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Cushion|Lab Grown|IGI

1.53ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG836614381

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836614381

Diamond specifications and retailer prices

From £487 GBP
As of October 30, 2026
Save £2,426 GBP (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,914 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.53ct lab-grown cushion diamond

This 1.53ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836614381 or 836614381. Listed at 17 retailers as of October 29, 2026, with prices from £487 to £2,914, a £2,426 spread on the same certified stone. Brilliant Earth lists it at £2,914. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.53
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836614381
Dimensions8.20 × 5.81 × 3.96 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.20 mm5.81 mm1.53 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836614381
Side View
Table 64.0%Crown 33.5°Girdle: STK-THKPavilion 37°Culet: NoneDepth 68.2%

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: £2,914 GBP|Low: £486 GBP|High: £2,921 GBP|Avg: £1,302 GBP|-0.3%
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
Retailer 17
October 30, 2026
Retailer 2£487 GBP
Retailer 9£500 GBP
Retailer 14£544 GBP
Retailer 3£639 GBP
Retailer 4£732 GBP
Retailer 11£742 GBP
Retailer 10£786 GBP
Retailer 13£811 GBP
Retailer 16£834 GBP
Retailer 8£1,453 GBP
Retailer 6£1,533 GBP
Retailer 17£1,536 GBP
Retailer 15£1,654 GBP
Retailer 12£1,980 GBP
Retailer 7£1,982 GBP
Retailer 5£2,145 GBP
Brilliant Earth£2,914 GBP

23 data points across 17 retailers

17 retailers£487 GBP to £2,914 GBP

A
Cheapest Retailer
-
£487 GBP
Retailer 2
-
£500 GBP
$666 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
£544 GBP
$725 USD
View
A
Retailer 4
-
£639 GBP
$851 USD
View
A
Retailer 5
-
£732 GBP
$975 USD
View
A
Retailer 6
-
£742 GBP
€941 EUR
View
A
Retailer 7
-
£786 GBP
View
A
Retailer 8
-
£811 GBP
ZAR 17,442 ZAR
View
A
Retailer 9
-
£834 GBP
$1,111 USD
View
Retailer 10
-
£1,453 GBP
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£1,533 GBP
SGD 2,758 SGD
View
B+
Retailer 12
-
£1,536 GBP
$2,045 USD
View
B+
Retailer 13
-
£1,654 GBP
$2,203 USD
View
B+
Retailer 14
-
£1,980 GBP
View
Retailer 15
-
£1,982 GBP
$2,640 USD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
£2,145 GBP
$2,856 USD
View
Most Expensive
B
Brilliant Earth
21738473A · Oct 29
£2,914 GBP
$3,880 USD
View
16 more retailers have this diamond
Prices start from £487 GBPSave up to £2,426 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
1.53ct Cushion
£487 GBP