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Round|Lab Grown|IGI

1.54ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG788618858

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788618858

Diamond specifications and retailer prices

From £478 GBP
HK$5,000 HKD
As of October 30, 2026
Save £1,381 GBP (74%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,048 GBP at Rare Carat · As of August 3, 2026
View at Rare Carat

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 LG788618858 or 788618858. Listed at 11 retailers as of October 30, 2026, with a 289% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788618858
Dimensions7.36 × 7.43 × 4.57 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
7.36 mm7.43 mm1.54 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788618858
Side View
Table 56.0%Crown 35.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.8%

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 30
Current: £712 GBP|Low: £478 GBP|High: £2,373 GBP|Avg: £1,130 GBP|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 6£478 GBP
Retailer 8£582 GBP
Retailer 4£654 GBP
Retailer 9£666 GBP
Retailer 1£712 GBP
Retailer 10£718 GBP
Retailer 2£1,418 GBP
Retailer 7£1,525 GBP
Retailer 5£1,597 GBP
Retailer 3£1,858 GBP

43 data points across 10 retailers

11 retailers£478 GBP to £1,858 GBP

A
Cheapest Retailer
-
£478 GBP
HK$5,000 HKD
A
Retailer 2
-
£582 GBP
$780 USD
View
A
Retailer 3
-
£654 GBP
€835 EUR
View
A
Retailer 4
-
£666 GBP
$893 USD
View
A
Retailer 5
-
£712 GBP
View
A
Retailer 6
-
£718 GBP
$962 USD
View
B
Retailer 7
-
£1,418 GBP
$1,900 USD
View
B
Retailer 8
-
£1,525 GBP
$2,044 USD
View
B+
Retailer 9
-
£1,597 GBP
View
B
Retailer 10
-
£1,858 GBP
$2,490 USD
View
Most Expensive
Rare Carat
IGI-110450 · Aug 3
£2,048 GBP
$2,744 USD
View
Price last confirmed 89 days ago
10 more retailers have this diamond
Prices start from £478 GBPSave up to £1,381 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
£478 GBP