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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG632488346

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG632488346

Diamond specifications and retailer prices

From $594 NZD
$335 USD
As of October 30, 2026
Save $5,083 NZD (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $5,678 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 LG632488346 or 632488346. Listed at 22 retailers as of October 30, 2026, with prices from $594 to $5,678, a $5,083 spread on the same certified stone. Brilliant Earth lists it at $5,678. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG632488346
Dimensions7.11 × 8.03 × 4.55 mm
L/W Ratio1.13
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
7.11 mm8.03 mm1.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG632488346
Side View
Table 63.0%Crown 32.7°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 56.7%

Caratlytics Score

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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: $5,678 NZD|Low: $571 NZD|High: $6,175 NZD|Avg: $1,911 NZD|-8.0%
Brilliant Earth
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 2, 2026
Retailer 14$594 NZD
Retailer 6$690 NZD
Retailer 3$736 NZD
Retailer 9$759 NZD
Retailer 5$990 NZD
Retailer 11$1,011 NZD
Retailer 7$1,271 NZD
Retailer 2$1,320 NZD
Retailer 12$1,824 NZD
Retailer 13$2,289 NZD
Retailer 4$2,369 NZD
Retailer 8$2,952 NZD
Retailer 10$4,148 NZD
Brilliant Earth$5,678 NZD

37 data points across 14 retailers

22 retailers$594 NZD to $5,678 NZD

A
Cheapest Retailer
-
$594 NZD
$335 USD
A
Retailer 2
-
$664 NZD
$374 USD
View
Final sale: no returns
A
Retailer 3
-
$690 NZD
$389 USD
View
Retailer 4
-
$736 NZD
$415 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$736 NZD
$415 USD
View
A
Retailer 6
-
$759 NZD
£337 GBP
View
A
Retailer 7
-
$990 NZD
$558 USD
View
A
Retailer 8
-
$1,011 NZD
$570 USD
View
A
Retailer 9
-
$1,271 NZD
ZAR 11,570 ZAR
View
A
Retailer 10
-
$1,320 NZD
£586 GBP
View
A
Retailer 11
-
$1,324 NZD
$746 USD
View
A
Retailer 12
-
$1,824 NZD
$1,028 USD
View
A
Retailer 13
-
$1,824 NZD
$1,028 USD
View
B+
Retailer 14
-
$2,289 NZD
$1,290 USD
View
B+
Retailer 15
-
$2,369 NZD
$1,335 USD
View
B+
Retailer 16
-
$2,446 NZD
$1,379 USD
View
B+
Retailer 17
-
$2,784 NZD
$1,569 USD
View
B+
Retailer 18
-
$2,882 NZD
$1,624 USD
View
B+
Retailer 19
-
$2,952 NZD
£1,310 GBP
View
B
Retailer 20
-
$4,148 NZD
A$3,597 AUD
View
B
Retailer 21
-
$4,935 NZD
£2,190 GBP
View
Most Expensive
B
Brilliant Earth
13387894A · Oct 31
$5,678 NZD
$3,200 USD
View
21 more retailers have this diamond
Prices start from $594 NZDSave up to $5,083 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
$594 NZD