Emerald Cut Natural Diamonds

What defines an emerald cut diamond?

An emerald cut diamond is shaped by a series of parallel step facets arranged in concentric rectangular rows, producing long flashes of light rather than the scattered brilliance of a round or cushion cut. The corners are cropped at 45 degrees, creating an octagonal outline that reduces stress on the stone's edges. Originally developed for emerald gemstones — hence the name — the cut was adopted for diamonds during the Art Deco period and remains closely associated with that geometric aesthetic. The open table of a natural emerald cut diamond makes clarity and colour highly visible to the naked eye; both factors carry more weight here than in brilliant-cut shapes, where facet patterns can mask inclusions. A length-to-width ratio between 1.30 and 1.50 is considered classic for the shape, though ratios closer to 1.20 produce a squarer outline that some prefer.

What clarity and colour grades suit a natural emerald cut diamond?

Because the emerald cut's step facets act like mirrors rather than prisms, inclusions and colour tints are easier to detect than in brilliant cuts. For a natural emerald cut diamond, VS2 or VS1 clarity is a practical minimum if the stone is to appear eye-clean, though some SI1 stones with inclusions positioned toward the girdle or beneath a prong can also appear clean in person — each stone warrants individual review. On colour, the open table amplifies any warmth in the body: stones graded G or above typically face up white in white metal settings, while H or I can work well in yellow or rose gold, where the setting's warmth aligns with the diamond's body colour rather than contrasting with it. Every natural emerald cut diamond we supply is certified by GIA, HRD or IGI, with clarity, colour and cut characteristics independently documented.

How much does a natural emerald cut diamond cost in the UK?

Price is driven by carat weight, clarity, colour and the specific length-to-width ratio of the stone. Natural emerald cut diamonds at a given carat weight tend to show a larger face-up surface area than round brilliants of the same weight, because the shallow, elongated profile spreads mass across a wider footprint — which means a 1.0ct natural emerald cut can appear noticeably larger face-up than a 1.0ct round. That visual size advantage can shift buying decisions. For buyers setting a stone into an engagement ring, Bridebook's 2026 UK average engagement ring spend of £2,247 provides one market benchmark, though spend on the centre stone alone varies considerably by carat weight and grade. All natural emerald cut diamonds are available loose for collection or setting elsewhere, and also available set into one of our rings at our Hatton Garden workshop.

Natural versus lab-grown emerald cut diamonds — what is the difference?

Natural emerald cut diamonds are mined from geological deposits and carry a finite, irreplaceable provenance that some buyers consider significant for long-term ownership. Lab-grown emerald cut diamonds are chemically identical — the same carbon crystal structure — but are produced in controlled environments and typically carry a lower price per carat, which can mean a larger or higher-graded stone for a comparable budget. Both are certified by GIA, HRD or IGI to the same grading standards. The choice between natural and lab often depends on whether resale value over decades is a priority, or whether maximising the stone's size and specification within a set budget matters more. Neither option is objectively superior; both are genuine diamonds, and both are available here.

Buying a loose emerald cut natural diamond: process and delivery

Loose natural emerald cut diamonds are selected from certified inventory and dispatched with their grading report. There are no exclusions on returns — every loose stone comes with a 30-day return window, no questions asked. Delivery across the UK is complimentary and insured. If a purchased stone is to be set into one of our rings, the ring-making process then begins: a CAD design is produced, a silver or wax sample can be reviewed at our Hatton Garden workshop by appointment, and the finished ring — cast, set, polished and hallmarked at the London Assay Office — is delivered within 7 to 14 working days from order confirmation, depending on the complexity of the setting chosen.