CaratHunter
Plans
Cushion|Lab Grown|IGI

1.04ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG816612990

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816612990

Diamond specifications and retailer prices

From £278 GBP
$372 USD
As of October 25, 2026
Save £1,021 GBP (79%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,299 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.04ct lab-grown cushion diamond

This 1.04ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816612990 or 816612990. Listed at 12 retailers as of October 25, 2026, with prices from £278 to £1,299, a £1,021 spread on the same certified stone. Brilliant Earth lists it at £1,299. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.04
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816612990
Dimensions7.33 × 5.15 × 3.49 mm
L/W Ratio1.42
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
7.33 mm5.15 mm1.04 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816612990
Side View
Table 58.0%Crown 34.3°Girdle: MED-VTKPavilion 33.7°Culet: NoneDepth 67.8%

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 25
Current: £1,299 GBP|Low: £278 GBP|High: £1,642 GBP|Avg: £833 GBP|-20.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 7£278 GBP
Retailer 5£447 GBP
Retailer 11£454 GBP
Retailer 9£466 GBP
Retailer 6£476 GBP
Retailer 2£492 GBP
Retailer 12£714 GBP
Retailer 3£759 GBP
Retailer 10£927 GBP
Retailer 4£996 GBP
Retailer 8£1,113 GBP
Brilliant Earth£1,299 GBP

42 data points across 12 retailers

12 retailers£278 GBP to £1,299 GBP

A
Cheapest Retailer
-
£278 GBP
$372 USD
A
Retailer 2
-
£447 GBP
€571 EUR
View
A
Retailer 3
-
£454 GBP
$608 USD
View
A
Retailer 4
-
£466 GBP
$625 USD
View
A
Retailer 5
-
£476 GBP
ZAR 10,314 ZAR
View
A
Retailer 6
-
£492 GBP
View
B+
Retailer 7
-
£714 GBP
$957 USD
View
B+
Retailer 8
-
£759 GBP
SGD 1,375 SGD
View
B+
Retailer 9
-
£927 GBP
$1,242 USD
View
Retailer 10
-
£996 GBP
$1,335 USD
View
Price last confirmed 12 days ago
B
Retailer 11
-
£1,113 GBP
View
Most Expensive
B
Brilliant Earth
21422289A · Oct 30
£1,299 GBP
$1,740 USD
View
11 more retailers have this diamond
Prices start from £278 GBPSave up to £1,021 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
1.04ct Cushion
£278 GBP