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Heart|Lab Grown|IGI

0.43ct D SI1 Heart Lab Grown Diamond

GD • D/SI1 • IGI LG644430251

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG644430251

Diamond specifications and retailer prices

From $615 NZD
£273 GBP
As of October 29, 2026
1 retailer carries this diamond
Only listing: $615 NZD at MD Diamonds and Jewellers
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at MD Diamonds and Jewellers

About this 0.43ct lab-grown heart diamond

This 0.43ct lab-grown heart sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG644430251 or 644430251. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

0.43
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle28.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644430251
Dimensions5.22 × 4.49 × 3.06 mm
L/W Ratio1.16
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
5.22 mm4.49 mm0.43 ctD / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG644430251
Side View
Table 49.0%Crown 28.3°Girdle: MED-VTKPavilion 40.3°Culet: NoneDepth 58.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $615 NZD|Low: $133 NZD|High: $1,122 NZD|Avg: $674 NZD
MD Diamonds and Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
May 30, 2026
Retailer 6$365 NZD
Retailer 2$385 NZD
Retailer 5$417 NZD
Retailer 3$511 NZD
MD Diamonds and Jewellers$615 NZD
Retailer 4$674 NZD
Retailer 9$712 NZD
Retailer 8$771 NZD
Retailer 7$806 NZD
Retailer 10$1,093 NZD

68 data points across 10 retailers

1 retailer

B+
MD Diamonds and Jewellers
LG644430251 · Oct 29
$615 NZD
£273 GBP
View

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.

B+
0.43ct Heart
$615 NZD