Radiant|Lab Grown|IGI

5.45ct F SI2 Radiant Lab Grown Diamond

ID • F/SI2 • IGI LG551274539

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

Certificate IGI LG551274539

Diamond specifications and retailer prices

From €574 EUR
$641 USD
As of November 2, 2026
Save €3,239 EUR (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €3,813 EUR at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 5.45ct lab-grown radiant diamond

This 5.45ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG551274539 or 551274539. Listed at 14 retailers as of November 1, 2026, with prices from €574 to €3,813, a €3,239 spread on the same certified stone. Rare Carat lists it at €3,813. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.45
Carat
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.2°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG551274539
Dimensions12.58 × 8.53 × 5.70 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.58 mm8.53 mm5.45 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG551274539
Side View
Table 65.5%Crown 46.2°Girdle: ThickPavilion 34.2°Culet: NoneDepth 66.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: €3,813 EUR|Low: €574 EUR|High: €6,382 EUR|Avg: €2,146 EUR|-11.2%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 6€574 EUR
Retailer 5€624 EUR
Retailer 14€665 EUR
Retailer 16€791 EUR
Retailer 2€791 EUR
Retailer 15€1,036 EUR
Retailer 10€1,063 EUR
Retailer 12€1,078 EUR
Retailer 4€1,088 EUR
Retailer 3€1,471 EUR
Retailer 13€1,699 EUR
Retailer 17€1,871 EUR
Retailer 11€2,802 EUR
Retailer 8€3,169 EUR
Rare Carat€3,813 EUR
Retailer 7€5,244 EUR
Retailer 9€6,382 EUR

7 data points across 17 retailers

14 retailers€574 EUR to €3,813 EUR

A
Cheapest Retailer
-
€574 EUR
$641 USD
A
Retailer 2
-
€624 EUR
$697 USD
View
A
Retailer 3
-
€665 EUR
$743 USD
View
A
Retailer 4
-
€791 EUR
HK$6,900 HKD
View
A
Retailer 5
-
€791 EUR
£696 GBP
View
B+
Retailer 6
-
€1,036 EUR
$1,157 USD
View
A
Retailer 7
-
€1,063 EUR
£935 GBP
View
B+
Retailer 8
-
€1,078 EUR
View
B+
Retailer 9
-
€1,088 EUR
$1,215 USD
View
B+
Retailer 10
-
€1,471 EUR
$1,643 USD
View
B+
Retailer 11
-
€1,699 EUR
$1,898 USD
View
B
Retailer 12
-
€1,871 EUR
$2,090 USD
View
B
Retailer 13
-
€2,802 EUR
£2,465 GBP
View
Most Expensive
B
Rare Carat
KI5392745KF551 · Nov 1
€3,813 EUR
$4,260 USD
View
13 more retailers have this diamond
Prices start from €574 EURSave up to €3,239 EUR

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
5.45ct Radiant
€574 EUR