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Princess|Lab Grown|GCAL

1.59ct G SI1 Princess Lab Grown Diamond

EX • G/SI1 • GCAL 331140122

Shape and cutting style on the report: Princess

Certificate GCAL 331140122

Diamond specifications and retailer prices

From £169 GBP
$226 USD
As of October 30, 2026
Save £657 GBP (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £826 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.59ct lab-grown princess diamond

This 1.59ct 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 331140122. Listed at 12 retailers as of October 30, 2026, with prices from £169 to £826, a £657 spread on the same certified stone. MOH London lists it at £826. 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

1.59
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle40.2°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 331140122
Dimensions6.59 × 6.57 × 4.62 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.59 mm6.57 mm1.59 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGCAL 331140122
Side View
Table 71.0%Crown 34°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 70.4%

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: £826 GBP|Low: £156 GBP|High: £900 GBP|Avg: £485 GBP|-8.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7£169 GBP
Retailer 8£278 GBP
Retailer 5£304 GBP
Retailer 2£337 GBP
Retailer 3£500 GBP
Retailer 4£582 GBP
Retailer 6£687 GBP
Retailer 9£790 GBP
MOH London£826 GBP

43 data points across 9 retailers

12 retailers£169 GBP to £826 GBP

Retailer 1
-
£134 GBP
$179 USD
Price last confirmed 30 days ago
A
Retailer 2
-
£169 GBP
$226 USD
View
Final sale: no returns
Retailer 3
-
£172 GBP
$231 USD
View
Price last confirmed 29 days ago
B+
Retailer 4
-
£278 GBP
$372 USD
View
A
Retailer 5
-
£304 GBP
$407 USD
View
B+
Retailer 6
-
£337 GBP
View
B+
Retailer 7
-
£500 GBP
View
B
Retailer 8
-
£582 GBP
CA$1,082 CAD
View
Retailer 9
-
£612 GBP
$820 USD
View
Price last confirmed 32 days ago
B
Retailer 10
-
£687 GBP
$920 USD
View
B
Retailer 11
-
£790 GBP
$1,059 USD
View
Most Expensive
B
MOH London
331140122 · Nov 1
£826 GBP
View
11 more retailers have this diamond
Prices start from £169 GBPSave up to £657 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
1.59ct Princess
£169 GBP