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Round|Lab Grown|IGI

2.51ct F SI1 Round Lab Grown Diamond

ID • F/SI1

Diamond specifications and retailer prices

From €1,757 EUR
CA$2,726 CAD
As of October 30, 2026
4 retailers carry this diamond
Most expensive: €1,757 EUR at Diamond Exchange Canada
View at Diamond Exchange Canada

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round 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. Listed at 4 retailers as of October 30, 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

2.51
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions8.76 × 8.71 × 5.32 mm
L/W Ratio1.01
Top View
8.76 mm8.71 mm2.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 58.0%CrownGirdle: MediumPavilionCulet: NoneDepth 60.9%

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: €1,757 EUR|Low: €283 EUR|High: €1,757 EUR|Avg: €715 EUR
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 15, 2026
Retailer 4€299 EUR
Retailer 7€347 EUR
Retailer 3€371 EUR
Retailer 8€371 EUR
Retailer 6€502 EUR
Retailer 2€681 EUR
Retailer 5€1,317 EUR
Diamond Exchange Canada€1,757 EUR

27 data points across 8 retailers

4 retailers

Retailer 1
-
€347 EUR
$388 USD
Price last confirmed 20 days ago
Retailer 2
-
€361 EUR
$403 USD
View
Price last confirmed 48 days ago
Retailer 3
-
€681 EUR
£599 GBP
View
Price last confirmed 18 days ago
Most Expensive
B
Diamond Exchange Canada
1986528336 · Oct 30
€1,757 EUR
CA$2,726 CAD
View
3 more retailers have this diamond

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 Round
€1,757 EUR