Radiant|Lab Grown|IGI

1.46ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG811638561

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG811638561

Diamond specifications and retailer prices

From £413 GBP
$553 USD
As of October 30, 2026
Save £1,714 GBP (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,418 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.46ct lab-grown radiant diamond

This 1.46ct lab-grown radiant 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 LG811638561 or 811638561. Listed at 9 retailers as of October 30, 2026, with a 415% 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

1.46
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811638561
Dimensions7.79 × 5.73 × 3.85 mm
L/W Ratio1.36
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
7.79 mm5.73 mm1.46 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811638561
Side View
Table 66.0%Crown 41.1°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 67.2%

Caratlytics Score

How it works →
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 30
Current: £2,418 GBP|Low: £231 GBP|High: £3,224 GBP|Avg: £1,056 GBP|+1.1%
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
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Retailer 16
October 31, 2026
Retailer 4£231 GBP
Retailer 7£258 GBP
Retailer 13£413 GBP
Retailer 2£414 GBP
Retailer 5£619 GBP
Retailer 15£645 GBP
Retailer 16£665 GBP
Retailer 12£765 GBP
Retailer 6£848 GBP
Retailer 14£903 GBP
Retailer 3£1,092 GBP
Retailer 10£1,107 GBP
Retailer 8£1,314 GBP
Retailer 11£1,784 GBP
Retailer 9£2,127 GBP
Rare Carat£2,418 GBP

17 data points across 16 retailers

9 retailers£413 GBP to £2,127 GBP

A
Cheapest Retailer
-
£413 GBP
$553 USD
A
Retailer 2
-
£414 GBP
$555 USD
View
Retailer 3
-
£665 GBP
ZAR 14,400 ZAR
View
Price last confirmed 49 days ago
B+
Retailer 4
-
£765 GBP
$1,025 USD
View
B+
Retailer 5
-
£903 GBP
$1,210 USD
View
B+
Retailer 6
-
£1,107 GBP
View
B
Retailer 7
-
£1,784 GBP
$2,390 USD
View
B
Retailer 8
-
£2,127 GBP
$2,850 USD
View
Most Expensive
Rare Carat
PD-224133 · Oct 21
£2,418 GBP
$3,240 USD
View
Price last confirmed 9 days ago
8 more retailers have this diamond
Prices start from £413 GBPSave up to £1,714 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 Radiant
£413 GBP