Radiant|Lab Grown|IGI

12.57ct F VS1 Radiant Lab Grown Diamond

EX • F/VS1 • IGI LG791607296

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG791607296

Diamond specifications and retailer prices

From £1,517 GBP

$2,036 USD

As of November 2, 2026

Save £7,947 GBP (84%) vs most expensive(unlock to see where)

23 retailers carry this diamond

Most expensive: £9,464 GBP at Brilliant Earth · As of November 2, 2026

View at Brilliant Earth

About this 12.57ct lab-grown radiant diamond

This 12.57ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG791607296 or 791607296. Listed at 23 retailers as of November 2, 2026, with prices from £1,517 to £9,464, a £7,947 spread on the same certified stone. Brilliant Earth lists it at £9,464. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

12.57

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle22.7°

Pavilion angle34.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG791607296

Dimensions16.93 × 11.53 × 7.53 mm

L/W Ratio1.47

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG791607296

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2

Current: £9,464 GBP|Low: £1,363 GBP|High: £9,464 GBP|Avg: £3,622 GBP

Brilliant Earth

Retailer 2

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November 2, 2026

Retailer 14£1,517 GBP

Retailer 15£1,647 GBP

Retailer 9£1,651 GBP

Retailer 7£1,760 GBP

Retailer 21£1,885 GBP

Retailer 6£2,070 GBP

Retailer 11£2,165 GBP

Retailer 16£2,401 GBP

Retailer 22£2,419 GBP

Retailer 2£2,650 GBP

Retailer 19£2,724 GBP

Retailer 3£2,753 GBP

Retailer 13£2,782 GBP

Retailer 17£3,261 GBP

Retailer 10£3,339 GBP

Retailer 20£4,434 GBP

Retailer 8£4,742 GBP

Retailer 12£6,157 GBP

Retailer 5£6,574 GBP

Retailer 18£6,687 GBP

Retailer 4£7,488 GBP

Brilliant Earth£9,464 GBP

35 data points across 22 retailers

23 retailers£1,517 GBP to £9,464 GBP

Cheapest Retailer

£1,517 GBP

$2,036 USD

Retailer 2

£1,647 GBP

$2,210 USD

View

Price last confirmed 22 days ago

Retailer 3

£1,651 GBP

$2,215 USD

View

Retailer 4

£1,760 GBP

$2,362 USD

View

Retailer 5

£1,885 GBP

$2,530 USD

View

Retailer 6

£2,070 GBP

HK$21,700 HKD

View

Retailer 7

£2,165 GBP

$2,905 USD

View

Retailer 8

£2,401 GBP

View

Retailer 9

£2,419 GBP

$3,246 USD

View

Retailer 10

£2,650 GBP

$3,556 USD

View

Retailer 11

£2,724 GBP

ZAR 59,064 ZAR

View

B+

Retailer 12

£2,753 GBP

$3,695 USD

View

Retailer 13

£2,782 GBP

€3,556 EUR

View

B+

Retailer 14

£3,261 GBP

A$6,732 AUD

View

Retailer 15

£3,339 GBP

View

B+

Retailer 16

£4,434 GBP

$5,950 USD

View

B+

Retailer 17

£4,634 GBP

$6,219 USD

View

B+

Retailer 18

£4,742 GBP

$6,363 USD

View

Retailer 19

£6,157 GBP

$8,263 USD

View

Retailer 20

£6,574 GBP

$8,822 USD

View

Retailer 21

£6,687 GBP

A$13,805 AUD

View

Retailer 22

£7,488 GBP

$10,048 USD

View

Most Expensive

Brilliant Earth

20999261A · Nov 2

£9,464 GBP

$12,700 USD

View

22 more retailers have this diamond

Prices start from £1,517 GBPSave up to £7,947 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

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