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Cushion|Lab Grown|IGI

4.78ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG847661603

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG847661603

Diamond specifications and retailer prices

From £513 GBP
As of October 27, 2026
Save £3,109 GBP (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,622 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.78ct lab-grown cushion diamond

This 4.78ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG847661603 or 847661603. Listed at 16 retailers as of October 27, 2026, with prices from £513 to £3,622, a £3,109 spread on the same certified stone. Brilliant Earth lists it at £3,622. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.78
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847661603
Dimensions11.04 × 8.47 × 5.83 mm
L/W Ratio1.30
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.04 mm8.47 mm4.78 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847661603
Side View
Table 61.0%Crown 34.5°Girdle: MED-THKPavilion 34.4°Culet: NoneDepth 68.8%

Caratlytics Score

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A
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 27
Current: £1,288 GBP|Low: £512 GBP|High: £2,724 GBP|Avg: £1,355 GBP
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 14£513 GBP
Retailer 6£553 GBP
Retailer 12£658 GBP
Retailer 16£704 GBP
Retailer 5£852 GBP
Retailer 9£879 GBP
Retailer 15£911 GBP
Retailer 3£934 GBP
Retailer 1£1,288 GBP
Retailer 4£1,446 GBP
Retailer 7£1,898 GBP
Retailer 10£1,911 GBP
Retailer 8£1,977 GBP
Retailer 2£2,417 GBP
Retailer 11£2,685 GBP
Retailer 13£2,724 GBP

7 data points across 16 retailers

16 retailers£513 GBP to £3,622 GBP

A
Cheapest Retailer
-
£513 GBP
A
Retailer 2
-
£658 GBP
HK$6,900 HKD
View
Retailer 3
-
£704 GBP
$945 USD
View
Price last confirmed 5 days ago
Retailer 4
-
£852 GBP
$1,143 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£879 GBP
€1,123 EUR
View
A
Retailer 6
-
£911 GBP
View
Retailer 7
-
£934 GBP
$1,253 USD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
£1,288 GBP
$1,728 USD
View
B+
Retailer 9
-
£1,446 GBP
$1,940 USD
View
Retailer 10
-
£1,898 GBP
$2,547 USD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
£1,911 GBP
SGD 3,466 SGD
View
B+
Retailer 12
-
£1,977 GBP
$2,653 USD
View
B
Retailer 13
-
£2,417 GBP
View
B
Retailer 14
-
£2,685 GBP
$3,603 USD
View
B
Retailer 15
-
£2,724 GBP
$3,655 USD
View
Most Expensive
B
Brilliant Earth
22307796A · Nov 2
£3,622 GBP
$4,860 USD
View
15 more retailers have this diamond
Prices start from £513 GBPSave up to £3,109 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.

A
4.78ct Cushion
£513 GBP