15.09 Carat Round Lab Diamond, E SI1, Ideal Cut, IGI

£5,100.00

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E is colourless, in the top tier of white diamonds; SI1 clarity means inclusions are usually not visible to the naked eye; an Ideal cut gives maximum brilliance.

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We make your piece around this diamond in yellow, white or rose gold (9K, 14K or 18K) or platinum, in one of our designs or your own. Made to order · Estimated dispatch in about 6 weeks.

Ring, pendant or your own designSettings for diamonds over 5ct are quoted individually

Diamond details

Shape: Round
Carat: 15.09
Colour: E
Clarity: SI1
Cut: Ideal
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Measurements: 15.92 × 16.02 × 9.69 mm
Table: 58%
Depth: 60.6%
Crown angle / height: 34.5° / 14.5%
Pavilion angle / depth: 40.8° / 43%
Girdle: Medium
Culet: Pointed
Growth method: CVD lab-grown
Certificate: IGI 579385501Verify on IGI.org ↗

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15.09 Carat Round Lab Diamond, E SI1, Ideal Cut, IGI

£5,100.00

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This diamond shown at its real size on a hand.

Hand with this diamond shown at its true size on the ring finger

Your ring size

Shown on a UK size L finger (US 6, EU 52), skin tone digitally adjusted for illustration. Scale is based on standard ring sizing, so finger sizes vary.

All UK solid gold orders are hallmarked by the Assay Office. Diamonds over 0.5 carat are independently graded by GIA, IGI or GCAL. We work exclusively with RJC-certified suppliers to ensure ethical and sustainable sourcing.