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Round|Lab Grown|IGI

1.12ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG487173757

Shape and cutting style on the report: Round brilliant

Certificate IGI LG487173757

Diamond specifications and retailer prices

From €508 EUR
As of November 5, 2026
Save €780 EUR (61%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €2,243 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.12ct lab-grown round diamond

This 1.12ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG487173757 or 487173757. Listed at 12 retailers as of November 4, 2026, with a 154% 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

1.12
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487173757
Dimensions6.67 × 6.63 × 4.15 mm
L/W Ratio1.01
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
6.67 mm6.63 mm1.12 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487173757
Side View
Table 55.5%Crown 36.1°Girdle: MediumPavilion 40.5°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €1,205 EUR|Low: €508 EUR|High: €3,030 EUR|Avg: €1,248 EUR|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3€508 EUR
Retailer 5€688 EUR
Retailer 8€770 EUR
Retailer 6€797 EUR
Retailer 9€953 EUR
Retailer 1€1,205 EUR
Retailer 7€1,288 EUR
Retailer 4€1,897 EUR
Retailer 2€2,981 EUR

41 data points across 9 retailers

12 retailers€508 EUR to €1,288 EUR

B+
Cheapest Retailer
-
€508 EUR
B
Retailer 2
-
€688 EUR
View
B
Retailer 3
-
€748 EUR
View
B
Retailer 4
-
€770 EUR
View
Final sale: no returns
Retailer 5
-
€797 EUR
View
Price last confirmed 25 days ago
B
Retailer 6
-
€797 EUR
View
B
Retailer 7
-
€953 EUR
View
B
Retailer 8
-
€1,205 EUR
View
B
Retailer 9
-
€1,288 EUR
View
Retailer 10
-
€1,897 EUR
View
Price under review
Most Expensive
NZ Jewellers
efe87a5a-c940-4b09-8840-23d38f45134d · Nov 5
€2,243 EUR
$2,517 USD
View
Price under review
10 more retailers have this diamond
Prices start from €508 EURSave up to €780 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+
1.12ct Round
€508 EUR