Princess|Lab Grown|IGI

0.31ct D SI1 Princess Lab Grown Diamond

ID • D/SI1 • IGI LG841679699

Shape and cutting style on the report: Princess cut

Certificate IGI LG841679699

Diamond specifications and retailer prices

From £90 GBP
$120 USD
As of October 30, 2026
Save £390 GBP (81%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £480 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.31ct lab-grown princess diamond

This 0.31ct 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 LG841679699 or 841679699. Listed at 6 retailers as of October 29, 2026, with prices from £90 to £480, a £390 spread on the same certified stone. MOH London lists it at £480. 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

0.31
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle41.9°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841679699
Dimensions3.73 × 3.68 × 2.64 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
3.73 mm3.68 mm0.31 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG841679699
Side View
Table 76.0%Crown 41.9°Girdle: Slightly ThickPavilion 39.6°CuletDepth 71.7%

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 30
Current: £480 GBP|Low: £90 GBP|High: £480 GBP|Avg: £210 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 6£90 GBP
Retailer 2£117 GBP
Retailer 3£142 GBP
Retailer 4£167 GBP
Retailer 5£254 GBP
MOH London£480 GBP

18 data points across 6 retailers

6 retailers£90 GBP to £480 GBP

A
Cheapest Retailer
-
£90 GBP
$120 USD
B+
Retailer 2
-
£117 GBP
View
B+
Retailer 3
-
£142 GBP
$190 USD
View
B+
Retailer 4
-
£167 GBP
View
B
Retailer 5
-
£254 GBP
$341 USD
View
Most Expensive
B
MOH London
LG841679699 · Oct 29
£480 GBP
View
5 more retailers have this diamond
Prices start from £90 GBPSave up to £390 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
0.31ct Princess
£90 GBP