CaratHunter
Plans
Cushion|Lab Grown|IGI

5.09ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG596332450

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG596332450

Diamond specifications and retailer prices

From $1,059 AUD
£586 GBP
As of October 29, 2026
Save $3,334 AUD (76%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,393 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 5.09ct lab-grown cushion diamond

This 5.09ct lab-grown cushion 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 LG596332450 or 596332450. Listed at 8 retailers as of October 29, 2026, with prices from $1,059 to $4,393, a $3,334 spread on the same certified stone. MOH London lists it at $4,393. 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

5.09
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG596332450
Dimensions11.67 × 9.35 × 6.31 mm
L/W Ratio1.25
Girdle conditionFaceted
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
11.67 mm9.35 mm5.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG596332450
Side View
Table 61.0%Crown 32.4°Girdle: MED-THKPavilion 38.9°Culet: NoneDepth 67.5%

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: Oct 29
Current: $4,393 AUD|Low: $1,059 AUD|High: $9,545 AUD|Avg: $4,007 AUD
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
October 29, 2026
Retailer 8$1,059 AUD
Retailer 9$1,111 AUD
Retailer 6$1,196 AUD
Retailer 7$1,530 AUD
Retailer 11$1,549 AUD
Retailer 2$1,566 AUD
Retailer 12$2,007 AUD
Retailer 10$2,908 AUD
MOH London$4,393 AUD
Retailer 5$6,197 AUD
Retailer 4$6,994 AUD
Retailer 3$9,266 AUD
Retailer 13$9,545 AUD

2 data points across 13 retailers

8 retailers$1,059 AUD to $4,393 AUD

A
Cheapest Retailer
-
$1,059 AUD
£586 GBP
A
Retailer 2
-
$1,111 AUD
HK$6,100 HKD
View
A
Retailer 3
-
$1,196 AUD
$840 USD
View
A
Retailer 4
-
$1,530 AUD
$1,075 USD
View
B+
Retailer 5
-
$1,549 AUD
$1,088 USD
View
A
Retailer 6
-
$1,566 AUD
£866 GBP
View
B+
Retailer 7
-
$2,908 AUD
$2,043 USD
View
Most Expensive
B
MOH London
LG596332450 · Oct 29
$4,393 AUD
£2,430 GBP
View
7 more retailers have this diamond
Prices start from $1,059 AUDSave up to $3,334 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
5.09ct Cushion
$1,059 AUD