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Round|Lab Grown|IGI

1.01ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG455035513

Shape and cutting style on the report: Round brilliant

Certificate IGI LG455035513

Diamond specifications and retailer prices

From €519 EUR
$580 USD
As of October 30, 2026
Save €2,818 EUR (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €3,338 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.01ct lab-grown round diamond

This 1.01ct lab-grown round 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 LG455035513 or 455035513. Listed at 13 retailers as of October 29, 2026, with prices from €519 to €3,338, a €2,818 spread on the same certified stone. MOH London lists it at €3,338. 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
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455035513
Dimensions6.39 × 6.42 × 4.01 mm
L/W Ratio1.00
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 Type IIa
Top View
6.39 mm6.42 mm1.01 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG455035513
Side View
Table 57.0%Crown 34.1°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.5%

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: Oct 30
Current: €3,338 EUR|Low: €519 EUR|High: €3,365 EUR|Avg: €1,425 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 6€519 EUR
Retailer 9€844 EUR
Retailer 5€918 EUR
Retailer 4€945 EUR
Retailer 10€979 EUR
Retailer 12€979 EUR
Retailer 7€1,133 EUR
Retailer 13€1,258 EUR
Retailer 11€1,567 EUR
Retailer 2€1,679 EUR
Retailer 8€2,110 EUR
Retailer 3€2,752 EUR
MOH London€3,338 EUR

44 data points across 13 retailers

13 retailers€519 EUR to €3,338 EUR

A
Cheapest Retailer
-
€519 EUR
$580 USD
B+
Retailer 2
-
€844 EUR
$943 USD
View
B+
Retailer 3
-
€918 EUR
$1,026 USD
View
B+
Retailer 4
-
€945 EUR
$1,056 USD
View
Final sale: no returns
Retailer 5
-
€979 EUR
$1,094 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
€979 EUR
$1,094 USD
View
B+
Retailer 7
-
€1,133 EUR
£997 GBP
View
B+
Retailer 8
-
€1,137 EUR
$1,270 USD
View
B
Retailer 9
-
€1,567 EUR
$1,751 USD
View
B
Retailer 10
-
€1,679 EUR
View
B
Retailer 11
-
€2,110 EUR
$2,357 USD
View
B
Retailer 12
-
€2,752 EUR
$3,075 USD
View
Most Expensive
B
MOH London
LG455035513 · Oct 29
€3,338 EUR
£2,936 GBP
View
12 more retailers have this diamond
Prices start from €519 EURSave up to €2,818 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 Round
€519 EUR