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Round|Lab Grown|IGI

0.33ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG459193274

Shape and cutting style on the report: Round brilliant

Certificate IGI LG459193274

Diamond specifications and retailer prices

From £125 GBP
$168 USD
As of October 29, 2026
Save £601 GBP (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £726 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.33ct lab-grown round diamond

This 0.33ct lab-grown round sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG459193274 or 459193274. Listed at 11 retailers as of October 26, 2026, with prices from £125 to £726, a £601 spread on the same certified stone. MOH London lists it at £726. 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

0.33
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459193274
Dimensions4.38 × 4.32 × 2.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Blue Nuance 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
4.38 mm4.32 mm0.33 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG459193274
Side View
Table 57.5%Crown 35.8°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.3%

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 29
Current: £726 GBP|Low: £120 GBP|High: £734 GBP|Avg: £267 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 5£125 GBP
Retailer 8£145 GBP
Retailer 6£155 GBP
Retailer 3£164 GBP
Retailer 9£222 GBP
Retailer 2£275 GBP
Retailer 7£278 GBP
Retailer 4£319 GBP
MOH London£726 GBP

44 data points across 9 retailers

11 retailers£125 GBP to £726 GBP

A
Cheapest Retailer
-
£125 GBP
$168 USD
A
Retailer 2
-
£145 GBP
$194 USD
View
A
Retailer 3
-
£155 GBP
$208 USD
View
A
Retailer 4
-
£155 GBP
$208 USD
View
A
Retailer 5
-
£164 GBP
$220 USD
View
B+
Retailer 6
-
£275 GBP
View
B+
Retailer 7
-
£278 GBP
$373 USD
View
B
Retailer 8
-
£319 GBP
€407 EUR
View
B
Retailer 9
-
£365 GBP
View
B
Retailer 10
-
£499 GBP
$668 USD
View
Most Expensive
B
MOH London
LG459193274 · Oct 26
£726 GBP
View
10 more retailers have this diamond
Prices start from £125 GBPSave up to £601 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
0.33ct Round
£125 GBP