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Heart|Lab Grown|IGI

1.56ct E VVS1 Heart Lab Grown Diamond

ID • E/VVS1 • IGI LG778640156

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG778640156

Diamond specifications and retailer prices

From $360 AUD
$253 USD
As of October 30, 2026
Save $2,031 AUD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,392 AUD at Brilliant Earth · As of October 30, 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG778640156 or 778640156. Listed at 22 retailers as of October 30, 2026, with prices from $360 to $2,392, a $2,031 spread on the same certified stone. Brilliant Earth lists it at $2,392. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.9°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778640156
Dimensions7.31 × 8.08 × 4.61 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.31 mm8.08 mm1.56 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778640156
Side View
Table 56.0%Crown 29.9°Girdle: STK-THKPavilion 38.2°Culet: NoneDepth 57.1%

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: $2,392 AUD|Low: $346 AUD|High: $2,392 AUD|Avg: $1,008 AUD
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
Retailer 14
Retailer 15
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Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 4$360 AUD
Retailer 12$403 AUD
Retailer 9$417 AUD
Retailer 5$447 AUD
Retailer 14$447 AUD
Retailer 18$676 AUD
Retailer 15$731 AUD
Retailer 7$746 AUD
Retailer 17$767 AUD
Retailer 10$824 AUD
Retailer 13$851 AUD
Retailer 8$937 AUD
Retailer 19$1,040 AUD
Retailer 3$1,122 AUD
Retailer 6$1,435 AUD
Retailer 20$1,481 AUD
Retailer 11$1,508 AUD
Retailer 2$1,686 AUD
Retailer 16$1,799 AUD
Retailer 21$1,905 AUD
Brilliant Earth$2,392 AUD

34 data points across 21 retailers

22 retailers$360 AUD to $2,392 AUD

A
Cheapest Retailer
-
$360 AUD
$253 USD
A
Retailer 2
-
$403 AUD
$283 USD
View
Final sale: no returns
A
Retailer 3
-
$417 AUD
$293 USD
View
A
Retailer 4
-
$447 AUD
$314 USD
View
A
Retailer 5
-
$447 AUD
$314 USD
View
A
Retailer 6
-
$676 AUD
$475 USD
View
A
Retailer 7
-
$731 AUD
€489 EUR
View
A
Retailer 8
-
$746 AUD
$524 USD
View
A
Retailer 9
-
$767 AUD
ZAR 8,703 ZAR
View
A
Retailer 10
-
$824 AUD
$579 USD
View
B+
Retailer 11
-
$851 AUD
£470 GBP
View
B+
Retailer 12
-
$937 AUD
$658 USD
View
B+
Retailer 13
-
$1,040 AUD
View
B+
Retailer 14
-
$1,122 AUD
$788 USD
View
B
Retailer 15
-
$1,435 AUD
$1,008 USD
View
B+
Retailer 16
-
$1,481 AUD
SGD 1,406 SGD
View
B
Retailer 17
-
$1,508 AUD
$1,059 USD
View
B+
Retailer 18
-
$1,686 AUD
$1,184 USD
View
B+
Retailer 19
-
$1,757 AUD
$1,234 USD
View
B
Retailer 20
-
$1,799 AUD
£995 GBP
View
B
Retailer 21
-
$1,905 AUD
$1,338 USD
View
Most Expensive
B
Brilliant Earth
21417846A · Oct 30
$2,392 AUD
$1,680 USD
View
21 more retailers have this diamond
Prices start from $360 AUDSave up to $2,031 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
$360 AUD