Heart|Lab Grown|IGI

1.51ct D SI1 Heart Lab Grown Diamond

D/SI1

Diamond specifications and retailer prices

From €251 EUR
£221 GBP
As of November 2, 2026
Save €146 EUR (37%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €397 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 €251 to €397, a €146 spread on the same certified stone. MoiMoi Australia lists it at €397. 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
Color
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 2
Current: €397 EUR|Low: €126 EUR|High: €418 EUR|Avg: €218 EUR|-4.9%
MoiMoi Australia
Retailer 2
Retailer 3
November 2, 2026
Retailer 3€126 EUR
Retailer 2€251 EUR
MoiMoi Australia€397 EUR

38 data points across 3 retailers

2 retailers€251 EUR to €397 EUR

B+
Cheapest Retailer
-
€251 EUR
£221 GBP
Most Expensive
B+
MoiMoi Australia
423075007 · Nov 1
€397 EUR
A$683 AUD
View
1 more retailer has this diamond
Prices start from €251 EURSave up to €146 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
€251 EUR