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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 HK$5,029 HKD
$641 USD
As of November 2, 2026
Save HK$28,394 HKD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$33,423 HKD 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 HK$5,029 to HK$33,423, a HK$28,394 spread on the same certified stone. Rare Carat lists it at HK$33,423. 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

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 2
Current: HK$33,423 HKD|Low: HK$5,029 HKD|High: HK$55,940 HKD|Avg: HK$18,807 HKD|-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 6HK$5,029 HKD
Retailer 5HK$5,468 HKD
Retailer 14HK$5,829 HKD
Retailer 16HK$6,929 HKD
Retailer 2HK$6,938 HKD
Retailer 15HK$9,077 HKD
Retailer 10HK$9,314 HKD
Retailer 12HK$9,449 HKD
Retailer 4HK$9,533 HKD
Retailer 3HK$12,890 HKD
Retailer 13HK$14,891 HKD
Retailer 17HK$16,398 HKD
Retailer 11HK$24,561 HKD
Retailer 8HK$27,780 HKD
Rare CaratHK$33,423 HKD
Retailer 7HK$45,965 HKD
Retailer 9HK$55,940 HKD

7 data points across 17 retailers

14 retailersHK$5,029 HKD to HK$33,423 HKD

A
Cheapest Retailer
-
HK$5,029 HKD
$641 USD
A
Retailer 2
-
HK$5,468 HKD
$697 USD
View
A
Retailer 3
-
HK$5,829 HKD
$743 USD
View
A
Retailer 4
-
HK$6,929 HKD
View
A
Retailer 5
-
HK$6,938 HKD
£696 GBP
View
B+
Retailer 6
-
HK$9,077 HKD
$1,157 USD
View
A
Retailer 7
-
HK$9,314 HKD
£935 GBP
View
B+
Retailer 8
-
HK$9,449 HKD
€1,147 EUR
View
B+
Retailer 9
-
HK$9,533 HKD
$1,215 USD
View
B+
Retailer 10
-
HK$12,890 HKD
$1,643 USD
View
B+
Retailer 11
-
HK$14,891 HKD
$1,898 USD
View
B
Retailer 12
-
HK$16,398 HKD
$2,090 USD
View
B
Retailer 13
-
HK$24,561 HKD
£2,465 GBP
View
Most Expensive
B
Rare Carat
KI5392745KF551 · Nov 1
HK$33,423 HKD
$4,260 USD
View
13 more retailers have this diamond
Prices start from HK$5,029 HKDSave up to HK$28,394 HKD

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
HK$5,029 HKD