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Radiant|Lab Grown|IGI

4.07ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG519243980

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

Certificate IGI LG519243980

Diamond specifications and retailer prices

From $1,223 AUD
$859 USD
As of November 2, 2026
Save $4,094 AUD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,317 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 4.07ct lab-grown radiant diamond

This 4.07ct lab-grown radiant sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG519243980 or 519243980. Listed at 13 retailers as of November 1, 2026, with prices from $1,223 to $5,317, a $4,094 spread on the same certified stone. MOH London lists it at $5,317. 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

4.07
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519243980
Dimensions9.94 × 7.76 × 5.39 mm
L/W Ratio1.28
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
9.94 mm7.76 mm4.07 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG519243980
Side View
Table 67.0%Crown 48.9°Girdle: THK-VTKPavilionCulet: NoneDepth 69.5%

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: $5,317 AUD|Low: $1,174 AUD|High: $10,358 AUD|Avg: $3,811 AUD|-1.1%
MOH London
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
November 1, 2026
Retailer 8$1,223 AUD
Retailer 13$1,331 AUD
Retailer 3$1,370 AUD
Retailer 10$1,419 AUD
Retailer 2$1,666 AUD
Retailer 14$1,892 AUD
Retailer 11$2,281 AUD
Retailer 7$3,261 AUD
Retailer 9$3,630 AUD
Retailer 12$3,989 AUD
Retailer 5$4,720 AUD
MOH London$5,317 AUD
Retailer 6$9,252 AUD
Retailer 4$10,358 AUD

24 data points across 14 retailers

13 retailers$1,223 AUD to $5,317 AUD

A
Cheapest Retailer
-
$1,223 AUD
$859 USD
A
Retailer 2
-
$1,331 AUD
$935 USD
View
A
Retailer 3
-
$1,370 AUD
$962 USD
View
Final sale: no returns
A
Retailer 4
-
$1,419 AUD
$997 USD
View
Retailer 5
-
$1,419 AUD
$997 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$1,666 AUD
$1,170 USD
View
B+
Retailer 7
-
$1,892 AUD
$1,329 USD
View
B+
Retailer 8
-
$2,281 AUD
$1,602 USD
View
B
Retailer 9
-
$3,261 AUD
$2,291 USD
View
B
Retailer 10
-
$3,630 AUD
$2,550 USD
View
B
Retailer 11
-
$3,989 AUD
$2,802 USD
View
B
Retailer 12
-
$4,720 AUD
HK$25,900 HKD
View
Most Expensive
B
MOH London
LG519243980 · Nov 1
$5,317 AUD
£2,941 GBP
View
12 more retailers have this diamond
Prices start from $1,223 AUDSave up to $4,094 AUD

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
4.07ct Radiant
$1,223 AUD