CaratHunter
Plans
Cushion|Lab Grown|IGI

5.06ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG819602558

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG819602558

Diamond specifications and retailer prices

From $1,099 AUD
£608 GBP
As of October 27, 2026
Save $4,595 AUD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,694 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 5.06ct lab-grown cushion diamond

This 5.06ct 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 LG819602558 or 819602558. Listed at 12 retailers as of October 27, 2026, with prices from $1,099 to $5,694, a $4,595 spread on the same certified stone. Brilliant Earth lists it at $5,694. 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

5.06
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819602558
Dimensions11.97 × 8.58 × 5.57 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.97 mm8.58 mm5.06 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819602558
Side View
Table 65.0%Crown 34.3°Girdle: MED-STKPavilion 36.8°Culet: NoneDepth 64.9%

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 27
Current: $5,694 AUD|Low: $945 AUD|High: $5,709 AUD|Avg: $2,508 AUD|-0.2%
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
October 29, 2026
Retailer 5$945 AUD
Retailer 8$1,099 AUD
Retailer 6$1,130 AUD
Retailer 3$1,210 AUD
Retailer 2$1,514 AUD
Retailer 13$1,610 AUD
Retailer 9$1,628 AUD
Retailer 12$2,276 AUD
Retailer 4$2,920 AUD
Retailer 7$3,262 AUD
Retailer 11$4,249 AUD
Retailer 10$4,571 AUD
Brilliant Earth$5,694 AUD

40 data points across 13 retailers

12 retailers$1,099 AUD to $5,694 AUD

A
Cheapest Retailer
-
$1,099 AUD
£608 GBP
A
Retailer 2
-
$1,130 AUD
HK$6,200 HKD
View
A
Retailer 3
-
$1,210 AUD
$850 USD
View
A
Retailer 4
-
$1,514 AUD
€1,013 EUR
View
B+
Retailer 5
-
$1,610 AUD
$1,131 USD
View
A
Retailer 6
-
$1,628 AUD
£900 GBP
View
B+
Retailer 7
-
$2,276 AUD
$1,599 USD
View
B+
Retailer 8
-
$2,920 AUD
$2,051 USD
View
B+
Retailer 9
-
$3,262 AUD
SGD 3,096 SGD
View
Retailer 10
-
$4,249 AUD
$2,985 USD
View
Price last confirmed 9 days ago
Retailer 11
-
$4,571 AUD
£2,528 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
20860613A · Oct 29
$5,694 AUD
$4,000 USD
View
11 more retailers have this diamond
Prices start from $1,099 AUDSave up to $4,595 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
5.06ct Cushion
$1,099 AUD