Round|Lab Grown|IGI

3.51ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG617440041

Shape and cutting style on the report: Round brilliant

Certificate IGI LG617440041

Diamond specifications and retailer prices

From £379 GBP

$508 USD

As of October 29, 2026

Save £2,987 GBP (89%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: £3,366 GBP at Do Amore Diamonds · As of October 29, 2026

View at Do Amore Diamonds

About this 3.51ct lab-grown round diamond

This 3.51ct lab-grown round 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 LG617440041 or 617440041. Listed at 19 retailers as of October 29, 2026, with prices from £379 to £3,366, a £2,987 spread on the same certified stone. Do Amore Diamonds lists it at £3,366. 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

3.51

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.1°

Pavilion angle41.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG617440041

Dimensions9.64 × 9.57 × 6.01 mm

L/W Ratio1.01

Girdle conditionFaceted

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 LG617440041

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 29

Current: £2,672 GBP|Low: £363 GBP|High: £3,463 GBP|Avg: £991 GBP|-21.7%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

October 30, 2026

Retailer 13£379 GBP

Retailer 12£424 GBP

Retailer 2£469 GBP

Retailer 4£469 GBP

Retailer 10£571 GBP

Retailer 3£619 GBP

Retailer 5£695 GBP

Retailer 7£724 GBP

Retailer 6£1,095 GBP

Retailer 9£1,126 GBP

Retailer 11£1,212 GBP

Retailer 8£2,262 GBP

Retailer 1£2,672 GBP

39 data points across 13 retailers

19 retailers£379 GBP to £3,366 GBP

Cheapest Retailer

£379 GBP

$508 USD

Retailer 2

£424 GBP

$568 USD

View

Final sale: no returns

Retailer 3

£424 GBP

$568 USD

View

Retailer 4

£469 GBP

$629 USD

View

Price last confirmed 14 days ago

Retailer 5

£469 GBP

$629 USD

View

Retailer 6

£571 GBP

$765 USD

View

Retailer 7

£616 GBP

$825 USD

View

B+

Retailer 8

£619 GBP

$830 USD

View

Retailer 9

£695 GBP

$931 USD

View

Retailer 10

£724 GBP

View

B+

Retailer 11

£1,095 GBP

A$2,257 AUD

View

B+

Retailer 12

£1,126 GBP

ZAR 24,373 ZAR

View

Retailer 13

£1,212 GBP

$1,624 USD

View

Retailer 14

£1,364 GBP

$1,827 USD

View

Retailer 15

£1,613 GBP

$2,161 USD

View

Retailer 16

£1,768 GBP

$2,369 USD

View

Retailer 17

£2,262 GBP

View

Retailer 18

£2,672 GBP

$3,580 USD

View

Most Expensive

Do Amore Diamonds

27-752DB3F3E · Oct 29

£3,366 GBP

$4,510 USD

View

18 more retailers have this diamond

Prices start from £379 GBPSave up to £2,987 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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3.51ct Round

£379 GBP