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Round|Lab Grown|IGI

1.46ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG825639473

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825639473

Diamond specifications and retailer prices

From £290 GBP
$389 USD
As of October 29, 2026
Save £1,374 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,664 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.46ct lab-grown round diamond

This 1.46ct 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 LG825639473 or 825639473. Listed at 18 retailers as of October 29, 2026, with prices from £290 to £1,664, a £1,374 spread on the same certified stone. Brilliant Earth lists it at £1,664. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.46
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825639473
Dimensions7.26 × 7.32 × 4.45 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
7.26 mm7.32 mm1.46 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825639473
Side View
Table 58.0%Crown 33.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
A+
Exceptional
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 29
Current: £1,664 GBP|Low: £290 GBP|High: £1,664 GBP|Avg: £641 GBP
Brilliant Earth
Retailer 2
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Retailer 12
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Retailer 18
November 1, 2026
Retailer 18£290 GBP
Retailer 12£325 GBP
Retailer 16£325 GBP
Retailer 13£360 GBP
Retailer 10£363 GBP
Retailer 5£392 GBP
Retailer 7£484 GBP
Retailer 14£485 GBP
Retailer 4£541 GBP
Retailer 11£568 GBP
Retailer 17£573 GBP
Retailer 6£619 GBP
Retailer 2£651 GBP
Retailer 15£1,011 GBP
Retailer 8£1,146 GBP
Retailer 9£1,158 GBP
Retailer 3£1,416 GBP
Brilliant Earth£1,664 GBP

17 data points across 18 retailers

18 retailers£290 GBP to £1,664 GBP

A+
Cheapest Retailer
-
£290 GBP
$389 USD
A
Retailer 2
-
£325 GBP
$435 USD
View
Final sale: no returns
A
Retailer 3
-
£325 GBP
$436 USD
View
A
Retailer 4
-
£360 GBP
$483 USD
View
A
Retailer 5
-
£363 GBP
$486 USD
View
A
Retailer 6
-
£392 GBP
HK$4,100 HKD
View
A
Retailer 7
-
£484 GBP
$648 USD
View
A
Retailer 8
-
£485 GBP
$650 USD
View
A
Retailer 9
-
£541 GBP
$725 USD
View
A
Retailer 10
-
£568 GBP
€725 EUR
View
A
Retailer 11
-
£573 GBP
View
A
Retailer 12
-
£619 GBP
ZAR 13,407 ZAR
View
A
Retailer 13
-
£651 GBP
View
B+
Retailer 14
-
£1,011 GBP
$1,355 USD
View
B+
Retailer 15
-
£1,146 GBP
SGD 2,075 SGD
View
B+
Retailer 16
-
£1,158 GBP
$1,552 USD
View
B+
Retailer 17
-
£1,416 GBP
View
Most Expensive
B
Brilliant Earth
21294286A · Oct 31
£1,664 GBP
$2,230 USD
View
17 more retailers have this diamond
Prices start from £290 GBPSave up to £1,374 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+
1.46ct Round
£290 GBP