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Round|Lab Grown|IGI

1.20ct E SI2 Round Lab Grown Diamond

EX • E/SI2 • IGI LG470147787

Shape and cutting style on the report: Round brilliant

Certificate IGI LG470147787

Diamond specifications and retailer prices

From €720 EUR
As of November 5, 2026
Save €626 EUR (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €2,347 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct lab-grown round diamond

This 1.2ct 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 LG470147787 or 470147787. Listed at 11 retailers as of November 4, 2026, with a 87% 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

1.20
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG470147787
Dimensions6.78 × 6.72 × 4.26 mm
L/W Ratio1.01
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
6.78 mm6.72 mm1.20 ctE / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG470147787
Side View
Table 58.5%Crown 36.2°Girdle: MediumPavilion 41.4°Culet: NoneDepth 63.0%

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: €2,347 EUR|Low: €529 EUR|High: €3,170 EUR|Avg: €1,291 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3€529 EUR
Retailer 6€720 EUR
Retailer 10€783 EUR
Retailer 11€805 EUR
Retailer 7€811 EUR
Retailer 8€835 EUR
Retailer 2€1,263 EUR
Retailer 9€1,346 EUR
Retailer 5€1,985 EUR
NZ Jewellers€2,347 EUR
Retailer 4€3,128 EUR

42 data points across 11 retailers

11 retailers€720 EUR to €1,346 EUR

B
Cheapest Retailer
-
€720 EUR
B
Retailer 2
-
€783 EUR
View
B
Retailer 3
-
€805 EUR
View
Final sale: no returns
B
Retailer 4
-
€811 EUR
View
Retailer 5
-
€835 EUR
View
Price last confirmed 25 days ago
B
Retailer 6
-
€835 EUR
View
B
Retailer 7
-
€1,263 EUR
View
B
Retailer 8
-
€1,346 EUR
View
Retailer 9
-
€1,985 EUR
View
Price under review
Most Expensive
NZ Jewellers
efa00f24-94e7-45dd-a947-64af87c8ff22 · Nov 5
€2,347 EUR
$2,634 USD
View
Price under review
9 more retailers have this diamond
Prices start from €720 EURSave up to €626 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
1.20ct Round
€720 EUR