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Round|Lab Grown|IGI

1.46ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG830624099

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830624099

Diamond specifications and retailer prices

From £228 GBP
$306 USD
As of November 1, 2026
Save £1,436 GBP (86%) vs most expensive(unlock to see where)
20 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 LG830624099 or 830624099. Listed at 20 retailers as of October 31, 2026, with prices from £228 to £1,664, a £1,436 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 angle35.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830624099
Dimensions7.27 × 7.30 × 4.46 mm
L/W Ratio1.00
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
7.27 mm7.30 mm1.46 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830624099
Side View
Table 58.0%Crown 35.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.2%

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: Nov 1
Current: £1,664 GBP|Low: £226 GBP|High: £1,829 GBP|Avg: £688 GBP|-9.0%
Brilliant Earth
Retailer 2
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Retailer 20
November 1, 2026
Retailer 8£228 GBP
Retailer 9£255 GBP
Retailer 3£265 GBP
Retailer 4£283 GBP
Retailer 10£283 GBP
Retailer 16£399 GBP
Retailer 5£462 GBP
Retailer 14£463 GBP
Retailer 7£475 GBP
Retailer 15£486 GBP
Retailer 13£502 GBP
Retailer 6£752 GBP
Retailer 20£869 GBP
Retailer 11£910 GBP
Retailer 18£911 GBP
Retailer 12£945 GBP
Retailer 17£1,021 GBP
Retailer 2£1,134 GBP
Retailer 19£1,511 GBP
Brilliant Earth£1,664 GBP

36 data points across 20 retailers

20 retailers£228 GBP to £1,664 GBP

A
Cheapest Retailer
-
£228 GBP
$306 USD
A
Retailer 2
-
£255 GBP
$342 USD
View
Final sale: no returns
A
Retailer 3
-
£265 GBP
$355 USD
View
Retailer 4
-
£283 GBP
$379 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£283 GBP
$379 USD
View
A
Retailer 6
-
£399 GBP
$535 USD
View
A
Retailer 7
-
£462 GBP
$619 USD
View
A
Retailer 8
-
£463 GBP
€591 EUR
View
A
Retailer 9
-
£475 GBP
$636 USD
View
A
Retailer 10
-
£486 GBP
ZAR 10,523 ZAR
View
A
Retailer 11
-
£502 GBP
View
B+
Retailer 12
-
£752 GBP
$1,007 USD
View
B+
Retailer 13
-
£869 GBP
$1,165 USD
View
B+
Retailer 14
-
£910 GBP
$1,219 USD
View
B+
Retailer 15
-
£911 GBP
SGD 1,650 SGD
View
B+
Retailer 16
-
£945 GBP
$1,266 USD
View
B+
Retailer 17
-
£1,021 GBP
$1,368 USD
View
B+
Retailer 18
-
£1,134 GBP
View
Retailer 19
-
£1,511 GBP
$2,025 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
21416935A · Oct 31
£1,664 GBP
$2,230 USD
View
19 more retailers have this diamond
Prices start from £228 GBPSave up to £1,436 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
£228 GBP