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Heart|Lab Grown|IGI

1.56ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG650418795

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG650418795

Diamond specifications and retailer prices

From $313 AUD
$220 USD
As of October 30, 2026
Save $1,267 AUD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,580 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.56ct lab-grown heart diamond

This 1.56ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG650418795 or 650418795. Listed at 13 retailers as of October 29, 2026, with prices from $313 to $1,580, a $1,267 spread on the same certified stone. Brilliant Earth lists it at $1,580. 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

1.56
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG650418795
Dimensions6.99 × 7.90 × 4.71 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.99 mm7.90 mm1.56 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG650418795
Side View
Table 56.0%Crown 36.6°Girdle: STK-VTKPavilion 37.5°Culet: NoneDepth 59.6%

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: Oct 30
Current: $1,580 AUD|Low: $210 AUD|High: $1,637 AUD|Avg: $755 AUD|-3.5%
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 30, 2026
Retailer 5$210 AUD
Retailer 3$313 AUD
Retailer 10$350 AUD
Retailer 12$363 AUD
Retailer 6$387 AUD
Retailer 11$520 AUD
Retailer 13$692 AUD
Retailer 2$719 AUD
Retailer 8$752 AUD
Retailer 4$1,041 AUD
Retailer 9$1,246 AUD
Retailer 7$1,562 AUD
Brilliant Earth$1,580 AUD

43 data points across 13 retailers

13 retailers$313 AUD to $1,580 AUD

A
Cheapest Retailer
-
$313 AUD
$220 USD
A
Retailer 2
-
$350 AUD
$246 USD
View
Final sale: no returns
A
Retailer 3
-
$363 AUD
$255 USD
View
A
Retailer 4
-
$387 AUD
$272 USD
View
A
Retailer 5
-
$400 AUD
$281 USD
View
B+
Retailer 6
-
$520 AUD
$365 USD
View
B+
Retailer 7
-
$692 AUD
$486 USD
View
B+
Retailer 8
-
$719 AUD
£398 GBP
View
B+
Retailer 9
-
$752 AUD
$528 USD
View
B
Retailer 10
-
$1,041 AUD
$731 USD
View
B
Retailer 11
-
$1,246 AUD
$875 USD
View
B
Retailer 12
-
$1,562 AUD
£864 GBP
View
Most Expensive
B
Brilliant Earth
12163591A · Oct 29
$1,580 AUD
$1,110 USD
View
12 more retailers have this diamond
Prices start from $313 AUDSave up to $1,267 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
1.56ct Heart
$313 AUD