Princess|Lab Grown|IGI

0.30ct D SI1 Princess Lab Grown Diamond

ID • D/SI1 • IGI LG680538456

Shape and cutting style on the report: Princess cut

Certificate IGI LG680538456

Diamond specifications and retailer prices

From £89 GBP
$118 USD
As of October 30, 2026
Save £308 GBP (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £920 GBP at MOH London · As of October 25, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG680538456 or 680538456. Listed at 14 retailers as of October 29, 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle41.9°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG680538456
Dimensions3.72 × 3.64 × 2.58 mm
L/W Ratio1.02
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
3.72 mm3.64 mm0.30 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG680538456
Side View
Table 69.0%Crown 41.9°Girdle: MediumPavilion 38.4°Culet: NoneDepth 70.9%

Caratlytics Score

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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 30
Current: £920 GBP|Low: £85 GBP|High: £930 GBP|Avg: £258 GBP|+0.2%
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 30, 2026
Retailer 8£89 GBP
Retailer 4£103 GBP
Retailer 10£117 GBP
Retailer 12£117 GBP
Retailer 9£156 GBP
Retailer 2£173 GBP
Retailer 6£198 GBP
Retailer 5£225 GBP
Retailer 7£283 GBP
Retailer 3£332 GBP
Retailer 11£354 GBP
MOH London£920 GBP

44 data points across 12 retailers

14 retailers£89 GBP to £397 GBP

A
Cheapest Retailer
-
£89 GBP
$118 USD
A
Retailer 2
-
£103 GBP
$137 USD
View
A
Retailer 3
-
£117 GBP
$156 USD
View
A
Retailer 4
-
£117 GBP
$156 USD
View
B+
Retailer 5
-
£156 GBP
$208 USD
View
B+
Retailer 6
-
£173 GBP
$230 USD
View
B+
Retailer 7
-
£198 GBP
€251 EUR
View
B
Retailer 8
-
£225 GBP
View
B
Retailer 9
-
£283 GBP
View
B
Retailer 10
-
£309 GBP
SGD 556 SGD
View
B
Retailer 11
-
£332 GBP
$442 USD
View
B
Retailer 12
-
£354 GBP
$471 USD
View
B
Retailer 13
-
£397 GBP
$528 USD
View
Most Expensive
MOH London
LG680538456 · Oct 25
£920 GBP
View
Price under review
13 more retailers have this diamond
Prices start from £89 GBPSave up to £308 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
£89 GBP