CaratHunter
Plans
Round|Lab Grown|IGI

0.31ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG815670528

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815670528

Diamond specifications and retailer prices

From £96 GBP
HK$1,000 HKD
As of October 30, 2026
Save £505 GBP (84%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £601 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.31ct lab-grown round diamond

This 0.31ct lab-grown round sits in the sub-half-carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815670528 or 815670528. Listed at 5 retailers as of October 29, 2026, with prices from £96 to £601, a £505 spread on the same certified stone. MOH London lists it at £601. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.31
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815670528
Dimensions4.32 × 4.36 × 2.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
4.32 mm4.36 mm0.31 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815670528
Side View
Table 56.0%Crown 34.5°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.9%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: £601 GBP|Low: £96 GBP|High: £606 GBP|Avg: £229 GBP|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 6£96 GBP
Retailer 3£127 GBP
Retailer 2£164 GBP
Retailer 5£171 GBP
Retailer 4£172 GBP
MOH London£601 GBP

11 data points across 6 retailers

5 retailers£96 GBP to £601 GBP

A
Cheapest Retailer
-
£96 GBP
HK$1,000 HKD
A
Retailer 2
-
£127 GBP
$170 USD
View
A
Retailer 3
-
£164 GBP
$220 USD
View
A
Retailer 4
-
£172 GBP
$231 USD
View
Most Expensive
B
MOH London
LG815670528 · Oct 29
£601 GBP
View
4 more retailers have this diamond
Prices start from £96 GBPSave up to £505 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 Round
£96 GBP