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Round|Lab Grown|IGI

1.54ct E FL Round Lab Grown Diamond

EX • E/FL • IGI LG788621388

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788621388

Diamond specifications and retailer prices

From £360 GBP
$482 USD
As of October 29, 2026
Save £1,991 GBP (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £2,351 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round 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 LG788621388 or 788621388. Listed at 22 retailers as of October 29, 2026, with prices from £360 to £2,351, a £1,991 spread on the same certified stone. Brilliant Earth lists it at £2,351. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788621388
Dimensions7.44 × 7.49 × 4.48 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.44 mm7.49 mm1.54 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788621388
Side View
Table 61.0%Crown 35.2°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.1%

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 29
Current: £2,351 GBP|Low: £345 GBP|High: £2,821 GBP|Avg: £1,044 GBP|-16.7%
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 31, 2026
Retailer 16£360 GBP
Retailer 14£402 GBP
Retailer 3£446 GBP
Retailer 4£446 GBP
Retailer 6£596 GBP
Retailer 13£597 GBP
Retailer 9£621 GBP
Retailer 15£673 GBP
Retailer 10£732 GBP
Retailer 12£766 GBP
Retailer 5£1,034 GBP
Retailer 8£1,406 GBP
Retailer 17£1,433 GBP
Retailer 7£1,544 GBP
Retailer 2£1,737 GBP
Retailer 11£1,870 GBP
Brilliant Earth£2,351 GBP

42 data points across 17 retailers

22 retailers£360 GBP to £2,351 GBP

A
Cheapest Retailer
-
£360 GBP
$482 USD
A
Retailer 2
-
£402 GBP
$539 USD
View
Final sale: no returns
A
Retailer 3
-
£402 GBP
$539 USD
View
Retailer 4
-
£446 GBP
$597 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
£446 GBP
$597 USD
View
A
Retailer 6
-
£596 GBP
$798 USD
View
A
Retailer 7
-
£597 GBP
$800 USD
View
A
Retailer 8
-
£621 GBP
$832 USD
View
A
Retailer 9
-
£673 GBP
A$1,388 AUD
View
A
Retailer 10
-
£720 GBP
$965 USD
View
A
Retailer 11
-
£732 GBP
View
A
Retailer 12
-
£766 GBP
ZAR 16,578 ZAR
View
B+
Retailer 13
-
£1,034 GBP
$1,386 USD
View
B
Retailer 14
-
£1,406 GBP
SGD 2,546 SGD
View
B
Retailer 15
-
£1,433 GBP
$1,920 USD
View
B
Retailer 16
-
£1,454 GBP
$1,948 USD
View
B
Retailer 17
-
£1,544 GBP
$2,069 USD
View
B
Retailer 18
-
£1,561 GBP
$2,092 USD
View
B
Retailer 19
-
£1,667 GBP
$2,234 USD
View
B
Retailer 20
-
£1,737 GBP
€2,216 EUR
View
B
Retailer 21
-
£1,870 GBP
View
Most Expensive
B
Brilliant Earth
19705382A · Oct 30
£2,351 GBP
$3,150 USD
View
21 more retailers have this diamond
Prices start from £360 GBPSave up to £1,991 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
1.54ct Round
£360 GBP