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Round|Lab Grown|IGI

1.01ct E SI2 Round Lab Grown Diamond

EX • E/SI2 • IGI LG512220554

Shape and cutting style on the report: Round brilliant

Certificate IGI LG512220554

Diamond specifications and retailer prices

From €582 EUR
As of November 5, 2026
Save €519 EUR (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,898 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.01ct lab-grown round diamond

This 1.01ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512220554 or 512220554. Listed at 11 retailers as of November 4, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512220554
Dimensions6.41 × 6.38 × 3.98 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
6.41 mm6.38 mm1.01 ctE / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512220554
Side View
Table 57.0%Crown 34.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €1,065 EUR|Low: €425 EUR|High: €2,877 EUR|Avg: €1,055 EUR|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9€425 EUR
Retailer 4€582 EUR
Retailer 8€651 EUR
Retailer 6€675 EUR
Retailer 5€686 EUR
Retailer 1€1,065 EUR
Retailer 7€1,100 EUR
Retailer 3€1,724 EUR
Retailer 2€2,835 EUR

43 data points across 9 retailers

11 retailers€582 EUR to €1,100 EUR

B
Cheapest Retailer
-
€582 EUR
B
Retailer 2
-
€633 EUR
View
B
Retailer 3
-
€651 EUR
View
Final sale: no returns
Retailer 4
-
€675 EUR
View
Price last confirmed 21 days ago
B
Retailer 5
-
€675 EUR
View
B
Retailer 6
-
€686 EUR
View
B
Retailer 7
-
€1,065 EUR
View
B
Retailer 8
-
€1,100 EUR
View
Retailer 9
-
€1,724 EUR
View
Price under review
Most Expensive
NZ Jewellers
2b6cd39f-7bfd-4dc7-9e52-491bf7a2bcd3 · Nov 5
€1,898 EUR
$2,130 USD
View
Price under review
9 more retailers have this diamond
Prices start from €582 EURSave up to €519 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
1.01ct Round
€582 EUR