CaratHunter
Plans
Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG799613631

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG799613631

Diamond specifications and retailer prices

From $908 NZD
$512 USD
As of November 1, 2026
Save $4,202 NZD (82%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,110 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799613631 or 799613631. Listed at 7 retailers as of October 31, 2026, with prices from $908 to $5,110, a $4,202 spread on the same certified stone. Brilliant Earth lists it at $5,110. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799613631
Dimensions7.90 × 7.08 × 4.68 mm
L/W Ratio1.12
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
7.90 mm7.08 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799613631
Side View
Table 62.0%Crown 39.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 59.2%

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: Nov 1
Current: $5,110 NZD|Low: $869 NZD|High: $5,252 NZD|Avg: $2,092 NZD|-2.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 6$908 NZD
Retailer 5$1,114 NZD
Retailer 9$1,148 NZD
Retailer 10$1,212 NZD
Retailer 11$1,297 NZD
Retailer 7$1,714 NZD
Retailer 8$2,115 NZD
Retailer 4$2,342 NZD
Retailer 2$2,632 NZD
Retailer 3$2,954 NZD
Brilliant Earth$5,110 NZD

25 data points across 11 retailers

7 retailers$908 NZD to $5,110 NZD

A
Cheapest Retailer
-
$908 NZD
$512 USD
A
Retailer 2
-
$1,114 NZD
$628 USD
View
A
Retailer 3
-
$1,714 NZD
$966 USD
View
B+
Retailer 4
-
$2,115 NZD
$1,192 USD
View
B+
Retailer 5
-
$2,342 NZD
$1,320 USD
View
B+
Retailer 6
-
$2,632 NZD
£1,168 GBP
View
Most Expensive
B
Brilliant Earth
19934876A · Oct 31
$5,110 NZD
$2,880 USD
View
6 more retailers have this diamond
Prices start from $908 NZDSave up to $4,202 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
1.51ct Heart
$908 NZD