Radiant|Lab Grown|IGI

1.45ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG816613026

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

Certificate IGI LG816613026

Diamond specifications and retailer prices

From £411 GBP
$551 USD
As of October 30, 2026
Save £1,701 GBP (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,403 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.45ct lab-grown radiant diamond

This 1.45ct 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 LG816613026 or 816613026. Listed at 9 retailers as of October 30, 2026, with a 414% 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

1.45
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816613026
Dimensions7.97 × 5.74 × 3.81 mm
L/W Ratio1.39
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
7.97 mm5.74 mm1.45 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816613026
Side View
Table 63.0%Crown 44.2°Girdle: MediumPavilion 35.6°Culet: NoneDepth 66.4%

Caratlytics Score

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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: £2,403 GBP|Low: £229 GBP|High: £3,202 GBP|Avg: £1,046 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 15
October 31, 2026
Retailer 3£229 GBP
Retailer 6£256 GBP
Retailer 12£411 GBP
Retailer 2£414 GBP
Retailer 4£615 GBP
Retailer 14£641 GBP
Retailer 15£661 GBP
Retailer 11£760 GBP
Retailer 5£837 GBP
Retailer 13£899 GBP
Retailer 9£1,100 GBP
Retailer 7£1,306 GBP
Retailer 10£1,769 GBP
Retailer 8£2,112 GBP
Rare Carat£2,403 GBP

17 data points across 15 retailers

9 retailers£411 GBP to £2,112 GBP

A
Cheapest Retailer
-
£411 GBP
$551 USD
A
Retailer 2
-
£414 GBP
$555 USD
View
Retailer 3
-
£661 GBP
ZAR 14,308 ZAR
View
Price last confirmed 50 days ago
B+
Retailer 4
-
£760 GBP
$1,018 USD
View
B+
Retailer 5
-
£899 GBP
$1,204 USD
View
B+
Retailer 6
-
£1,100 GBP
View
B
Retailer 7
-
£1,769 GBP
$2,370 USD
View
B
Retailer 8
-
£2,112 GBP
$2,830 USD
View
Most Expensive
Rare Carat
VL-123850 · Oct 21
£2,403 GBP
$3,220 USD
View
Price last confirmed 10 days ago
8 more retailers have this diamond
Prices start from £411 GBPSave up to £1,701 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
1.45ct Radiant
£411 GBP