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Round|Lab Grown|GCAL

2.50ct F SI2 Round Lab Grown Diamond

VG • F/SI2

Diamond specifications and retailer prices

From £296 GBP
As of November 5, 2026
Save £1,411 GBP (83%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,708 GBP at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

About this 2.5ct lab-grown round diamond

This 2.5ct lab-grown round sits in the two to three carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GCAL. Listed at 4 retailers as of November 5, 2026, with prices from £296 to £1,708, a £1,411 spread on the same certified stone. Diamond Exchange Canada lists it at £1,708. 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

2.50
Carat
F
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGCAL
Dimensions8.65 × 8.70 × 5.40 mm
L/W Ratio1.01
Top View
8.65 mm8.70 mm2.50 ctF / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCuletDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £1,708 GBP|Low: £241 GBP|High: £1,708 GBP|Avg: £656 GBP
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 20, 2026
Retailer 6£241 GBP
Retailer 5£294 GBP
Retailer 2£296 GBP
Retailer 3£317 GBP
Retailer 4£1,058 GBP
Diamond Exchange Canada£1,708 GBP

8 data points across 6 retailers

4 retailers£296 GBP to £1,708 GBP

B+
Cheapest Retailer
-
£296 GBP
Retailer 2
-
£317 GBP
View
Price last confirmed 12 days ago
Retailer 3
-
£371 GBP
View
Price last confirmed 52 days ago
Most Expensive
C
Diamond Exchange Canada
1986528364 · Nov 5
£1,708 GBP
CA$3,192 CAD
View
3 more retailers have this diamond
Prices start from £296 GBPSave up to £1,411 GBP

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+
2.50ct Round
£296 GBP