Cushion|Lab Grown|IGI

4.51ct F VVS2 Cushion Lab Grown Diamond

ID • F/VVS2 • IGI LG792670672

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG792670672

Diamond specifications and retailer prices

From £563 GBP

$755 USD

As of November 1, 2026

Save £1,894 GBP (77%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: £2,847 GBP at Rare Carat · As of October 19, 2026

View at Rare Carat

About this 4.51ct lab-grown cushion diamond

This 4.51ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG792670672 or 792670672. Listed at 15 retailers as of November 1, 2026, with a 337% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.51

Carat

Colour

VVS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.7°

Pavilion angle29.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG792670672

Dimensions11.56 × 8.14 × 5.61 mm

L/W Ratio1.42

Girdle conditionFaceted

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 LG792670672

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: Nov 1

Current: £933 GBP|Low: £563 GBP|High: £2,470 GBP|Avg: £1,285 GBP|-3.0%

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

Retailer 14

November 3, 2026

Retailer 3£563 GBP

Retailer 6£613 GBP

Retailer 9£715 GBP

Retailer 12£853 GBP

Retailer 1£933 GBP

Retailer 11£950 GBP

Retailer 8£1,241 GBP

Retailer 10£1,250 GBP

Retailer 14£1,392 GBP

Retailer 2£1,817 GBP

Retailer 4£1,924 GBP

Retailer 5£1,989 GBP

Retailer 13£2,012 GBP

Retailer 7£2,457 GBP

43 data points across 14 retailers

15 retailers£563 GBP to £2,457 GBP

Cheapest Retailer

£563 GBP

$755 USD

Final sale: no returns

Retailer 2

£613 GBP

$822 USD

View

Price last confirmed 17 days ago

Retailer 3

£715 GBP

$960 USD

View

Retailer 4

£853 GBP

$1,145 USD

View

Retailer 5

£933 GBP

View

B+

Retailer 6

£950 GBP

$1,275 USD

View

Retailer 7

£1,241 GBP

ZAR 26,899 ZAR

View

Retailer 8

£1,250 GBP

A$2,580 AUD

View

Retailer 9

£1,392 GBP

$1,868 USD

View

B+

Retailer 10

£1,817 GBP

View

B+

Retailer 11

£1,924 GBP

$2,582 USD

View

B+

Retailer 12

£1,989 GBP

$2,669 USD

View

B+

Retailer 13

£2,012 GBP

$2,699 USD

View

B+

Retailer 14

£2,457 GBP

View

Most Expensive

Rare Carat

386-4-B_l_792670672 · Oct 19

£2,847 GBP

$3,820 USD

View

Price last confirmed 15 days ago

14 more retailers have this diamond

Prices start from £563 GBPSave up to £1,894 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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4.51ct Cushion

£563 GBP