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Heart|Lab Grown|IGI

1.78ct D IF Heart Lab Grown Diamond

D/IF

Diamond specifications and retailer prices

From $1,476 NZD
£655 GBP
As of October 30, 2026
Save $936 NZD (39%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,412 NZD at MoiMoi Australia · As of October 27, 2026
View at MoiMoi Australia

About this 1.78ct lab-grown heart diamond

This 1.78ct 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) and certified by IGI. Listed at 2 retailers as of October 27, 2026, with prices from $1,476 to $2,412, a $936 spread on the same certified stone. MoiMoi Australia lists it at $2,412. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.78
Carat
D
Colour
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions7.36 × 8.30 × 4.93 mm
L/W Ratio1.13
Top View
7.36 mm8.30 mm1.78 ctD / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $2,412 NZD|Low: $1,274 NZD|High: $3,484 NZD|Avg: $1,903 NZD|-30.8%
MoiMoi Australia
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$1,274 NZD
Retailer 2$1,476 NZD
MoiMoi Australia$2,412 NZD

37 data points across 3 retailers

2 retailers$1,476 NZD to $2,412 NZD

A
Cheapest Retailer
-
$1,476 NZD
£655 GBP
Most Expensive
B+
MoiMoi Australia
593053875 · Oct 27
$2,412 NZD
A$2,091 AUD
View
1 more retailer has this diamond
Prices start from $1,476 NZDSave up to $936 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
1.78ct Heart
$1,476 NZD