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Radiant|Lab Grown|IGI

5.20ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG621479819

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

Certificate IGI LG621479819

Diamond specifications and retailer prices

From $1,432 SGD
$1,120 USD
As of November 2, 2026
Save $2,941 SGD (67%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,374 SGD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 5.2ct lab-grown radiant diamond

This 5.2ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG621479819 or 621479819. Listed at 7 retailers as of November 1, 2026, with prices from $1,432 to $4,374, a $2,941 spread on the same certified stone. Rare Carat lists it at $4,374. 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

5.20
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621479819
Dimensions12.82 × 8.54 × 5.51 mm
L/W Ratio1.50
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
12.82 mm8.54 mm5.20 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621479819
Side View
Table 66.0%Crown 42.8°Girdle: THN-MEDPavilion 33.2°Culet: NoneDepth 64.5%

Caratlytics Score

How it works →
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: Nov 2
Current: $1,532 SGD|Low: $1,379 SGD|High: $4,303 SGD|Avg: $2,243 SGD|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 3, 2026
Retailer 4$1,432 SGD
Retailer 3$1,498 SGD
Retailer 1$1,532 SGD
Retailer 5$1,776 SGD
Retailer 6$3,160 SGD
Retailer 2$4,246 SGD

41 data points across 6 retailers

7 retailers$1,432 SGD to $4,374 SGD

A
Cheapest Retailer
-
$1,432 SGD
$1,120 USD
B+
Retailer 2
-
$1,498 SGD
$1,171 USD
View
A
Retailer 3
-
$1,532 SGD
£943 GBP
View
B+
Retailer 4
-
$1,776 SGD
$1,389 USD
View
B
Retailer 5
-
$3,160 SGD
$2,471 USD
View
B
Retailer 6
-
$4,246 SGD
£2,614 GBP
View
Most Expensive
B
Rare Carat
DB-111-17_l_621479819 · Nov 1
$4,374 SGD
$3,420 USD
View
6 more retailers have this diamond
Prices start from $1,432 SGDSave up to $2,941 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
5.20ct Radiant
$1,432 SGD