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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 $1,120 USD
As of November 2, 2026
Save $2,200 USD (66%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,320 USD at MOH London · As of November 1, 2026
View at MOH London

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 6 retailers as of November 1, 2026, with prices from $1,120 to $3,320, a $2,200 spread on the same certified stone. MOH London lists it at $3,320. 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
Color
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: $3,320 USD|Low: $1,078 USD|High: $3,364 USD|Avg: $1,747 USD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 4$1,120 USD
Retailer 3$1,171 USD
Retailer 2$1,198 USD
Retailer 5$1,389 USD
Retailer 6$2,471 USD
MOH London$3,320 USD

41 data points across 6 retailers

6 retailers$1,120 USD to $3,320 USD

A
Cheapest Retailer
-
$1,120 USD
B+
Retailer 2
-
$1,171 USD
View
A
Retailer 3
-
$1,198 USD
£943 GBP
View
B+
Retailer 4
-
$1,389 USD
View
B
Retailer 5
-
$2,471 USD
View
Most Expensive
B
MOH London
LG621479819 · Nov 1
$3,320 USD
£2,614 GBP
View
5 more retailers have this diamond
Prices start from $1,120 USDSave up to $2,200 USD

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
$1,120 USD