CaratHunter
Plans
Princess|Lab Grown|IGI

0.82ct F SI1 Princess Lab Grown Diamond

ID • F/SI1 • IGI LG12550015

Shape and cutting style on the report: Square modified brilliant

Certificate IGI LG12550015

Diamond specifications and retailer prices

From £250 GBP
$335 USD
As of November 1, 2026
Save £449 GBP (64%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £700 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.82ct lab-grown princess diamond

This 0.82ct lab-grown princess sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12550015 or 12550015. Listed at 2 retailers as of November 1, 2026, with prices from £250 to £700, a £449 spread on the same certified stone. MOH London lists it at £700. 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

0.82
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle50.2°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12550015
Dimensions5.04 × 5.02 × 3.60 mm
L/W Ratio1.00
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by High Pressure High Tempertature (HPHT) growth process.
Top View
5.04 mm5.02 mm0.82 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG12550015
Side View
Table 73.5%Crown 50.2°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 71.7%

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: £700 GBP|Low: £149 GBP|High: £708 GBP|Avg: £403 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 4£149 GBP
Retailer 2£250 GBP
Retailer 3£513 GBP
MOH London£700 GBP

8 data points across 4 retailers

2 retailers£250 GBP to £700 GBP

B+
Cheapest Retailer
-
£250 GBP
$335 USD
Most Expensive
B
MOH London
LG12550015 · Nov 1
£700 GBP
View
1 more retailer has this diamond
Prices start from £250 GBPSave up to £449 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+
0.82ct Princess
£250 GBP