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Diamonds over 5 carats in size are an anomaly of nature and are rarely found, which is reflected in their value. Old mine diamonds, old cuts and emerald cuts are just some of the few diamond cuts which suit these larger sizes. Perfect for both engagement rings, as an investment piece, these diamonds can start at over £100,000+.
Our team of jewellery experts are on hand to answer your questions online or in-store.
Truly one of the best vintage jewellery collections in London.
We had the most wonderful experience buying my vintage engagement ring from Berganza.
Fantastic experience buying an engagement ring. Would highly recommend. Berganza has the best collection of antique rings to choose from.
Using modern standards, a 5+ carat diamond will typically be over 11mm in width. This can vary when it comes to antique diamonds and also the cut.
Diamonds of this size are wonderful investment pieces and engagement rings, yet very rare to find.
Carat weight is measured most accurately on a weighing scale, but can also be measured approximately using a gauge should the diamond be set into jewellery. Diamonds of this size are accompanied by certificates stating the exact carat weight.