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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 $449 NZD
$253 USD
As of October 30, 2026
Save $2,532 NZD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,981 NZD 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 $449 to $2,981, a $2,532 spread on the same certified stone. Brilliant Earth lists it at $2,981. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,981 NZD|Low: $431 NZD|High: $2,981 NZD|Avg: $1,256 NZD
Brilliant Earth
Retailer 2
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Retailer 21
October 30, 2026
Retailer 4$449 NZD
Retailer 12$502 NZD
Retailer 9$520 NZD
Retailer 5$557 NZD
Retailer 14$557 NZD
Retailer 18$843 NZD
Retailer 15$911 NZD
Retailer 7$930 NZD
Retailer 17$956 NZD
Retailer 10$1,027 NZD
Retailer 13$1,060 NZD
Retailer 8$1,167 NZD
Retailer 19$1,296 NZD
Retailer 3$1,398 NZD
Retailer 6$1,788 NZD
Retailer 20$1,846 NZD
Retailer 11$1,880 NZD
Retailer 2$2,101 NZD
Retailer 16$2,242 NZD
Retailer 21$2,374 NZD
Brilliant Earth$2,981 NZD

34 data points across 21 retailers

22 retailers$449 NZD to $2,981 NZD

A
Cheapest Retailer
-
$449 NZD
$253 USD
A
Retailer 2
-
$502 NZD
$283 USD
View
Final sale: no returns
A
Retailer 3
-
$520 NZD
$293 USD
View
A
Retailer 4
-
$557 NZD
$314 USD
View
A
Retailer 5
-
$557 NZD
$314 USD
View
A
Retailer 6
-
$843 NZD
$475 USD
View
A
Retailer 7
-
$911 NZD
€489 EUR
View
A
Retailer 8
-
$930 NZD
$524 USD
View
A
Retailer 9
-
$956 NZD
ZAR 8,703 ZAR
View
A
Retailer 10
-
$1,027 NZD
$579 USD
View
B+
Retailer 11
-
$1,060 NZD
£470 GBP
View
B+
Retailer 12
-
$1,167 NZD
$658 USD
View
B+
Retailer 13
-
$1,296 NZD
A$1,124 AUD
View
B+
Retailer 14
-
$1,398 NZD
$788 USD
View
B
Retailer 15
-
$1,788 NZD
$1,008 USD
View
B+
Retailer 16
-
$1,846 NZD
SGD 1,406 SGD
View
B
Retailer 17
-
$1,880 NZD
$1,059 USD
View
B+
Retailer 18
-
$2,101 NZD
$1,184 USD
View
B+
Retailer 19
-
$2,189 NZD
$1,234 USD
View
B
Retailer 20
-
$2,242 NZD
£995 GBP
View
B
Retailer 21
-
$2,374 NZD
$1,338 USD
View
Most Expensive
B
Brilliant Earth
21417846A · Oct 30
$2,981 NZD
$1,680 USD
View
21 more retailers have this diamond
Prices start from $449 NZDSave up to $2,532 NZD

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
$449 NZD