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Cushion|Lab Grown|IGI

1.04ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG816602397

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816602397

Diamond specifications and retailer prices

From £313 GBP
$419 USD
As of October 26, 2026
Save £1,411 GBP (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,724 GBP at Brilliant Earth · As of October 31, 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816602397 or 816602397. Listed at 16 retailers as of October 26, 2026, with prices from £313 to £1,724, a £1,411 spread on the same certified stone. Brilliant Earth lists it at £1,724. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.04
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816602397
Dimensions7.19 × 5.03 × 3.42 mm
L/W Ratio1.43
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
7.19 mm5.03 mm1.04 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816602397
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 37.2°Culet: NoneDepth 68.0%

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 26
Current: £1,724 GBP|Low: £313 GBP|High: £2,082 GBP|Avg: £853 GBP|-17.2%
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
November 1, 2026
Retailer 15£313 GBP
Retailer 13£346 GBP
Retailer 14£475 GBP
Retailer 12£478 GBP
Retailer 3£521 GBP
Retailer 10£546 GBP
Retailer 5£552 GBP
Retailer 11£595 GBP
Retailer 9£626 GBP
Retailer 6£865 GBP
Retailer 7£918 GBP
Retailer 8£1,034 GBP
Retailer 4£1,142 GBP
Retailer 16£1,342 GBP
Retailer 2£1,353 GBP
Brilliant Earth£1,724 GBP

38 data points across 16 retailers

16 retailers£313 GBP to £1,724 GBP

A
Cheapest Retailer
-
£313 GBP
$419 USD
Final sale: no returns
Retailer 2
-
£346 GBP
$464 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
£475 GBP
$637 USD
View
A
Retailer 4
-
£478 GBP
$640 USD
View
A
Retailer 5
-
£521 GBP
$698 USD
View
A
Retailer 6
-
£546 GBP
€697 EUR
View
A
Retailer 7
-
£552 GBP
$739 USD
View
A
Retailer 8
-
£595 GBP
ZAR 12,876 ZAR
View
A
Retailer 9
-
£626 GBP
View
B+
Retailer 10
-
£865 GBP
$1,159 USD
View
B+
Retailer 11
-
£918 GBP
SGD 1,663 SGD
View
Retailer 12
-
£1,034 GBP
$1,385 USD
View
Price last confirmed 13 days ago
B+
Retailer 13
-
£1,142 GBP
$1,530 USD
View
B
Retailer 14
-
£1,342 GBP
View
B+
Retailer 15
-
£1,353 GBP
View
Most Expensive
B
Brilliant Earth
21422407A · Oct 31
£1,724 GBP
$2,310 USD
View
15 more retailers have this diamond
Prices start from £313 GBPSave up to £1,411 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
£313 GBP