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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG735517685

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG735517685

Diamond specifications and retailer prices

From $656 NZD
$370 USD
As of November 2, 2026
Save $2,523 NZD (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,179 NZD at MOH London · As of November 1, 2026
View at MOH London

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 LG735517685 or 735517685. Listed at 21 retailers as of November 1, 2026, with prices from $656 to $3,179, a $2,523 spread on the same certified stone. MOH London lists it at $3,179. 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 angle40.8°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735517685
Dimensions7.37 × 7.76 × 4.46 mm
L/W Ratio1.05
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
7.37 mm7.76 mm1.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735517685
Side View
Table 60.0%Crown 40.8°Girdle: MED-THKPavilion 36.7°Culet: NoneDepth 57.5%

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 2
Current: $3,179 NZD|Low: $630 NZD|High: $3,218 NZD|Avg: $1,560 NZD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 11$656 NZD
Retailer 12$814 NZD
Retailer 2$838 NZD
Retailer 9$1,082 NZD
Retailer 4$1,091 NZD
Retailer 7$1,306 NZD
Retailer 5$1,403 NZD
Retailer 6$1,469 NZD
Retailer 8$1,888 NZD
Retailer 10$2,386 NZD
Retailer 3$2,835 NZD
MOH London$3,179 NZD

34 data points across 12 retailers

21 retailers$656 NZD to $3,179 NZD

A
Cheapest Retailer
-
$656 NZD
$370 USD
A
Retailer 2
-
$733 NZD
$413 USD
View
Final sale: no returns
A
Retailer 3
-
$761 NZD
$429 USD
View
Retailer 4
-
$814 NZD
$459 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$814 NZD
$459 USD
View
A
Retailer 6
-
$838 NZD
£372 GBP
View
A
Retailer 7
-
$1,082 NZD
$610 USD
View
A
Retailer 8
-
$1,091 NZD
$615 USD
View
A
Retailer 9
-
$1,263 NZD
$712 USD
View
A
Retailer 10
-
$1,306 NZD
€701 EUR
View
A
Retailer 11
-
$1,403 NZD
ZAR 12,775 ZAR
View
A
Retailer 12
-
$1,469 NZD
£652 GBP
View
A
Retailer 13
-
$1,847 NZD
$1,041 USD
View
A
Retailer 14
-
$1,888 NZD
A$1,637 AUD
View
B+
Retailer 15
-
$2,386 NZD
$1,345 USD
View
B+
Retailer 16
-
$2,612 NZD
$1,472 USD
View
B+
Retailer 17
-
$2,615 NZD
$1,474 USD
View
B+
Retailer 18
-
$2,685 NZD
$1,514 USD
View
B+
Retailer 19
-
$2,835 NZD
$1,598 USD
View
B
Retailer 20
-
$3,073 NZD
$1,732 USD
View
Most Expensive
B+
MOH London
LG735517685 · Nov 1
$3,179 NZD
£1,411 GBP
View
20 more retailers have this diamond
Prices start from $656 NZDSave up to $2,523 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
$656 NZD