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Princess|Lab Grown|GCAL

1.59ct G SI1 Princess Lab Grown Diamond

VG • G/SI1 • GCAL 320280288

Shape and cutting style on the report: Princess

Certificate GCAL 320280288

Diamond specifications and retailer prices

From £278 GBP
$372 USD
As of November 1, 2026
Save £548 GBP (66%) vs most expensive(unlock to see where)
8 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 very-good cut grade and certified by GCAL 320280288. Listed at 8 retailers as of November 1, 2026, with prices from £278 to £826, a £548 spread on the same certified stone. MOH London lists it at £826. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.59
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle44.5°
Pavilion angle37.6°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 320280288
Dimensions6.24 × 6.24 × 4.53 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.24 mm6.24 mm1.59 ctG / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGCAL 320280288
Side View
Table 67.0%Crown 44.5°Girdle: THK-THKPavilion 37.6°Culet: NoneDepth 72.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £826 GBP|Low: £233 GBP|High: £900 GBP|Avg: £516 GBP|-8.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 7£278 GBP
Retailer 5£304 GBP
Retailer 2£337 GBP
Retailer 3£500 GBP
Retailer 4£582 GBP
Retailer 6£687 GBP
Retailer 8£790 GBP
MOH London£826 GBP

43 data points across 8 retailers

8 retailers£278 GBP to £826 GBP

B+
Cheapest Retailer
-
£278 GBP
$372 USD
B+
Retailer 2
-
£304 GBP
$407 USD
View
B+
Retailer 3
-
£337 GBP
View
B
Retailer 4
-
£500 GBP
View
B
Retailer 5
-
£582 GBP
CA$1,082 CAD
View
B
Retailer 6
-
£687 GBP
$920 USD
View
B
Retailer 7
-
£790 GBP
$1,059 USD
View
Most Expensive
B
MOH London
320280288 · Nov 1
£826 GBP
View
7 more retailers have this diamond
Prices start from £278 GBPSave up to £548 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+
1.59ct Princess
£278 GBP