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Radiant|Lab Grown|IGI

5.38ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG551208000

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

Certificate IGI LG551208000

Diamond specifications and retailer prices

From $819 SGD
$641 USD
As of October 30, 2026
Save $3,789 SGD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,609 SGD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 5.38ct lab-grown radiant diamond

This 5.38ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG551208000 or 551208000. Listed at 16 retailers as of October 28, 2026, with prices from $819 to $4,609, a $3,789 spread on the same certified stone. Rare Carat lists it at $4,609. 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

5.38
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.5°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG551208000
Dimensions12.55 × 8.51 × 5.69 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
12.55 mm8.51 mm5.38 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG551208000
Side View
Table 65.0%Crown 44.5°Girdle: ThickPavilion 34.5°Culet: NoneDepth 66.9%

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: Oct 30
Current: $4,609 SGD|Low: $819 SGD|High: $11,429 SGD|Avg: $3,253 SGD
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
Retailer 18
Retailer 19
November 1, 2026
Retailer 8$819 SGD
Retailer 6$891 SGD
Retailer 15$950 SGD
Retailer 2$1,063 SGD
Retailer 19$1,129 SGD
Retailer 16$1,176 SGD
Retailer 18$1,475 SGD
Retailer 12$1,518 SGD
Retailer 13$1,540 SGD
Retailer 5$1,553 SGD
Retailer 14$2,428 SGD
Retailer 3$2,672 SGD
Retailer 4$2,915 SGD
Retailer 7$3,279 SGD
Retailer 17$4,025 SGD
Rare Carat$4,609 SGD
Retailer 10$5,695 SGD
Retailer 9$8,119 SGD
Retailer 11$11,429 SGD

6 data points across 19 retailers

16 retailers$819 SGD to $4,609 SGD

A
Cheapest Retailer
-
$819 SGD
$641 USD
A
Retailer 2
-
$891 SGD
$697 USD
View
A
Retailer 3
-
$950 SGD
$743 USD
View
A
Retailer 4
-
$1,063 SGD
£655 GBP
View
A
Retailer 5
-
$1,129 SGD
HK$6,900 HKD
View
A
Retailer 6
-
$1,176 SGD
$920 USD
View
A
Retailer 7
-
$1,475 SGD
$1,154 USD
View
A
Retailer 8
-
$1,518 SGD
£935 GBP
View
A
Retailer 9
-
$1,540 SGD
€1,147 EUR
View
B+
Retailer 10
-
$1,553 SGD
$1,215 USD
View
B+
Retailer 11
-
$2,428 SGD
$1,899 USD
View
B+
Retailer 12
-
$2,672 SGD
$2,090 USD
View
B
Retailer 13
-
$2,915 SGD
$2,280 USD
View
B
Retailer 14
-
$3,279 SGD
$2,565 USD
View
B
Retailer 15
-
$4,025 SGD
£2,479 GBP
View
Most Expensive
B
Rare Carat
KI0002080KF551 · Oct 28
$4,609 SGD
$3,605 USD
View
15 more retailers have this diamond
Prices start from $819 SGDSave up to $3,789 SGD

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
5.38ct Radiant
$819 SGD