CaratHunter
Plans
Round|Lab Grown|GCAL

3.07ct G SI1 Round Lab Grown Diamond

EX • G/SI1

Diamond specifications and retailer prices

From £334 GBP
$447 USD
As of October 30, 2026
Save £1,405 GBP (81%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,739 GBP at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

About this 3.07ct lab-grown round diamond

This 3.07ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL. Listed at 2 retailers as of October 30, 2026, with prices from £334 to £1,739, a £1,405 spread on the same certified stone. Diamond Exchange Canada lists it at £1,739. 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

3.07
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGCAL
Dimensions9.32 × 9.35 × 5.77 mm
L/W Ratio1.00
Top View
9.32 mm9.35 mm3.07 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL
Side View
Table 56.0%CrownGirdle: MED-STKPavilionCuletDepth 61.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,739 GBP|Low: £278 GBP|High: £1,739 GBP|Avg: £762 GBP
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 20, 2026
Retailer 3£278 GBP
Retailer 2£334 GBP
Retailer 5£341 GBP
Retailer 6£439 GBP
Retailer 4£1,225 GBP
Diamond Exchange Canada£1,739 GBP

8 data points across 6 retailers

2 retailers£334 GBP to £1,739 GBP

A
Cheapest Retailer
-
£334 GBP
$447 USD
Most Expensive
C
Diamond Exchange Canada
1986530008 · Oct 30
£1,739 GBP
CA$3,235 CAD
View
1 more retailer has this diamond
Prices start from £334 GBPSave up to £1,405 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.

A
3.07ct Round
£334 GBP