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Round|Lab Grown|IGI

1.04ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG804668391

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804668391

Diamond specifications and retailer prices

From £170 GBP
$226 USD
As of October 29, 2026
Save £979 GBP (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,149 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.04ct lab-grown round diamond

This 1.04ct lab-grown round 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 LG804668391 or 804668391. Listed at 19 retailers as of October 29, 2026, with prices from £170 to £1,149, a £979 spread on the same certified stone. Brilliant Earth lists it at £1,149. 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 angle33.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804668391
Dimensions6.52 × 6.57 × 3.93 mm
L/W Ratio1.01
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
6.52 mm6.57 mm1.04 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804668391
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.0%

Caratlytics Score

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A+
Exceptional
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 29
Current: £1,149 GBP|Low: £168 GBP|High: £1,149 GBP|Avg: £461 GBP
Brilliant Earth
Retailer 2
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Retailer 19
October 29, 2026
Retailer 6£170 GBP
Retailer 19£189 GBP
Retailer 17£197 GBP
Retailer 9£210 GBP
Retailer 18£210 GBP
Retailer 14£336 GBP
Retailer 12£352 GBP
Retailer 3£358 GBP
Retailer 15£361 GBP
Retailer 4£386 GBP
Retailer 2£390 GBP
Retailer 5£407 GBP
Retailer 8£567 GBP
Retailer 11£676 GBP
Retailer 16£678 GBP
Retailer 7£715 GBP
Retailer 10£726 GBP
Retailer 13£847 GBP
Brilliant Earth£1,149 GBP

29 data points across 19 retailers

19 retailers£170 GBP to £1,149 GBP

A+
Cheapest Retailer
-
£170 GBP
$226 USD
A
Retailer 2
-
£189 GBP
$252 USD
View
Final sale: no returns
A
Retailer 3
-
£197 GBP
$262 USD
View
A
Retailer 4
-
£210 GBP
$280 USD
View
A
Retailer 5
-
£210 GBP
$280 USD
View
A
Retailer 6
-
£336 GBP
View
A
Retailer 7
-
£352 GBP
€447 EUR
View
A
Retailer 8
-
£358 GBP
$477 USD
View
A
Retailer 9
-
£361 GBP
ZAR 7,773 ZAR
View
A
Retailer 10
-
£386 GBP
$514 USD
View
A
Retailer 11
-
£390 GBP
View
A
Retailer 12
-
£407 GBP
$542 USD
View
B+
Retailer 13
-
£567 GBP
SGD 1,021 SGD
View
B+
Retailer 14
-
£676 GBP
$900 USD
View
B+
Retailer 15
-
£678 GBP
$903 USD
View
B+
Retailer 16
-
£715 GBP
$953 USD
View
B+
Retailer 17
-
£726 GBP
$967 USD
View
B+
Retailer 18
-
£847 GBP
View
Most Expensive
B
Brilliant Earth
21420834A · Oct 29
£1,149 GBP
$1,530 USD
View
18 more retailers have this diamond
Prices start from £170 GBPSave up to £979 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 Round
£170 GBP