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Cushion|Lab Grown|IGI

1.04ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG836621343

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836621343

Diamond specifications and retailer prices

From £475 GBP
$637 USD
As of October 30, 2026
Save £1,256 GBP (73%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,731 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 LG836621343 or 836621343. Listed at 13 retailers as of October 30, 2026, with prices from £475 to £1,731, a £1,256 spread on the same certified stone. Brilliant Earth lists it at £1,731. 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 angle38°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836621343
Dimensions7.30 × 5.06 × 3.49 mm
L/W Ratio1.44
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
7.30 mm5.06 mm1.04 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836621343
Side View
Table 65.0%Crown 38°Girdle: STK-THKPavilion 35.3°Culet: NoneDepth 69.0%

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 30
Current: £1,731 GBP|Low: £346 GBP|High: £2,082 GBP|Avg: £878 GBP|-16.8%
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
November 1, 2026
Retailer 9£346 GBP
Retailer 11£475 GBP
Retailer 8£478 GBP
Retailer 6£546 GBP
Retailer 13£552 GBP
Retailer 7£595 GBP
Retailer 2£626 GBP
Retailer 3£865 GBP
Retailer 4£918 GBP
Retailer 5£1,034 GBP
Retailer 12£1,142 GBP
Retailer 10£1,354 GBP
Brilliant Earth£1,731 GBP

40 data points across 13 retailers

13 retailers£475 GBP to £1,731 GBP

Retailer 1
-
£346 GBP
$464 USD
Price last confirmed 7 days ago
A
Retailer 2
-
£475 GBP
$637 USD
View
A
Retailer 3
-
£478 GBP
$640 USD
View
A
Retailer 4
-
£546 GBP
€697 EUR
View
A
Retailer 5
-
£552 GBP
$739 USD
View
A
Retailer 6
-
£595 GBP
ZAR 12,876 ZAR
View
A
Retailer 7
-
£626 GBP
View
B+
Retailer 8
-
£865 GBP
$1,159 USD
View
B+
Retailer 9
-
£918 GBP
SGD 1,663 SGD
View
Retailer 10
-
£1,034 GBP
$1,385 USD
View
Price last confirmed 13 days ago
B+
Retailer 11
-
£1,142 GBP
$1,530 USD
View
Retailer 12
-
£1,354 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
Brilliant Earth
21589852A · Oct 31
£1,731 GBP
$2,320 USD
View
12 more retailers have this diamond
Prices start from £475 GBPSave up to £1,256 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
£475 GBP