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Radiant|Lab Grown|IGI

5.03ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG618450557

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

Certificate IGI LG618450557

Diamond specifications and retailer prices

From $638 SGD
$499 USD
As of October 30, 2026
Save $4,719 SGD (88%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,356 SGD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 5.03ct lab-grown radiant diamond

This 5.03ct 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 LG618450557 or 618450557. Listed at 16 retailers as of October 30, 2026, with prices from $638 to $5,356, a $4,719 spread on the same certified stone. Brilliant Earth lists it at $5,356. 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

5.03
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618450557
Dimensions12.15 × 8.35 × 5.72 mm
L/W Ratio1.46
Culet sizePointed
Top View
12.15 mm8.35 mm5.03 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618450557
Side View
Table 65.0%Crown 45°Girdle: MediumPavilion 35.7°Culet: NoneDepth 68.5%

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: $5,356 SGD|Low: $638 SGD|High: $6,481 SGD|Avg: $1,946 SGD|-17.4%
Brilliant Earth
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
October 30, 2026
Retailer 15$638 SGD
Retailer 10$715 SGD
Retailer 3$791 SGD
Retailer 5$791 SGD
Retailer 14$833 SGD
Retailer 4$1,195 SGD
Retailer 6$1,230 SGD
Retailer 2$1,317 SGD
Retailer 13$1,354 SGD
Retailer 7$1,364 SGD
Retailer 11$2,043 SGD
Retailer 16$2,083 SGD
Retailer 8$2,526 SGD
Retailer 9$3,322 SGD
Retailer 12$3,752 SGD
Brilliant Earth$5,356 SGD

38 data points across 16 retailers

16 retailers$638 SGD to $5,356 SGD

A
Cheapest Retailer
-
$638 SGD
$499 USD
A
Retailer 2
-
$715 SGD
$559 USD
View
A
Retailer 3
-
$791 SGD
$619 USD
View
Retailer 4
-
$791 SGD
$619 USD
View
Price last confirmed 15 days ago
Retailer 5
-
$833 SGD
£513 GBP
View
Price last confirmed 14 days ago
A
Retailer 6
-
$1,195 SGD
$935 USD
View
B+
Retailer 7
-
$1,230 SGD
$962 USD
View
A
Retailer 8
-
$1,317 SGD
£811 GBP
View
Retailer 9
-
$1,354 SGD
€1,009 EUR
View
Price last confirmed 7 days ago
A
Retailer 10
-
$1,364 SGD
$1,067 USD
View
B+
Retailer 11
-
$2,043 SGD
$1,598 USD
View
B+
Retailer 12
-
$2,083 SGD
$1,629 USD
View
B+
Retailer 13
-
$2,526 SGD
$1,976 USD
View
B
Retailer 14
-
$3,322 SGD
£2,046 GBP
View
B
Retailer 15
-
$3,752 SGD
$2,935 USD
View
Most Expensive
B
Brilliant Earth
9016856A · Oct 30
$5,356 SGD
$4,190 USD
View
15 more retailers have this diamond
Prices start from $638 SGDSave up to $4,719 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
5.03ct Radiant
$638 SGD