CaratHunter
Plans
Cushion|Lab Grown|IGI

5.01ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG817634371

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG817634371

Diamond specifications and retailer prices

From £494 GBP
$658 USD
As of October 27, 2026
Save £5,115 GBP (91%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £5,609 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 5.01ct lab-grown cushion diamond

This 5.01ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG817634371 or 817634371. Listed at 14 retailers as of October 27, 2026, with prices from £494 to £5,609, a £5,115 spread on the same certified stone. Brilliant Earth lists it at £5,609. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.01
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817634371
Dimensions12.21 × 8.67 × 5.46 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.21 mm8.67 mm5.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817634371
Side View
Table 66.0%Crown 36.4°Girdle: MED-THKPavilion 33.6°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
A
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 27
Current: £5,609 GBP|Low: £494 GBP|High: £5,617 GBP|Avg: £1,446 GBP|-0.1%
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 29, 2026
Retailer 6£494 GBP
Retailer 9£574 GBP
Retailer 7£586 GBP
Retailer 3£631 GBP
Retailer 2£791 GBP
Retailer 5£811 GBP
Retailer 14£840 GBP
Retailer 10£850 GBP
Retailer 13£1,238 GBP
Retailer 4£1,512 GBP
Retailer 8£1,708 GBP
Retailer 12£2,223 GBP
Retailer 11£2,378 GBP
Brilliant Earth£5,609 GBP

40 data points across 14 retailers

14 retailers£494 GBP to £5,609 GBP

A
Cheapest Retailer
-
£494 GBP
$658 USD
Final sale: no returns
A
Retailer 2
-
£574 GBP
View
A
Retailer 3
-
£586 GBP
HK$6,100 HKD
View
A
Retailer 4
-
£631 GBP
$840 USD
View
A
Retailer 5
-
£791 GBP
€1,003 EUR
View
A
Retailer 6
-
£811 GBP
$1,080 USD
View
B+
Retailer 7
-
£840 GBP
$1,119 USD
View
A
Retailer 8
-
£850 GBP
View
B+
Retailer 9
-
£1,238 GBP
$1,649 USD
View
B+
Retailer 10
-
£1,512 GBP
$2,013 USD
View
B+
Retailer 11
-
£1,708 GBP
SGD 3,073 SGD
View
Retailer 12
-
£2,223 GBP
$2,960 USD
View
Price last confirmed 8 days ago
B
Retailer 13
-
£2,378 GBP
View
Most Expensive
B
Brilliant Earth
20782512A · Oct 29
£5,609 GBP
$7,470 USD
View
13 more retailers have this diamond
Prices start from £494 GBPSave up to £5,115 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
5.01ct Cushion
£494 GBP