Radiant|Lab Grown|IGI

6.57ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG618416602

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

Certificate IGI LG618416602

Diamond specifications and retailer prices

From £1,157 GBP

$1,550 USD

As of October 31, 2026

Save £2,166 GBP (65%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: £3,323 GBP at MOH London · As of October 29, 2026

View at MOH London

About this 6.57ct lab-grown radiant diamond

This 6.57ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG618416602 or 618416602. Listed at 15 retailers as of October 29, 2026, with prices from £1,157 to £3,323, a £2,166 spread on the same certified stone. MOH London lists it at £3,323. 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

6.57

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle43.3°

Pavilion angle35.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG618416602

Dimensions13.08 × 9.33 × 6.19 mm

L/W Ratio1.40

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG618416602

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: Oct 31

Current: £3,323 GBP|Low: £1,157 GBP|High: £3,350 GBP|Avg: £2,153 GBP|+0.5%

MOH London

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

November 1, 2026

Retailer 4£1,157 GBP

Retailer 2£1,493 GBP

Retailer 7£1,633 GBP

Retailer 3£1,906 GBP

Retailer 5£1,990 GBP

Retailer 9£2,036 GBP

Retailer 8£2,480 GBP

Retailer 6£2,952 GBP

MOH London£3,323 GBP

42 data points across 9 retailers

15 retailers£1,157 GBP to £3,323 GBP

Retailer 1

£887 GBP

$1,188 USD

Price last confirmed 24 days ago

Retailer 2

£965 GBP

$1,293 USD

View

Price last confirmed 35 days ago

Retailer 3

£1,028 GBP

$1,378 USD

View

Price last confirmed 29 days ago

Retailer 4

£1,028 GBP

$1,378 USD

View

Price last confirmed 21 days ago

Retailer 5

£1,157 GBP

$1,550 USD

View

Retailer 6

£1,493 GBP

View

B+

Retailer 7

£1,633 GBP

$2,188 USD

View

B+

Retailer 8

£1,906 GBP

A$3,929 AUD

View

Retailer 9

£1,928 GBP

$2,583 USD

View

Price last confirmed 31 days ago

B+

Retailer 10

£1,970 GBP

$2,640 USD

View

B+

Retailer 11

£1,990 GBP

ZAR 43,086 ZAR

View

B+

Retailer 12

£2,036 GBP

$2,728 USD

View

B+

Retailer 13

£2,480 GBP

View

Retailer 14

£2,952 GBP

$3,956 USD

View

Most Expensive

MOH London

LG618416602 · Oct 29

£3,323 GBP

View

14 more retailers have this diamond

Prices start from £1,157 GBPSave up to £2,166 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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6.57ct Radiant

£1,157 GBP