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Princess|Lab Grown|IGI

1.61ct F SI1 Princess Lab Grown Diamond

VG • F/SI1 • IGI LG594313028

Shape and cutting style on the report: Princess cut

Certificate IGI LG594313028

Diamond specifications and retailer prices

From £300 GBP
$403 USD
As of November 1, 2026
Save £550 GBP (65%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £851 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.61ct lab-grown princess diamond

This 1.61ct lab-grown princess sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG594313028 or 594313028. Listed at 5 retailers as of November 1, 2026, with prices from £300 to £851, a £550 spread on the same certified stone. MOH London lists it at £851. 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

1.61
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle45.7°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594313028
Dimensions6.49 × 6.36 × 4.46 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.
Top View
6.49 mm6.36 mm1.61 ctF / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG594313028
Side View
Table 70.0%Crown 45.7°Girdle: ThickPavilion 37.5°Culet: NoneDepth 70.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £851 GBP|Low: £300 GBP|High: £861 GBP|Avg: £450 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5£300 GBP
Retailer 3£332 GBP
Retailer 4£386 GBP
Retailer 2£397 GBP
MOH London£851 GBP

40 data points across 5 retailers

5 retailers£300 GBP to £851 GBP

A
Cheapest Retailer
-
£300 GBP
$403 USD
B+
Retailer 2
-
£332 GBP
$446 USD
View
B+
Retailer 3
-
£386 GBP
$518 USD
View
B+
Retailer 4
-
£397 GBP
View
Most Expensive
B
MOH London
LG594313028 · Nov 2
£851 GBP
View
4 more retailers have this diamond
Prices start from £300 GBPSave up to £550 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
1.61ct Princess
£300 GBP