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Round|Lab Grown|IGI

1.48ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG780663389

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780663389

Diamond specifications and retailer prices

From £430 GBP
HK$4,500 HKD
As of October 31, 2026
Save £1,009 GBP (70%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,552 GBP at Rare Carat · As of October 7, 2026
View at Rare Carat

About this 1.48ct lab-grown round diamond

This 1.48ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663389 or 780663389. Listed at 13 retailers as of October 31, 2026, with a 235% 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

1.48
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663389
Dimensions7.34 × 7.40 × 4.44 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
7.34 mm7.40 mm1.48 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663389
Side View
Table 58.0%Crown 33.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.3%

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 31
Current: £1,552 GBP|Low: £430 GBP|High: £2,317 GBP|Avg: £1,099 GBP|-1.2%
Rare Carat
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 13£430 GBP
Retailer 3£521 GBP
Retailer 12£549 GBP
Retailer 7£592 GBP
Retailer 6£603 GBP
Retailer 8£633 GBP
Retailer 9£793 GBP
Retailer 10£851 GBP
Retailer 5£916 GBP
Retailer 4£1,211 GBP
Retailer 11£1,426 GBP
Retailer 2£1,439 GBP
Rare Carat£1,552 GBP

32 data points across 13 retailers

13 retailers£430 GBP to £1,439 GBP

A
Cheapest Retailer
-
£430 GBP
HK$4,500 HKD
A
Retailer 2
-
£521 GBP
$698 USD
View
A
Retailer 3
-
£549 GBP
$735 USD
View
A
Retailer 4
-
£592 GBP
€756 EUR
View
A
Retailer 5
-
£603 GBP
View
A
Retailer 6
-
£633 GBP
ZAR 13,695 ZAR
View
B+
Retailer 7
-
£793 GBP
$1,063 USD
View
B+
Retailer 8
-
£851 GBP
$1,140 USD
View
B+
Retailer 9
-
£916 GBP
A$1,888 AUD
View
B+
Retailer 10
-
£1,211 GBP
$1,622 USD
View
B+
Retailer 11
-
£1,426 GBP
$1,911 USD
View
B
Retailer 12
-
£1,439 GBP
View
Most Expensive
Rare Carat
53486 · Oct 7
£1,552 GBP
$2,080 USD
View
Price last confirmed 25 days ago
12 more retailers have this diamond
Prices start from £430 GBPSave up to £1,009 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
1.48ct Round
£430 GBP