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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 €510 EUR
$570 USD
As of October 30, 2026
Save €784 EUR (61%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,906 EUR at Friendly Diamonds · As of October 30, 2026
View at Friendly Diamonds

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 October 30, 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,906 EUR|Low: €510 EUR|High: €3,044 EUR|Avg: €1,247 EUR
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2€510 EUR
Retailer 5€691 EUR
Retailer 8€773 EUR
Retailer 6€801 EUR
Retailer 9€958 EUR
Retailer 3€1,224 EUR
Retailer 7€1,294 EUR
Friendly Diamonds€1,906 EUR
Retailer 4€3,008 EUR

37 data points across 9 retailers

12 retailers€510 EUR to €1,294 EUR

B+
Cheapest Retailer
-
€510 EUR
$570 USD
B
Retailer 2
-
€691 EUR
$772 USD
View
B
Retailer 3
-
€752 EUR
$840 USD
View
B
Retailer 4
-
€773 EUR
$864 USD
View
Final sale: no returns
Retailer 5
-
€801 EUR
$895 USD
View
Price last confirmed 20 days ago
B
Retailer 6
-
€801 EUR
$895 USD
View
B
Retailer 7
-
€958 EUR
$1,070 USD
View
B
Retailer 8
-
€1,224 EUR
£1,077 GBP
View
B
Retailer 9
-
€1,294 EUR
$1,446 USD
View
Most Expensive
Friendly Diamonds
1595038 · Oct 30
€1,906 EUR
$2,129 USD
View
Price under review
9 more retailers have this diamond
Prices start from €510 EURSave up to €784 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
€510 EUR