Cushion|Lab Grown|IGI

2.54ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG639434208

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG639434208

Diamond specifications and retailer prices

From €308 EUR
$345 USD
As of October 31, 2026
11 retailers carry this diamond
Most expensive: €1,881 EUR at Brilliant Earth · As of October 23, 2026
View at Brilliant Earth

About this 2.54ct lab-grown cushion diamond

This 2.54ct lab-grown cushion sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG639434208 or 639434208. Listed at 11 retailers as of October 31, 2026. 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

2.54
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639434208
Dimensions9.93 × 6.92 × 4.75 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.93 mm6.92 mm2.54 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG639434208
Side View
Table 63.0%Crown 37°Girdle: MED-THKPavilion 39.3°Culet: NoneDepth 68.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: €1,881 EUR|Low: €307 EUR|High: €1,953 EUR|Avg: €782 EUR|-3.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 24, 2026
Retailer 10€307 EUR
Retailer 3€308 EUR
Retailer 8€441 EUR
Retailer 9€499 EUR
Retailer 6€512 EUR
Retailer 2€530 EUR
Retailer 11€559 EUR
Retailer 7€838 EUR
Retailer 4€1,235 EUR
Retailer 5€1,462 EUR
Brilliant Earth€1,881 EUR

34 data points across 11 retailers

11 retailers

Retailer 1
-
€307 EUR
$344 USD
Price last confirmed 17 days ago
A
Retailer 2
-
€308 EUR
$345 USD
View
Final sale: no returns
Retailer 3
-
€441 EUR
$495 USD
View
Price last confirmed 10 days ago
Retailer 4
-
€499 EUR
$560 USD
View
Price last confirmed 10 days ago
Retailer 5
-
€512 EUR
View
Price last confirmed 9 days ago
Retailer 6
-
€530 EUR
£468 GBP
View
Price last confirmed 9 days ago
Retailer 7
-
€559 EUR
$627 USD
View
Price last confirmed 9 days ago
Retailer 8
-
€838 EUR
$940 USD
View
Price last confirmed 10 days ago
Retailer 9
-
€1,235 EUR
£1,091 GBP
View
Price last confirmed 12 days ago
Retailer 10
-
€1,462 EUR
$1,640 USD
View
Price last confirmed 12 days ago
Most Expensive
Brilliant Earth
16911276A · Oct 23
€1,881 EUR
$2,110 USD
View
Price last confirmed 10 days ago
10 more retailers have this diamond
Prices start from €308 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
2.54ct Cushion
€308 EUR