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Cushion|Lab Grown|IGI

2.51ct G SI2 Cushion Lab Grown Diamond

G/SI2 • IGI LG553239590

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG553239590

Diamond specifications and retailer prices

From €1,245 EUR
CA$1,932 CAD
As of October 30, 2026
Save €552 EUR (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €1,797 EUR at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 2.51ct lab-grown cushion diamond

This 2.51ct lab-grown cushion sits in the two to three carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included) and certified by IGI LG553239590 or 553239590. Listed at 2 retailers as of October 30, 2026, with prices from €1,245 to €1,797, a €552 spread on the same certified stone. The Diamond Guys lists it at €1,797. 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

2.51
Carat
G
Color
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG553239590
Dimensions8.33 × 8.12 × 5.14 mm
L/W Ratio1.03
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.
Top View
8.33 mm8.12 mm2.51 ctG / SI2
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG553239590
Side View
Table 65.0%Crown 35.5°Girdle: STK-VTKPavilion 42.3°Culet: NoneDepth 63.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: €1,245 EUR|Low: €1,245 EUR|High: €3,863 EUR|Avg: €2,176 EUR|-67.8%
Retailer 1
The Diamond Guys
October 30, 2026
Retailer 1€1,245 EUR
The Diamond Guys€1,797 EUR

2 data points across 2 retailers

2 retailers€1,245 EUR to €1,797 EUR

B
Cheapest Retailer
-
€1,245 EUR
CA$1,932 CAD
Most Expensive
C
The Diamond Guys
1779253068 · Nov 1
€1,797 EUR
$2,008 USD
View
1 more retailer has this diamond
Prices start from €1,245 EURSave up to €552 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
2.51ct Cushion
€1,245 EUR