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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 $253 USD
As of October 27, 2026
Save $1,427 USD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,680 USD at Brilliant Earth · As of October 28, 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 27, 2026, with prices from $253 to $1,680, a $1,427 spread on the same certified stone. Brilliant Earth lists it at $1,680. 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
Color
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 27
Current: $1,680 USD|Low: $243 USD|High: $1,680 USD|Avg: $705 USD
Brilliant Earth
Retailer 2
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Retailer 21
October 29, 2026
Retailer 4$253 USD
Retailer 12$283 USD
Retailer 9$293 USD
Retailer 5$314 USD
Retailer 14$314 USD
Retailer 17$475 USD
Retailer 13$513 USD
Retailer 7$524 USD
Retailer 16$539 USD
Retailer 10$579 USD
Retailer 2$596 USD
Retailer 8$658 USD
Retailer 18$731 USD
Retailer 3$788 USD
Retailer 6$1,008 USD
Retailer 20$1,040 USD
Retailer 11$1,059 USD
Retailer 19$1,116 USD
Retailer 15$1,264 USD
Retailer 21$1,338 USD
Brilliant Earth$1,680 USD

34 data points across 21 retailers

22 retailers$253 USD to $1,680 USD

A
Cheapest Retailer
-
$253 USD
A
Retailer 2
-
$283 USD
View
Final sale: no returns
A
Retailer 3
-
$293 USD
View
A
Retailer 4
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$314 USD
View
A
Retailer 5
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$314 USD
View
A
Retailer 6
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$475 USD
View
A
Retailer 7
-
$513 USD
€489 EUR
View
A
Retailer 8
-
$524 USD
View
A
Retailer 9
-
$539 USD
ZAR 8,703 ZAR
View
A
Retailer 10
-
$579 USD
View
B+
Retailer 11
-
$596 USD
£469 GBP
View
B+
Retailer 12
-
$658 USD
View
B+
Retailer 13
-
$731 USD
A$1,124 AUD
View
B+
Retailer 14
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$788 USD
View
B
Retailer 15
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$1,008 USD
View
B+
Retailer 16
-
$1,040 USD
SGD 1,406 SGD
View
B
Retailer 17
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$1,059 USD
View
B
Retailer 18
-
$1,116 USD
View
B+
Retailer 19
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$1,234 USD
View
B
Retailer 20
-
$1,264 USD
£995 GBP
View
B
Retailer 21
-
$1,338 USD
View
Most Expensive
B
Brilliant Earth
21417846A · Oct 28
$1,680 USD
View
21 more retailers have this diamond
Prices start from $253 USDSave up to $1,427 USD

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
$253 USD