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Heart|Lab Grown|IGI

1.58ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG526266743

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG526266743

Diamond specifications and retailer prices

From €289 EUR
$322 USD
As of November 1, 2026
Save €1,564 EUR (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €1,853 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.58ct lab-grown heart diamond

This 1.58ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG526266743 or 526266743. Listed at 9 retailers as of October 31, 2026, with prices from €289 to €1,853, a €1,564 spread on the same certified stone. Do Amore Diamonds lists it at €1,853. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.58
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle44°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526266743
Dimensions7.20 × 7.95 × 4.86 mm
L/W Ratio1.10
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
7.20 mm7.95 mm1.58 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526266743
Side View
Table 62.5%Crown 41.6°Girdle: MED-STKPavilion 44°Culet: NoneDepth 61.1%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: €1,853 EUR|Low: €160 EUR|High: €1,853 EUR|Avg: €636 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 13€160 EUR
Retailer 10€289 EUR
Retailer 11€321 EUR
Retailer 8€348 EUR
Retailer 12€354 EUR
Retailer 3€398 EUR
Retailer 6€423 EUR
Retailer 9€548 EUR
Retailer 5€554 EUR
Retailer 7€772 EUR
Retailer 2€1,058 EUR
Retailer 4€1,216 EUR
Do Amore Diamonds€1,853 EUR

16 data points across 13 retailers

9 retailers€289 EUR to €1,853 EUR

A
Cheapest Retailer
-
€289 EUR
$322 USD
B+
Retailer 2
-
€321 EUR
$359 USD
View
A
Retailer 3
-
€348 EUR
$389 USD
View
A
Retailer 4
-
€354 EUR
$395 USD
View
A
Retailer 5
-
€423 EUR
View
B+
Retailer 6
-
€548 EUR
$612 USD
View
B
Retailer 7
-
€772 EUR
$862 USD
View
B
Retailer 8
-
€1,058 EUR
£931 GBP
View
Most Expensive
B
Do Amore Diamonds
27-300243FD5 · Oct 31
€1,853 EUR
$2,070 USD
View
8 more retailers have this diamond
Prices start from €289 EURSave up to €1,564 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
1.58ct Heart
€289 EUR