Princess|Lab Grown|IGI

0.30ct E SI1 Princess Lab Grown Diamond

ID • E/SI1 • IGI LG669404353

Shape and cutting style on the report: Princess cut

Certificate IGI LG669404353

Diamond specifications and retailer prices

From £86 GBP
$114 USD
As of October 27, 2026
Save £298 GBP (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £885 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.3ct lab-grown princess diamond

This 0.3ct lab-grown princess sits in the sub-half-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG669404353 or 669404353. Listed at 14 retailers as of October 27, 2026, with a 348% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.30
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669404353
Dimensions3.66 × 3.57 × 2.58 mm
L/W Ratio1.03
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
3.66 mm3.57 mm0.30 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669404353
Side View
Table 72.0%Crown 43.9°Girdle: Slightly ThickPavilion 38.5°Culet: NoneDepth 72.3%

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: Oct 27
Current: £885 GBP|Low: £82 GBP|High: £895 GBP|Avg: £249 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 7£86 GBP
Retailer 3£99 GBP
Retailer 9£113 GBP
Retailer 11£113 GBP
Retailer 8£150 GBP
Retailer 4£180 GBP
Retailer 5£192 GBP
Retailer 2£214 GBP
Retailer 6£272 GBP
Retailer 12£328 GBP
Retailer 10£340 GBP
MOH London£885 GBP

43 data points across 12 retailers

14 retailers£86 GBP to £383 GBP

A
Cheapest Retailer
-
£86 GBP
$114 USD
A
Retailer 2
-
£99 GBP
$132 USD
View
A
Retailer 3
-
£113 GBP
$150 USD
View
A
Retailer 4
-
£113 GBP
$150 USD
View
B+
Retailer 5
-
£150 GBP
$200 USD
View
B+
Retailer 6
-
£180 GBP
$240 USD
View
B+
Retailer 7
-
£192 GBP
€244 EUR
View
B+
Retailer 8
-
£214 GBP
View
B
Retailer 9
-
£272 GBP
View
B
Retailer 10
-
£298 GBP
SGD 537 SGD
View
B
Retailer 11
-
£328 GBP
$437 USD
View
B
Retailer 12
-
£340 GBP
$453 USD
View
B
Retailer 13
-
£383 GBP
$511 USD
View
Most Expensive
B
MOH London
LG669404353 · Oct 26
£885 GBP
View
Price under review
13 more retailers have this diamond
Prices start from £86 GBPSave up to £298 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
0.30ct Princess
£86 GBP