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Heart|Lab Grown|IGI

1.50ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG837646992

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG837646992

Diamond specifications and retailer prices

From $637 NZD
$359 USD
As of October 30, 2026
Save $5,023 NZD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,051 NZD at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 1.5ct lab-grown heart diamond

This 1.5ct 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 LG837646992 or 837646992. Listed at 14 retailers as of October 30, 2026, with a 789% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837646992
Dimensions7.62 × 7.06 × 4.77 mm
L/W Ratio1.08
Girdle conditionFaceted
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
7.62 mm7.06 mm1.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837646992
Side View
Table 56.0%Crown 35.3°Girdle: STK-VTKPavilion 41°Culet: NoneDepth 62.6%

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: $6,051 NZD|Low: $625 NZD|High: $6,064 NZD|Avg: $2,638 NZD|+2.8%
Novita Diamonds
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
November 1, 2026
Retailer 11$637 NZD
Retailer 7$923 NZD
Retailer 4$1,136 NZD
Retailer 14$1,265 NZD
Retailer 8$1,425 NZD
Retailer 5$1,435 NZD
Retailer 10$2,032 NZD
Retailer 6$2,108 NZD
Retailer 12$2,317 NZD
Retailer 3$2,805 NZD
Retailer 2$3,409 NZD
Retailer 9$4,826 NZD
Retailer 13$5,660 NZD
Novita Diamonds$6,051 NZD

32 data points across 14 retailers

14 retailers$637 NZD to $5,660 NZD

A
Cheapest Retailer
-
$637 NZD
$359 USD
A
Retailer 2
-
$923 NZD
£409 GBP
View
A
Retailer 3
-
$1,136 NZD
$640 USD
View
A
Retailer 4
-
$1,265 NZD
$713 USD
View
A
Retailer 5
-
$1,425 NZD
€765 EUR
View
A
Retailer 6
-
$1,435 NZD
$809 USD
View
A
Retailer 7
-
$2,032 NZD
A$1,762 AUD
View
B+
Retailer 8
-
$2,108 NZD
$1,188 USD
View
B+
Retailer 9
-
$2,317 NZD
$1,306 USD
View
B+
Retailer 10
-
$2,805 NZD
$1,581 USD
View
B+
Retailer 11
-
$3,409 NZD
£1,513 GBP
View
B
Retailer 12
-
$4,826 NZD
$2,720 USD
View
B
Retailer 13
-
$5,660 NZD
$3,190 USD
View
Most Expensive
Novita Diamonds
cert_837646992 · Oct 8
$6,051 NZD
A$5,247 AUD
View
Price last confirmed 24 days ago
13 more retailers have this diamond
Prices start from $637 NZDSave up to $5,023 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
1.50ct Heart
$637 NZD