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Cushion|Lab Grown|IGI

1.15ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG653439405

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG653439405

Diamond specifications and retailer prices

From €215 EUR
As of November 6, 2026
Save €1,272 EUR (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,845 EUR at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.15ct lab-grown cushion diamond

This 1.15ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG653439405 or 653439405. Listed at 10 retailers as of November 6, 2026, with a 592% 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

1.15
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG653439405
Dimensions6.22 × 6.10 × 4.01 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.22 mm6.10 mm1.15 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG653439405
Side View
Table 62.0%Crown 31.1°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 65.7%

Caratlytics Score

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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: Nov 6
Current: €1,845 EUR|Low: €113 EUR|High: €1,845 EUR|Avg: €679 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 8€215 EUR
Retailer 6€238 EUR
Retailer 10€272 EUR
Retailer 11€320 EUR
Retailer 7€488 EUR
Retailer 2€491 EUR
Retailer 4€519 EUR
Retailer 12€600 EUR
Retailer 3€954 EUR
Retailer 9€997 EUR
Retailer 5€1,052 EUR
Do Amore Diamonds€1,845 EUR

43 data points across 12 retailers

10 retailers€215 EUR to €1,487 EUR

A
Cheapest Retailer
-
€215 EUR
Final sale: no returns
Retailer 2
-
€238 EUR
View
Price last confirmed 22 days ago
A
Retailer 3
-
€272 EUR
View
A
Retailer 4
-
€320 EUR
View
B+
Retailer 5
-
€488 EUR
View
B+
Retailer 6
-
€491 EUR
View
B
Retailer 7
-
€997 EUR
View
B
Retailer 8
-
€1,052 EUR
View
B
Retailer 9
-
€1,487 EUR
View
Most Expensive
Do Amore Diamonds
27-FFC2DA70E · Nov 6
€1,845 EUR
$2,060 USD
View
Price under review
9 more retailers have this diamond
Prices start from €215 EURSave up to €1,272 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
1.15ct Cushion
€215 EUR