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Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG788630904

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG788630904

Diamond specifications and retailer prices

From $2,243 NZD
$1,262 USD
As of November 2, 2026
Save $5,266 NZD (70%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,509 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG788630904 or 788630904. Listed at 6 retailers as of October 31, 2026, with prices from $2,243 to $7,509, a $5,266 spread on the same certified stone. Taylor and Hart lists it at $7,509. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle42.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788630904
Dimensions7.38 × 7.85 × 4.68 mm
L/W Ratio1.06
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
7.38 mm7.85 mm1.51 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788630904
Side View
Table 57.0%Crown 32.4°Girdle: STK-VTKPavilion 42.4°Culet: NoneDepth 59.6%

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: $3,115 NZD|Low: $2,243 NZD|High: $7,509 NZD|Avg: $4,279 NZD|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Taylor and Hart
November 2, 2026
Retailer 5$2,243 NZD
Retailer 4$2,639 NZD
Retailer 3$3,075 NZD
Retailer 1$3,115 NZD
Retailer 2$7,295 NZD
Taylor and Hart$7,509 NZD

41 data points across 6 retailers

6 retailers$2,243 NZD to $7,509 NZD

A
Cheapest Retailer
-
$2,243 NZD
$1,262 USD
B+
Retailer 2
-
$2,639 NZD
$1,485 USD
View
B+
Retailer 3
-
$3,075 NZD
$1,730 USD
View
B+
Retailer 4
-
$3,115 NZD
£1,380 GBP
View
B
Retailer 5
-
$7,295 NZD
£3,232 GBP
View
Most Expensive
B
Taylor and Hart
EQMB2OL · Oct 31
$7,509 NZD
$4,225 USD
View
5 more retailers have this diamond
Prices start from $2,243 NZDSave up to $5,266 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
$2,243 NZD