The short answer: not always, but sometimes you should
Diamond welcomes walk-ins when capacity allows, so a reservation is not an absolute requirement for every visit. The more useful question is whether you want certainty. If the evening matters, if you are coming on a weekend, if you are travelling with a group or if having a table is part of the experience you want, booking ahead removes a variable you do not need.
A spontaneous couple on a quieter night can reasonably try a walk-in. A bachelor group of eight that has built the whole evening around Diamond should not use the same strategy.
Who should book in advance?
Book if you are visiting on Friday or Saturday, travelling as a group, celebrating a birthday or bachelor party, hosting friends from abroad, or simply dislike arriving at a venue without knowing whether the setup you want is available. The official FAQ specifically recommends booking for weekends, groups and visits where you want a table package prepared before arrival.
A reservation also helps when the rest of your night has timing attached to it. If dinner ends at 22:00 and the next destination is confirmed, the evening feels continuous. If the next step is “we will see what happens”, a larger group can lose forty minutes deciding where to go.
How online booking works
The current booking flow asks you to choose a table package, date, arrival time and number of guests, then provide contact details and continue to secure online payment. The reservation becomes valid after payment confirmation. Table placement, bottle selection and the evening programme remain subject to capacity and current availability.
Keep the confirmation accessible on the phone of at least two people in the group. If one person’s battery dies, the reservation should not disappear with it.

The three current table packages
As checked on 27 August 2026, the Emerald package is listed at 5,500 CZK for 1–6 guests. It includes a reserved table, one 1L bottle of spirits chosen from the available selection, six soft drinks, six draft beers and entry for the booked group.
Ruby is listed at 6,500 CZK for 1–6 guests. It includes preferred table position subject to availability, one 1L bottle, six soft drinks, six draft beers, one show and entry for the booked group. The Diamond package is listed at 8,500 CZK for 1–10 guests, with VIP Lounge or best available seating, two 1L bottles, ten soft drinks, ten draft beers, entry and dedicated table service.
The packages are currently described as online-only and not available for direct purchase at the club. Because these are commercial terms, always let the live booking page overrule this article if price, inclusions or availability differ.

How to choose without overbuying
Start with group size and what you actually value. If the main requirement is a confirmed base for a small group, compare the entry-level table option. If the show and preferred position matter, compare Ruby. If you are a larger group or want the VIP Lounge/best-available seating and dedicated table service, compare the Diamond package.
Do not choose a package just because the name sounds more premium. Divide the total by the number of guests, look at what is included and decide whether those inclusions are things your group would otherwise buy. Good planning feels generous because it reduces friction, not because it maximizes spend.
Pick an arrival time your group can actually meet
The most common group-planning mistake is booking for the time everyone hopes to be ready rather than the time they realistically will be ready. Add buffer after dinner. Factor in people returning to the hotel, changing clothes, waiting for a ride and finding the entrance.
If you expect to arrive late, contact the venue rather than assuming the table will be held indefinitely. Diamond’s FAQ includes late arrival among its reservation topics, and the safest approach is always to communicate when the booked plan changes.
Use the booking note intelligently
The reservation form includes a field for special requests or a concierge note. Use it for information staff can act on: celebration type, preferred stage view, accessibility-related needs, group context or a question about timing. Avoid writing a miniature autobiography; one clear request is easier to handle than six vague preferences.
For larger private events or unusual arrangements, the contact page directs guests to contact Diamond in advance. That is more appropriate than trying to force a standard online package to solve a non-standard event.
When a walk-in makes sense
A walk-in is perfectly reasonable when you are flexible: perhaps two people on a weekday, no fixed seating requirement, and no problem choosing another plan if capacity is tight. Spontaneity is one of the pleasures of city nightlife.
The trade-off is simple. Walk-in gives you flexibility; reservation gives you predictability. Choose the one that matches the importance of the night.
Decision in 20 seconds
- Weekend + group = reserve.
- Celebration built around Diamond = reserve.
- You specifically want a table = reserve.
- Two people, flexible weekday plan = walk-in can be reasonable.
- More than ten guests or a private-event request = contact the venue in advance.
