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Cushion|Lab Grown|IGI

2.56ct F SI1 Cushion Lab Grown Diamond

VG • F/SI1 • IGI LG804638268

Shape and cutting style on the report: Square cushion antique cut

Certificate IGI LG804638268

Diamond specifications and retailer prices

From €495 EUR
$555 USD
As of October 29, 2026
Save €2,183 EUR (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €2,678 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 2.56ct lab-grown cushion diamond

This 2.56ct lab-grown cushion sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG804638268 or 804638268. Listed at 15 retailers as of October 29, 2026, with prices from €495 to €2,678, a €2,183 spread on the same certified stone. MOH London lists it at €2,678. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.56
Carat
F
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804638268
Dimensions8.41 × 8.26 × 4.76 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.41 mm8.26 mm2.56 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804638268
Side View
Table 59.0%Crown 37.3°Girdle: MED-STKPavilion 39.9°Culet: LargeDepth 57.6%

Caratlytics Score

How it works →
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: Oct 29
Current: €2,678 EUR|Low: €471 EUR|High: €2,678 EUR|Avg: €1,061 EUR|+4.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 5€495 EUR
Retailer 11€554 EUR
Retailer 9€611 EUR
Retailer 6€613 EUR
Retailer 14€613 EUR
Retailer 10€731 EUR
Retailer 13€795 EUR
Retailer 8€932 EUR
Retailer 15€947 EUR
Retailer 2€949 EUR
Retailer 12€974 EUR
Retailer 16€1,583 EUR
Retailer 4€1,614 EUR
Retailer 7€1,990 EUR
Retailer 3€2,074 EUR
MOH London€2,678 EUR

40 data points across 16 retailers

15 retailers€495 EUR to €2,678 EUR

A
Cheapest Retailer
-
€495 EUR
$555 USD
A
Retailer 2
-
€554 EUR
$621 USD
View
B+
Retailer 3
-
€611 EUR
$685 USD
View
Final sale: no returns
Retailer 4
-
€613 EUR
$688 USD
View
Price last confirmed 17 days ago
B+
Retailer 5
-
€613 EUR
$688 USD
View
B+
Retailer 6
-
€731 EUR
$820 USD
View
B+
Retailer 7
-
€795 EUR
$892 USD
View
B+
Retailer 8
-
€932 EUR
A$1,608 AUD
View
B+
Retailer 9
-
€947 EUR
$1,062 USD
View
B+
Retailer 10
-
€949 EUR
£838 GBP
View
B
Retailer 11
-
€1,583 EUR
$1,776 USD
View
B
Retailer 12
-
€1,614 EUR
$1,810 USD
View
B
Retailer 13
-
€1,990 EUR
$2,232 USD
View
B
Retailer 14
-
€2,074 EUR
$2,326 USD
View
Most Expensive
B
MOH London
LG804638268 · Oct 29
€2,678 EUR
£2,365 GBP
View
14 more retailers have this diamond
Prices start from €495 EURSave up to €2,183 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
2.56ct Cushion
€495 EUR