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Princess|Lab Grown|IGI

1.89ct F SI1 Princess Lab Grown Diamond

VG • F/SI1 • IGI LG522227321

Shape and cutting style on the report: Princess cut

Certificate IGI LG522227321

Diamond specifications and retailer prices

From £434 GBP
$582 USD
As of November 1, 2026
Save £621 GBP (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,054 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.89ct lab-grown princess diamond

This 1.89ct 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 LG522227321 or 522227321. Listed at 6 retailers as of November 1, 2026, with prices from £434 to £1,054, a £621 spread on the same certified stone. MOH London lists it at £1,054. 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

1.89
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.2°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522227321
Dimensions6.61 × 6.31 × 4.80 mm
L/W Ratio1.05
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.61 mm6.31 mm1.89 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522227321
Side View
Table 67.5%Crown 50.2°Girdle: Slightly ThickPavilion 37.7°Culet: NoneDepth 76.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £1,054 GBP|Low: £415 GBP|High: £1,068 GBP|Avg: £631 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 4£434 GBP
Retailer 2£465 GBP
Retailer 5£525 GBP
Retailer 6£527 GBP
Retailer 3£782 GBP
MOH London£1,054 GBP

41 data points across 6 retailers

6 retailers£434 GBP to £1,054 GBP

A
Cheapest Retailer
-
£434 GBP
$582 USD
B+
Retailer 2
-
£465 GBP
View
B+
Retailer 3
-
£525 GBP
$704 USD
View
B+
Retailer 4
-
£527 GBP
$707 USD
View
B
Retailer 5
-
£782 GBP
$1,050 USD
View
Most Expensive
B
MOH London
LG522227321 · Nov 1
£1,054 GBP
View
5 more retailers have this diamond
Prices start from £434 GBPSave up to £621 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
1.89ct Princess
£434 GBP