Freestanding against built in
A built in island is part of the kitchen: it is fixed, it is usually only finished on the sides that show, and it belongs to the property. A freestanding island is a piece of furniture that happens to be island shaped, with a back as finished as its front.
That changes what it can do. It goes into a kitchen that is already finished without touching the existing units, it works in a rented flat, and it comes with you when you move. It also means no plumbing or electrics run to it, so it is a work surface and storage instead of a place for a sink or a cooktop.
Real marble tops
Every island here has a marble top, in white, brown or gray. That is a genuine stone surface instead of a laminate printed to look like one, which is the reason to choose one of these over an ordinary side table or trolley.
It also means the marble behaves as marble does. Acids etch it, the surface wants sealing, and the marble page sets out that chemistry in full. On a piece of furniture that lives in a kitchen and gets used for preparation, that is better settled first.
Sizing a freestanding island
Because these are not built to a plan, they have to fit around what is already in the kitchen: the run of units, the doors that open, the route people walk. A freestanding island needs clearance on every side, since it is approached from all of them.
That is the constraint that usually decides which one works. A kitchen with a generous floor takes a large island; a galley kitchen may take none at all, and the smaller pieces, including the server in this range, are the ones that suit a narrower space.
The island frame
Under the top, these carry the structure of furniture and not of cabinetry: legs or a plinth, shelves, drawers, sometimes a towel rail or a wine rack, and often an open lower shelf that a built in island would not have.
Open storage is a choice rather than an economy. It keeps the piece looking like furniture rather than like a unit, and it is what allows a large object in the middle of a room to read as light, not as a block.
Marble top colors
The tops here run white, brown and gray, and in a freestanding piece that choice does more work than it would in a fitted countertop. A fitted top is read as part of the kitchen; a furniture top is read as part of the object it sits on.
A white marble on a dark frame is the highest contrast version and reads as a deliberate centerpiece. A brown or gray top on a wood frame reads quieter and sits closer to the rest of the furniture in the room. Since the island is one of the few things in a kitchen that reads as furniture, not joinery, which of those two it does is worth deciding on purpose.
Where it sits against the alternatives
If the kitchen is being built or rebuilt, a fitted island with a slab top is the version that can carry a sink, a cooktop and power. The stone slab range covers the surfaces for that.
If the island is going outside, the outdoor kitchen islands range is built for weather and for equipment, which indoor furniture is not.