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Cushion|Lab Grown|IGI

5.40ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG819642920

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG819642920

Diamond specifications and retailer prices

From £900 GBP
As of October 30, 2026
Save £4,981 GBP (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,881 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 5.4ct lab-grown cushion diamond

This 5.4ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG819642920 or 819642920. Listed at 16 retailers as of October 30, 2026, with prices from £900 to £5,881, a £4,981 spread on the same certified stone. Brilliant Earth lists it at £5,881. 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

5.40
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle31.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819642920
Dimensions11.70 × 9.00 × 5.86 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
11.70 mm9.00 mm5.40 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819642920
Side View
Table 64.0%Crown 33.9°Girdle: STK-THKPavilion 31.7°Culet: NoneDepth 65.1%

Caratlytics Score

How it works →
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 30
Current: £5,881 GBP|Low: £799 GBP|High: £9,523 GBP|Avg: £2,224 GBP|-38.2%
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
Retailer 15
Retailer 16
October 31, 2026
Retailer 6£828 GBP
Retailer 11£900 GBP
Retailer 10£905 GBP
Retailer 4£996 GBP
Retailer 14£1,187 GBP
Retailer 9£1,278 GBP
Retailer 12£1,328 GBP
Retailer 2£1,679 GBP
Retailer 13£1,684 GBP
Retailer 5£2,128 GBP
Retailer 7£2,286 GBP
Retailer 16£2,463 GBP
Retailer 15£2,814 GBP
Retailer 8£2,885 GBP
Retailer 3£3,981 GBP
Brilliant Earth£5,881 GBP

26 data points across 16 retailers

16 retailers£900 GBP to £5,881 GBP

Retailer 1
-
£828 GBP
$1,110 USD
Price last confirmed 14 days ago
A
Retailer 2
-
£900 GBP
View
A
Retailer 3
-
£905 GBP
$1,212 USD
View
Final sale: no returns
A
Retailer 4
-
£996 GBP
$1,335 USD
View
B+
Retailer 5
-
£1,187 GBP
$1,590 USD
View
A
Retailer 6
-
£1,278 GBP
View
A
Retailer 7
-
£1,328 GBP
€1,695 EUR
View
Retailer 8
-
£1,679 GBP
A$3,462 AUD
View
A
Retailer 9
-
£1,684 GBP
ZAR 36,442 ZAR
View
B+
Retailer 10
-
£2,128 GBP
$2,851 USD
View
B+
Retailer 11
-
£2,286 GBP
View
B+
Retailer 12
-
£2,463 GBP
$3,300 USD
View
B+
Retailer 13
-
£2,814 GBP
View
B+
Retailer 14
-
£2,885 GBP
$3,865 USD
View
B
Retailer 15
-
£3,981 GBP
$5,334 USD
View
Most Expensive
B
Brilliant Earth
20916443A · Oct 30
£5,881 GBP
$7,880 USD
View
15 more retailers have this diamond
Prices start from £900 GBPSave up to £4,981 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
5.40ct Cushion
£900 GBP