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Princess|Lab Grown|GCAL

1.56ct G SI1 Princess Lab Grown Diamond

EX • G/SI1

Diamond specifications and retailer prices

From £171 GBP
As of November 5, 2026
Save £857 GBP (83%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,028 GBP at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

About this 1.56ct lab-grown princess diamond

This 1.56ct lab-grown princess sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL. Listed at 6 retailers as of November 5, 2026, with prices from £171 to £1,028, a £857 spread on the same certified stone. Diamond Exchange Canada lists it at £1,028. 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

1.56
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGCAL
Dimensions6.36 × 6.24 × 4.55 mm
L/W Ratio1.02
Top View
6.36 mm6.24 mm1.56 ctG / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGCAL
Side View
Table 66.0%CrownGirdle: Very ThickPavilionCuletDepth 73.0%

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: £1,028 GBP|Low: £136 GBP|High: £1,028 GBP|Avg: £362 GBP
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 20, 2026
Retailer 4£136 GBP
Retailer 5£166 GBP
Retailer 2£171 GBP
Retailer 3£183 GBP
Diamond Exchange Canada£1,028 GBP

8 data points across 5 retailers

6 retailers£171 GBP to £1,028 GBP

Retailer 1
-
£136 GBP
Price last confirmed 45 days ago
Retailer 2
-
£158 GBP
View
Price last confirmed 44 days ago
Retailer 3
-
£166 GBP
View
Price last confirmed 44 days ago
B+
Retailer 4
-
£171 GBP
View
Retailer 5
-
£183 GBP
View
Price last confirmed 12 days ago
Most Expensive
C
Diamond Exchange Canada
1986531687 · Nov 5
£1,028 GBP
CA$1,921 CAD
View
5 more retailers have this diamond
Prices start from £171 GBPSave up to £857 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+
1.56ct Princess
£171 GBP