Radiant|Lab Grown|IGI

3.91ct G VS2 Radiant Lab Grown Diamond

EX • G/VS2 • IGI LG835641330

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

Certificate IGI LG835641330

Diamond specifications and retailer prices

From £417 GBP

$559 USD

As of October 30, 2026

Save £3,807 GBP (90%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: £4,224 GBP at Brilliant Earth · As of October 28, 2026

View at Brilliant Earth

About this 3.91ct lab-grown radiant diamond

This 3.91ct lab-grown radiant sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG835641330 or 835641330. Listed at 19 retailers as of October 28, 2026, with prices from £417 to £4,224, a £3,807 spread on the same certified stone. Brilliant Earth lists it at £4,224. 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

3.91

Carat

Colour

VS2

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle49.2°

Pavilion angle31.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG835641330

Dimensions11.41 × 7.82 × 4.85 mm

L/W Ratio1.46

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 LG835641330

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 30

Current: £4,224 GBP|Low: £401 GBP|High: £4,351 GBP|Avg: £1,237 GBP|-2.9%

Brilliant Earth

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October 31, 2026

Retailer 18£417 GBP

Retailer 6£467 GBP

Retailer 8£467 GBP

Retailer 7£517 GBP

Retailer 19£517 GBP

Retailer 12£586 GBP

Retailer 16£616 GBP

Retailer 5£797 GBP

Retailer 9£805 GBP

Retailer 2£807 GBP

Retailer 10£1,028 GBP

Retailer 15£1,335 GBP

Retailer 4£1,361 GBP

Retailer 17£1,501 GBP

Retailer 3£1,667 GBP

Retailer 11£1,678 GBP

Retailer 14£2,075 GBP

Retailer 13£2,259 GBP

Brilliant Earth£4,224 GBP

44 data points across 19 retailers

19 retailers£417 GBP to £4,224 GBP

Cheapest Retailer

£417 GBP

$559 USD

Retailer 2

£467 GBP

$626 USD

View

Final sale: no returns

Retailer 3

£467 GBP

$626 USD

View

Retailer 4

£517 GBP

$693 USD

View

Retailer 5

£517 GBP

$693 USD

View

Price last confirmed 14 days ago

Retailer 6

£586 GBP

View

Retailer 7

£616 GBP

$825 USD

View

B+

Retailer 8

£797 GBP

$1,068 USD

View

Retailer 9

£805 GBP

$1,079 USD

View

Retailer 10

£807 GBP

View

Retailer 11

£1,028 GBP

$1,377 USD

View

B+

Retailer 12

£1,335 GBP

$1,789 USD

View

B+

Retailer 13

£1,361 GBP

$1,824 USD

View

B+

Retailer 14

£1,501 GBP

View

B+

Retailer 15

£1,667 GBP

$2,233 USD

View

B+

Retailer 16

£1,678 GBP

$2,248 USD

View

B+

Retailer 17

£2,075 GBP

$2,780 USD

View

Retailer 18

£2,259 GBP

View

Most Expensive

Brilliant Earth

21426436A · Oct 28

£4,224 GBP

$5,660 USD

View

18 more retailers have this diamond

Prices start from £417 GBPSave up to £3,807 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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3.91ct Radiant

£417 GBP