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Round|Lab Grown|GCAL

2.50ct H SI1 Round Lab Grown Diamond

VG • H/SI1

Diamond specifications and retailer prices

From £250 GBP
As of November 5, 2026
Save £1,411 GBP (85%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,662 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GCAL. Listed at 7 retailers as of November 5, 2026, with prices from £250 to £1,662, a £1,411 spread on the same certified stone. Diamond Exchange Canada lists it at £1,662. 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
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGCAL
Dimensions8.55 × 8.59 × 5.37 mm
L/W Ratio1.00
Top View
8.55 mm8.59 mm2.50 ctH / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGCAL
Side View
Table 57.0%CrownGirdle: VTN-THKPavilionCuletDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: £1,662 GBP|Low: £224 GBP|High: £1,662 GBP|Avg: £647 GBP
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 20, 2026
Retailer 3£250 GBP
Retailer 2£290 GBP
Retailer 5£310 GBP
Retailer 6£367 GBP
Retailer 4£1,100 GBP
Diamond Exchange Canada£1,662 GBP

12 data points across 6 retailers

7 retailers£250 GBP to £1,662 GBP

B+
Cheapest Retailer
-
£250 GBP
Retailer 2
-
£270 GBP
View
Price last confirmed 35 days ago
B+
Retailer 3
-
£290 GBP
View
B+
Retailer 4
-
£310 GBP
View
Retailer 5
-
£363 GBP
View
Price last confirmed 52 days ago
B+
Retailer 6
-
£1,100 GBP
View
Most Expensive
B+
Diamond Exchange Canada
1986528358 · Nov 5
£1,662 GBP
CA$3,107 CAD
View
6 more retailers have this diamond
Prices start from £250 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
£250 GBP