Round|Lab Grown|IGI

2.51ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG778663954

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778663954

Diamond specifications and retailer prices

From £343 GBP

$460 USD

As of October 29, 2026

Save £2,060 GBP (86%) vs most expensive(unlock to see where)

24 retailers carry this diamond

Most expensive: £2,403 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round sits in the two to three carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG778663954 or 778663954. Listed at 24 retailers as of October 29, 2026, with prices from £343 to £2,403, a £2,060 spread on the same certified stone. Brilliant Earth lists it at £2,403. 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

2.51

Carat

Colour

VVS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.1°

Pavilion angle40.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG778663954

Dimensions8.67 × 8.74 × 5.39 mm

L/W Ratio1.01

Girdle conditionFaceted

Culet sizePointed

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II Faint Blue

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG778663954

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: £2,403 GBP|Low: £330 GBP|High: £2,403 GBP|Avg: £994 GBP

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

October 31, 2026

Retailer 14£343 GBP

Retailer 5£425 GBP

Retailer 13£530 GBP

Retailer 9£563 GBP

Retailer 6£571 GBP

Retailer 2£647 GBP

Retailer 7£703 GBP

Retailer 10£945 GBP

Retailer 8£971 GBP

Retailer 12£1,027 GBP

Retailer 4£1,494 GBP

Retailer 11£1,572 GBP

Retailer 3£1,855 GBP

Brilliant Earth£2,403 GBP

34 data points across 14 retailers

24 retailers£343 GBP to £2,403 GBP

Cheapest Retailer

£343 GBP

$460 USD

Retailer 2

£384 GBP

$514 USD

View

Final sale: no returns

Retailer 3

£384 GBP

$515 USD

View

Retailer 4

£425 GBP

$570 USD

View

Retailer 5

£425 GBP

$570 USD

View

Price last confirmed 15 days ago

Retailer 6

£530 GBP

$710 USD

View

Retailer 7

£563 GBP

View

Retailer 8

£571 GBP

$765 USD

View

Retailer 9

£632 GBP

$847 USD

View

Retailer 10

£647 GBP

€825 EUR

View

B+

Retailer 11

£703 GBP

View

B+

Retailer 12

£852 GBP

$1,141 USD

View

B+

Retailer 13

£945 GBP

A$1,948 AUD

View

B+

Retailer 14

£971 GBP

$1,301 USD

View

B+

Retailer 15

£985 GBP

$1,320 USD

View

B+

Retailer 16

£1,027 GBP

ZAR 22,222 ZAR

View

Retailer 17

£1,368 GBP

$1,833 USD

View

Retailer 18

£1,391 GBP

$1,864 USD

View

Retailer 19

£1,494 GBP

$2,002 USD

View

Retailer 20

£1,510 GBP

$2,023 USD

View

Retailer 21

£1,572 GBP

View

Retailer 22

£1,593 GBP

$2,134 USD

View

Retailer 23

£1,855 GBP

$2,485 USD

View

Price last confirmed 16 days ago

Most Expensive

Brilliant Earth

18124807A · Oct 29

£2,403 GBP

$3,220 USD

View

23 more retailers have this diamond

Prices start from £343 GBPSave up to £2,060 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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2.51ct Round

£343 GBP