due for a win?
Nothing on this page is a timer for a feature. If the last session went badly, the next one does not owe you the difference.
How old do I have to be to play Jewels and Gems?
The page is written for adults in Australia. Gambling can harm. Stop when the session stops being a choice.
Where does the click on Jewels and Gems go?
Boomerang Pokies records the page you were on and sends you to Here2Win Casino with Australia already on the trail.
How many Greentube pokies are in this catalogue?
Boomerang Pokies lists 419 pokies from Greentube for Australia. Jewels and Gems is one of them. The provider page holds the rest.
Does it matter that I am in Melbourne?
Sydney or Perth sees the same card. The only local pieces are the language, the A$ stake and the payment names such as PayID.
Does this page list a welcome offer?
No figure is invented here. If Here2Win Casino shows a welcome offer, it shows it inside the account, with its own terms. Read them there before you opt in.
Is this the same machine I would find in a club?
No. Jewels and Gems on Boomerang Pokies is an online pokie opened at Here2Win Casino. It is not a machine on a club floor and it does not carry a local sticker.
How do I stop a session on Jewels and Gems?
A normal stop is the one you decided in advance. Do not wait for the pokie to look due.
Why is there no RTP for Jewels and Gems?
No estimate is offered. An invented RTP would make the catalogue worse. The studio is still Greentube, and play is still at Here2Win Casino.
Why does Jewels and Gems have a pros and cons list?
It splits what the card publishes from what Boomerang Pokies refuses to invent. A printed RTP is listed because it is a source figure. A missing hit rate is named as a limit, not filled in.
What should I read before I open Jewels and Gems?
Start with the short answer under the title, then the fact list. Both should agree: studio Greentube, and RTP only when the card has one. The pros and cons repeat that split in plain lines.
How do I open the right Jewels and Gems?
This page is only Jewels and Gems. The play button follows that name, not a shorter guess.
How many reels and paylines does Jewels and Gems have?
The card does not publish a maximum win, a reel count, or a payline count. Boomerang Pokies does not guess them.
What features does the Jewels and Gems card list?
The labels are Expanding Symbols and Gamble Feature. They are names only. This page does not add a bonus amount, a free-spin count, or a jackpot figure.
Stake and the cashier
Leaving for Here2Win Casino is the payment step. Boomerang Pokies does not hold a POLi or PayID balance in between.
The A$ stake is chosen inside Jewels and Gems at Here2Win Casino. A catalogue can name PayID and still not run PayID.
How you open it
- Open Jewels and Gems from the play button. The click stays on boomerangpokies.com, then Here2Win Casino loads the pokie.
- Set the stake in A$ before the reels move. A smaller stake just makes a pokie last longer.
- Stop on a clock you set in Melbourne, not when the pokie 'looks due'.
Filed under
Features Expanding Symbols Gamble Feature
Playing this pokie
Open the full name Jewels and Gems in the Here2Win Casino lobby. This page is only the Jewels and Gems card.
The card does not publish a maximum win, a reel count, a payline count, a count of free spins, or a bonus-buy price. Boomerang Pokies leaves those fields empty.
Australian punters play this pokie in the browser at Here2Win Casino, stake in A$. No app is installed from Boomerang Pokies.
Feature labels on this card: Expanding Symbols and Gamble Feature. A label is a name, not a price and not a description of the round.