Heart|Lab Grown|IGI

1.51ct D SI1 Heart Lab Grown Diamond

D/SI1

Diamond specifications and retailer prices

From €250 EUR
As of November 6, 2026
Save €148 EUR (37%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €398 EUR at MoiMoi Australia · As of November 1, 2026
View at MoiMoi Australia

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 SI1 clarity (slightly-included) and certified by IGI. Listed at 2 retailers as of November 1, 2026, with prices from €250 to €398, a €148 spread on the same certified stone. MoiMoi Australia lists it at €398. 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

1.51
Carat
D
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions7.24 × 7.66 × 4.65 mm
L/W Ratio1.06
Top View
7.24 mm7.66 mm1.51 ctD / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.7%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: €398 EUR|Low: €126 EUR|High: €418 EUR|Avg: €225 EUR|-4.9%
MoiMoi Australia
Retailer 2
Retailer 3
November 6, 2026
Retailer 3€126 EUR
Retailer 2€250 EUR
MoiMoi Australia€398 EUR

39 data points across 3 retailers

2 retailers€250 EUR to €398 EUR

B+
Cheapest Retailer
-
€250 EUR
Most Expensive
B+
MoiMoi Australia
423075007 · Nov 1
€398 EUR
A$683 AUD
View
1 more retailer has this diamond
Prices start from €250 EURSave up to €148 EUR

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+
1.51ct Heart
€250 EUR