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Heart|Lab Grown|IGI

1.01ct J SI1 Heart Lab Grown Diamond

ID • J/SI1 • IGI LG436073557

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG436073557

Diamond specifications and retailer prices

From €546 EUR
$610 USD
As of October 31, 2026
Save €2,684 EUR (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,230 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.01ct lab-grown heart diamond

This 1.01ct lab-grown heart sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436073557 or 436073557. Listed at 11 retailers as of October 29, 2026, with prices from €546 to €3,230, a €2,684 spread on the same certified stone. MOH London lists it at €3,230. 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

1.01
Carat
J
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.8°
Pavilion angle43.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436073557
Dimensions6.85 × 6.23 × 4.10 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Top View
6.85 mm6.23 mm1.01 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436073557
Side View
Table 61.0%Crown 35.8°Girdle: MED-VTKPavilion 43.4°Culet: NoneDepth 59.9%

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: Oct 31
Current: €3,230 EUR|Low: €546 EUR|High: €3,251 EUR|Avg: €1,564 EUR|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2€546 EUR
Retailer 4€816 EUR
Retailer 7€914 EUR
Retailer 5€947 EUR
Retailer 8€1,105 EUR
Retailer 9€1,384 EUR
Retailer 6€1,519 EUR
Retailer 3€2,107 EUR
Retailer 10€2,712 EUR
MOH London€3,230 EUR

13 data points across 10 retailers

11 retailers€546 EUR to €3,230 EUR

A
Cheapest Retailer
-
€546 EUR
$610 USD
B+
Retailer 2
-
€816 EUR
$912 USD
View
B
Retailer 3
-
€888 EUR
$992 USD
View
B
Retailer 4
-
€914 EUR
$1,021 USD
View
Final sale: no returns
B
Retailer 5
-
€947 EUR
$1,058 USD
View
Retailer 6
-
€947 EUR
$1,058 USD
View
Price last confirmed 20 days ago
B
Retailer 7
-
€1,105 EUR
$1,235 USD
View
B
Retailer 8
-
€1,519 EUR
$1,697 USD
View
B
Retailer 9
-
€2,107 EUR
$2,354 USD
View
C
Retailer 10
-
€2,663 EUR
$2,975 USD
View
Most Expensive
B
MOH London
LG436073557 · Oct 29
€3,230 EUR
£2,841 GBP
View
10 more retailers have this diamond
Prices start from €546 EURSave up to €2,684 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
1.01ct Heart
€546 EUR