Radiant|Lab Grown|IGI

1.46ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG816615227

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

Certificate IGI LG816615227

Diamond specifications and retailer prices

From £232 GBP
$311 USD
As of October 30, 2026
Save £2,029 GBP (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,429 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 LG816615227 or 816615227. Listed at 20 retailers as of October 30, 2026, with a 874% 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 angle37.7°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615227
Dimensions8.25 × 5.73 × 3.63 mm
L/W Ratio1.44
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
8.25 mm5.73 mm1.46 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615227
Side View
Table 63.0%Crown 37.7°Girdle: MediumPavilion 34.1°Culet: NoneDepth 63.4%

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: £2,429 GBP|Low: £232 GBP|High: £3,239 GBP|Avg: £898 GBP|-0.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
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Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 19
Retailer 20
October 30, 2026
Retailer 9£232 GBP
Retailer 19£269 GBP
Retailer 17£278 GBP
Retailer 8£287 GBP
Retailer 18£287 GBP
Retailer 16£403 GBP
Retailer 3£469 GBP
Retailer 15£494 GBP
Retailer 13£511 GBP
Retailer 20£532 GBP
Retailer 4£816 GBP
Retailer 10£884 GBP
Retailer 7£925 GBP
Retailer 6£959 GBP
Retailer 12£1,059 GBP
Retailer 5£1,115 GBP
Retailer 14£1,159 GBP
Retailer 11£1,206 GBP
Retailer 2£2,261 GBP
Rare Carat£2,429 GBP

31 data points across 20 retailers

20 retailers£232 GBP to £2,261 GBP

A
Cheapest Retailer
-
£232 GBP
$311 USD
A
Retailer 2
-
£269 GBP
$361 USD
View
A
Retailer 3
-
£278 GBP
$372 USD
View
Final sale: no returns
A
Retailer 4
-
£287 GBP
$385 USD
View
A
Retailer 5
-
£287 GBP
$385 USD
View
A
Retailer 6
-
£403 GBP
$540 USD
View
A
Retailer 7
-
£469 GBP
$628 USD
View
A
Retailer 8
-
£494 GBP
ZAR 10,700 ZAR
View
A
Retailer 9
-
£511 GBP
View
Retailer 10
-
£532 GBP
€679 EUR
View
Price last confirmed 7 days ago
B+
Retailer 11
-
£816 GBP
$1,094 USD
View
B+
Retailer 12
-
£884 GBP
$1,184 USD
View
B+
Retailer 13
-
£925 GBP
$1,239 USD
View
B+
Retailer 14
-
£959 GBP
$1,286 USD
View
B+
Retailer 15
-
£1,059 GBP
SGD 1,917 SGD
View
B+
Retailer 16
-
£1,115 GBP
View
B+
Retailer 17
-
£1,159 GBP
View
B
Retailer 18
-
£1,206 GBP
$1,616 USD
View
B
Retailer 19
-
£2,261 GBP
$3,030 USD
View
Most Expensive
Rare Carat
PD-227815 · Oct 21
£2,429 GBP
$3,255 USD
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from £232 GBPSave up to £2,029 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
£232 GBP