Radiant|Lab Grown|IGI

4.34ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG636428610

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

Certificate IGI LG636428610

Diamond specifications and retailer prices

From £337 GBP

$451 USD

As of October 30, 2026

Save £2,037 GBP (86%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: £2,373 GBP at Rare Carat · As of October 28, 2026

View at Rare Carat

About this 4.34ct lab-grown radiant diamond

This 4.34ct lab-grown radiant sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG636428610 or 636428610. Listed at 17 retailers as of October 28, 2026, with prices from £337 to £2,373, a £2,037 spread on the same certified stone. Rare Carat lists it at £2,373. 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

4.34

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle45.2°

Pavilion angle34.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG636428610

Dimensions11.80 × 7.98 × 5.21 mm

L/W Ratio1.48

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG636428610

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: £2,373 GBP|Low: £337 GBP|High: £3,585 GBP|Avg: £1,266 GBP|-13.5%

Rare Carat

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October 31, 2026

Retailer 9£337 GBP

Retailer 7£378 GBP

Retailer 14£418 GBP

Retailer 19£459 GBP

Retailer 13£462 GBP

Retailer 16£526 GBP

Retailer 6£655 GBP

Retailer 18£682 GBP

Retailer 5£831 GBP

Retailer 15£834 GBP

Retailer 10£900 GBP

Retailer 4£1,033 GBP

Retailer 2£1,123 GBP

Retailer 20£1,343 GBP

Retailer 8£1,367 GBP

Retailer 17£1,543 GBP

Retailer 3£1,832 GBP

Rare Carat£2,373 GBP

Retailer 12£3,052 GBP

Retailer 11£3,585 GBP

5 data points across 20 retailers

17 retailers£337 GBP to £2,373 GBP

Cheapest Retailer

£337 GBP

$451 USD

Retailer 2

£378 GBP

$506 USD

View

Retailer 3

£418 GBP

$560 USD

View

Retailer 4

£459 GBP

HK$4,800 HKD

View

Retailer 5

£462 GBP

View

Retailer 6

£526 GBP

$705 USD

View

B+

Retailer 7

£655 GBP

$877 USD

View

Retailer 8

£682 GBP

$914 USD

View

Retailer 9

£831 GBP

ZAR 17,994 ZAR

View

Retailer 10

£834 GBP

A$1,720 AUD

View

Retailer 11

£1,033 GBP

$1,384 USD

View

B+

Retailer 12

£1,123 GBP

$1,505 USD

View

B+

Retailer 13

£1,343 GBP

$1,799 USD

View

B+

Retailer 14

£1,367 GBP

$1,831 USD

View

B+

Retailer 15

£1,543 GBP

View

Retailer 16

£1,832 GBP

$2,455 USD

View

Most Expensive

Rare Carat

KI6104286KF636 · Oct 28

£2,373 GBP

$3,180 USD

View

16 more retailers have this diamond

Prices start from £337 GBPSave up to £2,037 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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4.34ct Radiant

£337 GBP