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Heart|Lab Grown|IGI

1.55ct F SI1 Heart Lab Grown Diamond

VG • F/SI1 • IGI LG594313111

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG594313111

Diamond specifications and retailer prices

From €239 EUR
$268 USD
As of November 1, 2026
Save €1,616 EUR (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,854 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.55ct lab-grown heart diamond

This 1.55ct lab-grown heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG594313111 or 594313111. Listed at 12 retailers as of October 31, 2026, with prices from €239 to €1,854, a €1,616 spread on the same certified stone. Do Amore Diamonds lists it at €1,854. 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

1.55
Carat
F
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594313111
Dimensions7.06 × 7.96 × 4.77 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.
Top View
7.06 mm7.96 mm1.55 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG594313111
Side View
Table 56.0%Crown 37°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,854 EUR|Low: €239 EUR|High: €1,854 EUR|Avg: €641 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 6€239 EUR
Retailer 3€338 EUR
Retailer 9€339 EUR
Retailer 7€409 EUR
Retailer 8€467 EUR
Retailer 4€495 EUR
Retailer 5€771 EUR
Retailer 2€1,058 EUR
Do Amore Diamonds€1,854 EUR

43 data points across 9 retailers

12 retailers€239 EUR to €1,854 EUR

A
Cheapest Retailer
-
€239 EUR
$268 USD
Retailer 2
-
€239 EUR
$268 USD
View
Price last confirmed 30 days ago
A
Retailer 3
-
€338 EUR
£298 GBP
View
A
Retailer 4
-
€339 EUR
$380 USD
View
B+
Retailer 5
-
€409 EUR
$459 USD
View
B+
Retailer 6
-
€467 EUR
$524 USD
View
B+
Retailer 7
-
€495 EUR
£437 GBP
View
B
Retailer 8
-
€771 EUR
$865 USD
View
B
Retailer 9
-
€848 EUR
$951 USD
View
Retailer 10
-
€848 EUR
$951 USD
View
Price last confirmed 32 days ago
B
Retailer 11
-
€1,058 EUR
£934 GBP
View
Most Expensive
B
Do Amore Diamonds
27-8E3FBB8DD · Oct 31
€1,854 EUR
$2,080 USD
View
11 more retailers have this diamond
Prices start from €239 EURSave up to €1,616 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.

A
1.55ct Heart
€239 EUR