What Does
Brisbane Treasure?

1. Public nominations Members of the public nominate eligible Brisbane treasures across five categories.
2. 50 shortlisted nominees Ten nominees are shortlisted in each category.
3. Five category winners The judging panel selects one category winner from each group of ten.
4. One randomly selected major prize contender One of the five category winners is randomly selected to participate in the final challenge. That participant is guaranteed a $5,000 Xennox Diamonds gift card if unsuccessful in winning the diamond.
5. Final treasure challenge The selected participant receives one opportunity to choose a key, envelope or other designated item from 50 options. Exactly one option is the winner.
6. Four other category winners Each receives a $2,000 Xennox Diamonds gift card.

Chance of winning the diamond in the final challenge

1 in 50

2% probability

Chance for each of five category winners to win the diamond

1 in 250

0.4% probability, assuming equal random selection

The diamond winner receives the diamond, the included bespoke jewellery experience and the proposed first year of Q Report insurance, subject to policy eligibility. The $5,000 consolation gift card applies only if the final participant does not win the diamond.

Revised prize wording for the terms and conditions

Brisbane Treasures 2026

Prize Structure, Selection and Verification

1. Major Prize

The Brisbane Treasures promotion offers one eligible participant the opportunity to win an Argyle-certified Australian pink diamond with an advertised retail value of AUD $50,000.

The proposed diamond is a natural, round-cut, 0.14-carat Argyle pink diamond, graded 5P colour and SI clarity.

The Promoter may substitute the specified diamond where reasonably necessary due to availability, with a diamond of equivalent or greater substantiated retail value and comparable quality, subject to applicable law and any required insurer approval.

*The diamond prize is not guaranteed to be awarded.* It will only be awarded if the eligible participant successfully completes the final prize challenge.

The diamond prize is not redeemable for cash, exchangeable, refundable or transferable.

2. Bespoke Jewellery Design and Manufacturing

If the diamond prize is won, the winner will receive a personal jewellery design consultation with Karl Schwantes of Xennox Diamonds.

The winner may collaborate with Xennox Diamonds to design a suitable piece of jewellery incorporating the pink diamond, such as a ring, pendant or earring.

The prize includes up to AUD $2,500, inclusive of GST, towards design, craftsmanship, labour, gold and other standard manufacturing materials.

Any additional diamonds, gemstones, precious metals, design elements or manufacturing requirements exceeding this allowance will be quoted separately and must be approved and paid for by the winner.

The diamond must be incorporated into a finished piece of jewellery as part of the prize experience. The winner cannot elect to receive the loose diamond instead.

No unused portion of the manufacturing allowance may be redeemed for cash, store credit or other goods.

3. Jewellery Insurance

The major prize also includes the proposed provision of 12 months of jewellery insurance through Q Report for the completed jewellery item incorporating the pink diamond.

The Promoter will pay the first year’s premium, subject to the winner meeting Q Report’s eligibility, underwriting and policy requirements.

Coverage, exclusions, excesses and other conditions will be governed by the insurer’s applicable policy documentation.

4. Nomination and Judging

Eligible members of the public may nominate Brisbane treasures across five categories.

Following verification, the Promoter intends to shortlist 50 eligible nominees, comprising ten nominees in each category.

The independent judging panel will assess the shortlisted nominees using the published judging criteria and select one category winner from each category.

Each category winner must be an eligible adult or, where the nominee is an organisation, place, institution or other non-individual nominee, have an approved adult representative.

5. Selection of the Major Prize Contender

The five category winners will each have one equal opportunity to be selected in a supervised random draw.

One category winner will be selected to participate in the final major prize challenge.

Selection as the major prize contender does not guarantee that the participant will win the pink diamond.

6. Final Prize Challenge

The selected major prize contender will receive one opportunity to choose from 50 designated, visually indistinguishable options, only one of which will produce the winning result.

The final mechanism may involve keys, sealed envelopes or another independently supervised selection method, to be confirmed and published before the competition commences, subject to insurer approval and applicable law.

The participant may make one selection only. Once made, the selection is final.

If the selected option produces the winning result, the participant will receive the $50,000 pink diamond prize and associated benefits, subject to verification and these terms.

If the selected option does not produce the winning result, the diamond prize will not be awarded.

The final challenge will be supervised by an authorised representative of the Promoter and an independent witness. The process will be recorded, and appropriate verification records retained.

7. Consolation and Category Prizes

The selected major prize contender will receive a $5,000 Xennox Diamonds gift card if unsuccessful in the final diamond prize challenge.

Each of the other four category winners will receive a $2,000 Xennox Diamonds gift card.

These gift cards are separate from the conditional major diamond prize and are not dependent on the final challenge being successful.

Gift cards are subject to the applicable Xennox Diamonds gift card terms and conditions and Australian Consumer Law.

8. Institutional and Non-Individual Winners

Where a category winner represents a business, institution, landmark, organisation, cultural work or Brisbane tradition, an authorised adult representative must be nominated and approved before the final selection.

If such a nominee wins the major prize, the representative will accept the prize on behalf of the nominated entity or its legally authorised custodian.

The prize may be used for an approved charitable fundraising purpose, including a fundraising activity supporting a charity selected by the authorised representative, subject to the Promoter’s prior written approval, applicable fundraising laws, insurer requirements and the non-transferability provisions of these terms.

The identity of the legal prize recipient and the proposed charitable arrangement must be documented before the final prize challenge.

9. Verification and Finality

The Promoter reserves the right to verify eligibility, identity, authority to represent a nominee and compliance with these terms.

Any suspected fraud, tampering, interference or material breach may be investigated.

The Promoter will maintain appropriate records of the judging, random selection and final challenge to support the integrity and transparency of the promotion.

Nothing in these terms excludes rights or remedies that cannot lawfully be excluded under Australian law.