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Round|Lab Grown|IGI

0.30ct G VVS1 Round Lab Grown Diamond

EX • G/VVS1 • IGI LG818621818

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818621818

Diamond specifications and retailer prices

From £128 GBP
As of October 31, 2026
Save £381 GBP (75%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £508 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.3ct lab-grown round diamond

This 0.3ct lab-grown round sits in the sub-half-carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG818621818 or 818621818. Listed at 6 retailers as of October 29, 2026, with prices from £128 to £508, a £381 spread on the same certified stone. MOH London lists it at £508. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.30
Carat
G
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818621818
Dimensions4.30 × 4.28 × 2.64 mm
L/W Ratio1.00
Girdle conditionFaceted
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 Faint Blue
Top View
4.30 mm4.28 mm0.30 ctG / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818621818
Side View
Table 60.0%Crown 33.8°Girdle: MediumPavilion 41.2°CuletDepth 61.5%

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: Oct 31
Current: £508 GBP|Low: £111 GBP|High: £526 GBP|Avg: £248 GBP|-2.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 3£128 GBP
Retailer 2£138 GBP
Retailer 5£154 GBP
Retailer 6£266 GBP
Retailer 4£293 GBP
MOH London£508 GBP

42 data points across 6 retailers

6 retailers£128 GBP to £508 GBP

B+
Cheapest Retailer
-
£128 GBP
B+
Retailer 2
-
£138 GBP
€176 EUR
View
B+
Retailer 3
-
£154 GBP
$206 USD
View
B
Retailer 4
-
£266 GBP
$356 USD
View
B
Retailer 5
-
£293 GBP
$393 USD
View
Most Expensive
B
MOH London
LG818621818 · Oct 29
£508 GBP
View
5 more retailers have this diamond
Prices start from £128 GBPSave up to £381 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+
0.30ct Round
£128 GBP