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Heart|Lab Grown|IGI

1.39ct E SI1 Heart Lab Grown Diamond

E/SI1

Diamond specifications and retailer prices

From €302 EUR
£266 GBP
As of October 30, 2026
Save €478 EUR (61%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €780 EUR at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

About this 1.39ct lab-grown heart diamond

This 1.39ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included) and certified by IGI. Listed at 2 retailers as of October 30, 2026, with prices from €302 to €780, a €478 spread on the same certified stone. Diamond Exchange Canada lists it at €780. 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

1.39
Carat
E
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions6.59 × 7.72 × 4.72 mm
L/W Ratio1.17
Top View
6.59 mm7.72 mm1.39 ctE / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 61.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €780 EUR|Low: €301 EUR|High: €780 EUR|Avg: €542 EUR
Diamond Exchange Canada
Retailer 2
October 30, 2026
Retailer 2€302 EUR
Diamond Exchange Canada€780 EUR

32 data points across 2 retailers

2 retailers€302 EUR to €780 EUR

B+
Cheapest Retailer
-
€302 EUR
£266 GBP
Most Expensive
C
Diamond Exchange Canada
1986486502 · Oct 30
€780 EUR
CA$1,211 CAD
View
1 more retailer has this diamond
Prices start from €302 EURSave up to €478 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+
1.39ct Heart
€302 EUR