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Cushion|Lab Grown|IGI

5.21ct E VVS1 Cushion Lab Grown Diamond

GD • E/VVS1 • IGI LG799680393

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG799680393

Diamond specifications and retailer prices

From £979 GBP
$1,312 USD
As of October 30, 2026
Save £2,854 GBP (74%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £5,971 GBP at Novita Diamonds · As of October 1, 2026
View at Novita Diamonds

About this 5.21ct lab-grown cushion diamond

This 5.21ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a standard cut grade and certified by IGI LG799680393 or 799680393. Listed at 18 retailers as of October 30, 2026, with a 291% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.21
Carat
E
Colour
VVS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799680393
Dimensions11.82 × 9.06 × 5.99 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.82 mm9.06 mm5.21 ctE / VVS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799680393
Side View
Table 66.0%Crown 38.7°Girdle: STK-THKPavilion 36.6°Culet: NoneDepth 66.1%

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 30
Current: £979 GBP|Low: £979 GBP|High: £4,653 GBP|Avg: £2,402 GBP|-2.3%
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
October 30, 2026
Retailer 1£979 GBP
Retailer 3£1,142 GBP
Retailer 14£1,325 GBP
Retailer 5£1,461 GBP
Retailer 9£1,474 GBP
Retailer 11£1,559 GBP
Retailer 12£2,069 GBP
Retailer 6£2,089 GBP
Retailer 2£2,785 GBP
Retailer 4£2,809 GBP
Retailer 13£3,289 GBP
Retailer 10£3,554 GBP
Retailer 15£3,688 GBP
Retailer 8£3,833 GBP
Retailer 7£4,653 GBP

18 data points across 15 retailers

18 retailers£979 GBP to £3,833 GBP

A
Cheapest Retailer
-
£979 GBP
$1,312 USD
Final sale: no returns
Retailer 2
-
£1,046 GBP
$1,401 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
£1,142 GBP
$1,530 USD
View
A
Retailer 4
-
£1,325 GBP
$1,776 USD
View
A
Retailer 5
-
£1,461 GBP
$1,958 USD
View
A
Retailer 6
-
£1,474 GBP
View
A
Retailer 7
-
£1,559 GBP
€1,990 EUR
View
B+
Retailer 8
-
£2,069 GBP
ZAR 44,778 ZAR
View
Retailer 9
-
£2,089 GBP
A$4,307 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£2,785 GBP
$3,732 USD
View
B
Retailer 11
-
£2,809 GBP
View
B
Retailer 12
-
£3,038 GBP
$4,071 USD
View
B+
Retailer 13
-
£3,289 GBP
View
B
Retailer 14
-
£3,554 GBP
$4,762 USD
View
B
Retailer 15
-
£3,688 GBP
$4,942 USD
View
B
Retailer 16
-
£3,833 GBP
SGD 6,940 SGD
View
Retailer 17
-
£4,653 GBP
$6,235 USD
View
Price last confirmed 9 days ago
Most Expensive
Novita Diamonds
cert_799680393 · Oct 1
£5,971 GBP
A$12,309 AUD
View
Price last confirmed 29 days ago
17 more retailers have this diamond
Prices start from £979 GBPSave up to £2,854 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
5.21ct Cushion
£979 GBP