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Clarity before carats

Quality you can
independently check.

Beautiful jewellery should also be properly understood. We make grading, reports and hallmarking clear.

Laboratory-grown diamond ring and its grading report

Laboratory-grown diamonds

A real diamond. A documented origin.

Laboratory-grown diamonds have essentially the same chemical composition, crystal structure and optical properties as mined diamonds. Specialist laboratories use advanced testing to identify origin and assess quality.

Where specified, qualifying centre stones are accompanied by independent reports from recognised gemmological laboratories such as IGI or GIA.

The internationally recognised 4Cs

Cut

How precisely the stone has been shaped and faceted—central to brilliance.

Colour

A graded assessment of how colourless a white diamond appears.

Clarity

The nature, position and visibility of internal and external characteristics.

Carat

A measurement of weight, not a guarantee of visual size or overall quality.

British precious-metal assurance

Hallmarked where required.

A UK hallmark is applied by an Assay Office after independent testing confirms precious-metal fineness. Items described as gold, silver, platinum or palladium must be hallmarked when they exceed the applicable statutory weight threshold.

Every Laike & Arlo piece requiring a UK hallmark will be submitted accordingly. Smaller exempt items will still be accurately described to the agreed metal specification.

Read official guidance ↗

What certification does—and does not—mean.

A diamond grading report documents a stone’s assessed characteristics; it is not a financial valuation or an insurance appraisal. Smaller accent stones are not normally graded individually. Your final specification will state exactly which stones carry individual reports.