Cushion|Lab Grown|IGI

12.26ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG625476935

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG625476935

Diamond specifications and retailer prices

From €2,329 EUR
£2,057 GBP
As of November 2, 2026
Save €7,776 EUR (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €10,105 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.26ct lab-grown cushion diamond

This 12.26ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG625476935 or 625476935. Listed at 13 retailers as of October 31, 2026, with prices from €2,329 to €10,105, a €7,776 spread on the same certified stone. Taylor and Hart lists it at €10,105. 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

12.26
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625476935
Dimensions14.83 × 12.42 × 8.07 mm
L/W Ratio1.19
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
14.83 mm12.42 mm12.26 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625476935
Side View
Table 62.0%Crown 39.8°Girdle: MED-STKPavilion 34.9°Culet: NoneDepth 65.0%

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 2
Current: €3,826 EUR|Low: €2,328 EUR|High: €15,977 EUR|Avg: €4,912 EUR|-3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6€2,329 EUR
Retailer 2€2,799 EUR
Retailer 12€2,899 EUR
Retailer 4€3,295 EUR
Retailer 8€3,722 EUR
Retailer 1€3,826 EUR
Retailer 7€3,885 EUR
Retailer 11€4,511 EUR
Retailer 5€4,601 EUR
Retailer 3€8,077 EUR
Retailer 9€8,586 EUR
Retailer 10€9,366 EUR

42 data points across 12 retailers

13 retailers€2,329 EUR to €10,105 EUR

A
Cheapest Retailer
-
€2,329 EUR
£2,057 GBP
A
Retailer 2
-
€2,799 EUR
$3,139 USD
View
Final sale: no returns
Retailer 3
-
€2,899 EUR
$3,252 USD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
€3,295 EUR
$3,696 USD
View
B+
Retailer 5
-
€3,722 EUR
$4,175 USD
View
B+
Retailer 6
-
€3,826 EUR
$4,291 USD
View
B+
Retailer 7
-
€3,885 EUR
£3,431 GBP
View
B+
Retailer 8
-
€4,511 EUR
$5,059 USD
View
B+
Retailer 9
-
€4,601 EUR
View
B
Retailer 10
-
€8,077 EUR
$9,060 USD
View
B
Retailer 11
-
€8,586 EUR
$9,630 USD
View
B
Retailer 12
-
€9,366 EUR
$10,505 USD
View
Most Expensive
B
Taylor and Hart
4LSIRYH · Oct 31
€10,105 EUR
$11,333 USD
View
12 more retailers have this diamond
Prices start from €2,329 EURSave up to €7,776 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
12.26ct Cushion
€2,329 EUR