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Round|Lab Grown|GCAL

3.08ct H SI1 Round Lab Grown Diamond

EX • H/SI1

Diamond specifications and retailer prices

From £341 GBP
As of November 5, 2026
Save £1,707 GBP (83%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,048 GBP at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

About this 3.08ct lab-grown round diamond

This 3.08ct lab-grown round sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL. Listed at 2 retailers as of November 5, 2026, with prices from £341 to £2,048, a £1,707 spread on the same certified stone. Diamond Exchange Canada lists it at £2,048. 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

3.08
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGCAL
Dimensions9.37 × 9.41 × 5.71 mm
L/W Ratio1.00
Top View
9.37 mm9.41 mm3.08 ctH / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGCAL
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCuletDepth 60.8%

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: £2,048 GBP|Low: £282 GBP|High: £2,048 GBP|Avg: £794 GBP
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 20, 2026
Retailer 3£282 GBP
Retailer 2£341 GBP
Retailer 5£345 GBP
Retailer 6£447 GBP
Retailer 4£1,239 GBP
Diamond Exchange Canada£2,048 GBP

6 data points across 6 retailers

2 retailers£341 GBP to £2,048 GBP

B+
Cheapest Retailer
-
£341 GBP
Most Expensive
B
Diamond Exchange Canada
1986529930 · Nov 5
£2,048 GBP
CA$3,828 CAD
View
1 more retailer has this diamond
Prices start from £341 GBPSave up to £1,707 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+
3.08ct Round
£341 GBP