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Princess|Lab Grown|GCAL

1.57ct G SI1 Princess Lab Grown Diamond

EX • G/SI1

Diamond specifications and retailer prices

From £172 GBP
As of November 5, 2026
Save £863 GBP (83%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,034 GBP at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

About this 1.57ct lab-grown princess diamond

This 1.57ct 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 5 retailers as of November 5, 2026, with prices from £172 to £1,034, a £863 spread on the same certified stone. Diamond Exchange Canada lists it at £1,034. 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

1.57
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGCAL
Dimensions6.32 × 6.18 × 4.35 mm
L/W Ratio1.02
Top View
6.32 mm6.18 mm1.57 ctG / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGCAL
Side View
Table 68.0%CrownGirdle: ThickPavilionCuletDepth 70.5%

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: £1,034 GBP|Low: £137 GBP|High: £1,034 GBP|Avg: £385 GBP
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
October 20, 2026
Retailer 3£137 GBP
Retailer 4£168 GBP
Retailer 2£172 GBP
Diamond Exchange Canada£1,034 GBP

6 data points across 4 retailers

5 retailers£172 GBP to £1,034 GBP

Retailer 1
-
£137 GBP
Price last confirmed 45 days ago
Retailer 2
-
£159 GBP
View
Price last confirmed 44 days ago
Retailer 3
-
£168 GBP
View
Price last confirmed 44 days ago
B+
Retailer 4
-
£172 GBP
View
Most Expensive
C
Diamond Exchange Canada
1986531620 · Nov 5
£1,034 GBP
CA$1,933 CAD
View
4 more retailers have this diamond
Prices start from £172 GBPSave up to £863 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+
1.57ct Princess
£172 GBP