Round|Lab Grown|IGI

6.23ct H VS2 Round Lab Grown Diamond

ID • H/VS2 • IGI LG578351349

Shape and cutting style on the report: Round brilliant

Certificate IGI LG578351349

Diamond specifications and retailer prices

From £1,153 GBP

$1,545 USD

As of October 29, 2026

Save £2,041 GBP (64%) vs most expensive(unlock to see where)

13 retailers carry this diamond

Most expensive: £3,194 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 6.23ct lab-grown round diamond

This 6.23ct lab-grown round sits in the over five carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG578351349 or 578351349. Listed at 13 retailers as of October 29, 2026, with prices from £1,153 to £3,194, a £2,041 spread on the same certified stone. Brilliant Earth lists it at £3,194. 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

6.23

Carat

Colour

VS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.1°

Pavilion angle41°

OriginLab Grown

Grading LabIGI

CertificateIGI LG578351349

Dimensions11.77 × 11.72 × 7.32 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizePointed

Cert comments

HEARTS & ARROWS 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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG578351349

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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

Price History

Last verified: Oct 29

Current: £3,194 GBP|Low: £466 GBP|High: £3,291 GBP|Avg: £1,570 GBP|-2.9%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

October 29, 2026

Retailer 4£652 GBP

Retailer 3£675 GBP

Retailer 8£1,153 GBP

Retailer 9£1,164 GBP

Retailer 2£1,164 GBP

Retailer 7£1,212 GBP

Retailer 11£1,298 GBP

Retailer 10£1,655 GBP

Retailer 5£1,747 GBP

Retailer 6£2,764 GBP

Retailer 12£2,820 GBP

Brilliant Earth£3,194 GBP

28 data points across 12 retailers

13 retailers£1,153 GBP to £3,194 GBP

Retailer 1

£634 GBP

$849 USD

Price last confirmed 37 days ago

Retailer 2

£666 GBP

$893 USD

View

Price last confirmed 33 days ago

B+

Retailer 3

£1,153 GBP

$1,545 USD

View

Retailer 4

£1,164 GBP

$1,559 USD

View

Retailer 5

£1,164 GBP

€1,486 EUR

View

Retailer 6

£1,212 GBP

View

Price last confirmed 13 days ago

B+

Retailer 7

£1,298 GBP

$1,739 USD

View

B+

Retailer 8

£1,655 GBP

$2,217 USD

View

B+

Retailer 9

£1,747 GBP

$2,341 USD

View

Retailer 10

£1,899 GBP

$2,545 USD

View

Price last confirmed 33 days ago

Retailer 11

£2,764 GBP

View

Price last confirmed 9 days ago

Retailer 12

£2,820 GBP

$3,778 USD

View

Price last confirmed 12 days ago

Most Expensive

Brilliant Earth

7628698A · Oct 29

£3,194 GBP

$4,280 USD

View

12 more retailers have this diamond

Prices start from £1,153 GBPSave up to £2,041 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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6.23ct Round

£1,153 GBP