In short: We analysed 82 recent guest reviews of Diamond Deluxe Hotel - Adults Only & Spa. Guests consistently praise Service & staff (44 of 44 mentions positive), The rooms and Condition & cleanliness.
Tripplo's verdict, based on guest reviews
By Axel Hernborg · Updated 30 August 2026 · How we review hotels
Diamond Deluxe Hotel - Adults Only & Spa is best for travellers seeking a quiet spa getaway with beachfront convenience. It has a Booking.com score of 9 from 261 reviews, and a Google rating of 4.7 across 773 reviews. Highlighted pros include direct access to a private sandy beach and a lagoon-style outdoor pool area. Be aware that the property sits on a nearby flightpath, causing occasional aircraft noise, and is located at a distance from Kos Town centre.
Guests score it 9.3 out of 10 — the average across the 13 hotels we list in Kos is 9.3.
What Guests Loved
- Guests can transition seamlessly from the manicured hotel gardens to a reserved stretch of Lambi Beach, complete with complimentary loungers and dedicated beverage service.
- The Mazarin Spa offers customized therapies, a thalassotherapy pool, and a tranquil atmosphere free from family-friendly distractions, catering to those seeking relaxation.
Things to Consider
- Located about five kilometers from the main town, the hotel requires a short taxi ride or bike rental for those wishing to explore historical sites and local nightlife.
- Occasional planes descending toward Kos Airport can be heard overhead, though double-glazed room windows successfully minimize any indoor disruption.
Should you book it?
Diamond Deluxe Hotel - Adults Only & Spa is worth booking for adults seeking a quiet wellness and spa holiday — but pick somewhere else if you want to walk to Kos Town centre easily.
Book it if you want
- Adults seeking a quiet wellness and spa holiday
- Sun-seekers wanting a private beach with free loungers
- Travellers who love striking, expansive outdoor pools
Pick somewhere else if
- You want to walk to Kos Town centre easily
- You are highly sensitive to occasional aircraft noise
Rooms & which one to pick
Our tip: For couples, book the Double Room Front Pool Swim-up which has one queen bed and sleeps two. Groups of four should choose the Villa - Split Level, which features one queen bed and two sofa beds to sleep four guests.
- Double Room1 queen bedsleeps 2
- Double Room Front Pool Swim-up1 queen bedsleeps 2
- Superior Double Room1 sofa bed and 1 queen bedsleeps 3
- Superior Front Pool Room Swim-up1 sofa bed and 1 queen bedsleeps 3
- Villa - Split Level2 sofa beds and 1 queen bedsleeps 436 m²
- Diamond Suite with Private Pool1 sofa bed and 1 queen bedsleeps 358 m²
- Deluxe Room1 sofa bed and 1 queen bedsleeps 3
Room types as listed on Booking.com; availability varies by date.
Prices at Diamond Deluxe Hotel - Adults Only & Spa
When we last checked (3 September 2026), a 2-night stay for two adults cost from €455 in total (€228 per night).
Across our last 11 daily price checks, the nightly rate has ranged from €228 to €338.
Prices sampled daily by Tripplo for a two-adult stay about a month ahead, in EUR. Your dates may differ — use the price check to see live availability.
Photos from previous guests
Photos provided by GoogleWhat guests say
Reviews from Google“This is our 3rd year at Diamond Deluxe and we love it for our annual summer vacation. Quiet, peaceful and relaxing. Amazing breakfast that sets you up for the entire day until dinner. Very friendly staff throughout the hotel. A very large pool which is never crowded, perfect for swimming or relaxing on an air-bed. We will be back again next year in July 2027”
“This hotel just stunning. Quiet atmosphere brings you to the mind peace. You do not think about civilization there! Relaxation on maximum! Private beach is just incredible - water amazing and just across the street ! Love it! One of unforgettable vacation i have ever had!”
“Exceptional Service We had a wonderful stay at the Diamond Deluxe Hotel in Kos at the end of May 2026. The hotel is situated in a private, quiet setting, but what really sets this resort apart is its fabulous staff. The attention to detail throughout our stay was incredible. The service we received was consistently welcoming and friendly, without exception, from every member of the team. We highly recommend this hotel for anyone looking for a perfect, relaxing and stress-free holiday.”
“May 2026 break for 5 nights. This hotel does truly live up it's diamond deluxe name. The staff are extremely friendly an approachable. Nothing is too much a request. Clean and bright. Birds and wildlife are free to roam and every morning we were awoken by the birds tweeting away. Rooms are spacious and ours had two balconies, both overlooking the sea and the hills and mountains behind the hotel. The pool is not heated and a bit nippy.....but Im sure is fine when the weather it hotter in July/August Is a little out of Kos town centre but easy to navigate to and there are bike/moped/car rental places everywhere. I would definitely return 😊”
“Just came back from 6 nights there. The entire staff was absolutely amazing. Peter and his team will treat you like you're a friend or a member of the family. My wife has a lot of food allergies, number one being. Gluten/celiac and he sat down with her and went over all ofjer allergies and outlined what they would do for all meals. First time on vacation where the entire trip she didn't get sick. We'll be back next year. Thank you and your team.”
What guests actually say
Tripplo analysed 82 full guest reviews in all languages. Every review is topic-tagged and the shares counted — never estimated.
Food & restaurants
16 reviews · 16 positive · 0 negative
- +Amazing breakfast
- +Good quality restaurant food, especially in the upstairs restaurant
- +Very good bar food
”Amazing breakfast that sets you up for the entire day until dinner.” — guest, translated
Service & staff
44 reviews · 44 positive · 0 negative
- +Exceptional and first-class staff service
- +Extremely helpful, welcoming, and friendly team
- +Fantastic bar, reception, and cleaning staff
”The service we received was consistently welcoming and friendly, without exception, from every member of the team.” — guest, translated
Pools, beach & aquapark
24 reviews · 19 positive · 0 negative
- +Awesome and very large pool size
- +Incredible private beach with amazing water just across the street
- –Pool water can feel a little cold
”Pool was lovely, although a little cold.” — guest, translated
The rooms
34 reviews · 34 positive · 0 negative
- +Spacious and very clean rooms
- +Highly comfortable beds and accommodations
- +Unbeatable and massive mini bar size
”The room was fantastic, spacious, and clean.” — guest, translated
Condition & cleanliness
27 reviews · 27 positive · 0 negative
- +Immaculately clean property
- +Spacious, open, and bright hotel facilities
- +Nice, modern decorations
”The entire property feels spacious and open as well as being immaculately clean.” — guest, translated
Location
13 reviews · 13 positive · 0 negative
- +Great location close to the sea
- +Private and quiet hotel setting
”The location and the accommodation was great.” — guest, translated
Noise levels
9 reviews · 9 positive · 0 negative
- +Quiet, peaceful, and highly relaxing atmosphere
value for money are mentioned too rarely in the sample for an honest picture — we don't guess.
Want to go deeper?
Download the Tripplo Report for Diamond Deluxe Hotel - Adults Only & Spa — the full category analysis, room guide, price analysis and alternatives as a PDF.
Frequently asked questions
How far is Diamond Deluxe Hotel - Adults Only & Spa from the airport?
Diamond Deluxe Hotel - Adults Only & Spa is 19 km from Kos International Airport (KGS).
How far is Diamond Deluxe Hotel - Adults Only & Spa from the centre of Kos?
Diamond Deluxe Hotel - Adults Only & Spa is 3.1 km from the centre of Kos.
How do guests rate Diamond Deluxe Hotel - Adults Only & Spa?
Diamond Deluxe Hotel - Adults Only & Spa is rated 4.7 out of 5 on Google, based on 776 reviews. On Booking.com it scores 9.3/10 from 265 guest reviews.
How many stars does Diamond Deluxe Hotel - Adults Only & Spa have?
Diamond Deluxe Hotel - Adults Only & Spa is a 5-star hotel.
What amenities does Diamond Deluxe Hotel - Adults Only & Spa offer?
Diamond Deluxe Hotel - Adults Only & Spa offers Outdoor swimming pool, Free Wifi, Beachfront, Airport shuttle, Free parking, Spa and wellness center.
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Lambi Area, 85300