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Cushion|Lab Grown|IGI

2.56ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG816606217

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG816606217

Diamond specifications and retailer prices

From €388 EUR
$433 USD
As of October 29, 2026
Save €1,387 EUR (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,774 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG816606217 or 816606217. Listed at 15 retailers as of October 29, 2026, with prices from €388 to €1,774, a €1,387 spread on the same certified stone. MOH London lists it at €1,774. 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

2.56
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816606217
Dimensions9.71 × 7.27 × 4.54 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.71 mm7.27 mm2.56 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816606217
Side View
Table 67.0%Crown 35.7°Girdle: STK-THKPavilion 41°Culet: LargeDepth 62.4%

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: €1,774 EUR|Low: €369 EUR|High: €1,774 EUR|Avg: €931 EUR|+1.4%
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
October 31, 2026
Retailer 3€388 EUR
Retailer 11€434 EUR
Retailer 6€472 EUR
Retailer 7€476 EUR
Retailer 4€481 EUR
Retailer 9€609 EUR
Retailer 12€755 EUR
Retailer 2€767 EUR
Retailer 10€772 EUR
Retailer 8€793 EUR
Retailer 14€1,348 EUR
Retailer 15€1,545 EUR
Retailer 5€1,574 EUR
Retailer 13€1,734 EUR
MOH London€1,774 EUR

36 data points across 15 retailers

15 retailers€388 EUR to €1,774 EUR

A
Cheapest Retailer
-
€388 EUR
$433 USD
A
Retailer 2
-
€434 EUR
$485 USD
View
A
Retailer 3
-
€472 EUR
$527 USD
View
Final sale: no returns
Retailer 4
-
€476 EUR
$532 USD
View
Price last confirmed 19 days ago
A
Retailer 5
-
€481 EUR
$537 USD
View
A
Retailer 6
-
€609 EUR
$680 USD
View
B+
Retailer 7
-
€755 EUR
$844 USD
View
A
Retailer 8
-
€767 EUR
View
B+
Retailer 9
-
€772 EUR
$863 USD
View
B+
Retailer 10
-
€793 EUR
£698 GBP
View
B
Retailer 11
-
€1,348 EUR
$1,506 USD
View
B
Retailer 12
-
€1,545 EUR
$1,726 USD
View
B
Retailer 13
-
€1,574 EUR
$1,758 USD
View
B
Retailer 14
-
€1,734 EUR
$1,937 USD
View
Most Expensive
B
MOH London
LG816606217 · Oct 29
€1,774 EUR
£1,561 GBP
View
14 more retailers have this diamond
Prices start from €388 EURSave up to €1,387 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
€388 EUR