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Heart|Lab Grown|IGI

1.56ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG618401846

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG618401846

Diamond specifications and retailer prices

From $1,517 NZD
$855 USD
As of October 30, 2026
Save $6,900 NZD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,417 NZD at With Clarity · As of October 31, 2026
View at With Clarity

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG618401846 or 618401846. Listed at 21 retailers as of October 30, 2026, with prices from $1,517 to $8,417, a $6,900 spread on the same certified stone. With Clarity lists it at $8,417. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618401846
Dimensions7.38 × 7.95 × 4.75 mm
L/W Ratio1.08
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.38 mm7.95 mm1.56 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618401846
Side View
Table 59.0%Crown 38.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 59.7%

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: $6,593 NZD|Low: $1,490 NZD|High: $8,417 NZD|Avg: $3,705 NZD|-3.6%
Retailer 1
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
Retailer 16
Retailer 17
Retailer 18
With Clarity
November 1, 2026
Retailer 7$1,517 NZD
Retailer 3$1,650 NZD
Retailer 14$1,696 NZD
Retailer 16$1,758 NZD
Retailer 4$2,067 NZD
Retailer 17$2,172 NZD
Retailer 5$2,234 NZD
Retailer 9$2,520 NZD
Retailer 11$2,704 NZD
Retailer 13$3,152 NZD
Retailer 18$3,233 NZD
Retailer 15$3,687 NZD
Retailer 12$4,380 NZD
Retailer 2$4,945 NZD
Retailer 6$5,504 NZD
Retailer 8$6,100 NZD
Retailer 1$6,593 NZD
Retailer 10$8,091 NZD
With Clarity$8,417 NZD

31 data points across 19 retailers

21 retailers$1,517 NZD to $8,417 NZD

A
Cheapest Retailer
-
$1,517 NZD
$855 USD
A
Retailer 2
-
$1,650 NZD
$930 USD
View
A
Retailer 3
-
$1,696 NZD
$956 USD
View
Final sale: no returns
A
Retailer 4
-
$1,758 NZD
$991 USD
View
Retailer 5
-
$1,801 NZD
$1,015 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
$2,067 NZD
$1,165 USD
View
B+
Retailer 7
-
$2,172 NZD
$1,224 USD
View
B+
Retailer 8
-
$2,234 NZD
$1,259 USD
View
B+
Retailer 9
-
$2,520 NZD
$1,420 USD
View
B+
Retailer 10
-
$2,704 NZD
£1,200 GBP
View
B+
Retailer 11
-
$3,152 NZD
€1,692 EUR
View
B+
Retailer 12
-
$3,233 NZD
ZAR 29,441 ZAR
View
B+
Retailer 13
-
$3,687 NZD
$2,078 USD
View
B+
Retailer 14
-
$4,380 NZD
A$3,798 AUD
View
B
Retailer 15
-
$4,945 NZD
$2,787 USD
View
B
Retailer 16
-
$5,209 NZD
$2,936 USD
View
B
Retailer 17
-
$5,504 NZD
$3,102 USD
View
B
Retailer 18
-
$6,100 NZD
$3,438 USD
View
B
Retailer 19
-
$6,593 NZD
£2,926 GBP
View
B
Retailer 20
-
$8,091 NZD
$4,560 USD
View
Most Expensive
B
With Clarity
618401846 · Oct 31
$8,417 NZD
$4,744 USD
View
20 more retailers have this diamond
Prices start from $1,517 NZDSave up to $6,900 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
$1,517 NZD