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Round|Lab Grown|IGI

0.43ct G SI1 Round Lab Grown Diamond

VG • G/SI1 • IGI LG459192938

Shape and cutting style on the report: Round brilliant

Certificate IGI LG459192938

Diamond specifications and retailer prices

From £176 GBP
$236 USD
As of October 29, 2026
Save £703 GBP (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £880 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.43ct lab-grown round diamond

This 0.43ct lab-grown round sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG459192938 or 459192938. Listed at 10 retailers as of October 29, 2026, with prices from £176 to £880, a £703 spread on the same certified stone. MOH London lists it at £880. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.43
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459192938
Dimensions4.71 × 4.75 × 2.98 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
4.71 mm4.75 mm0.43 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG459192938
Side View
Table 59.0%Crown 36.1°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 62.9%

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 29
Current: £880 GBP|Low: £169 GBP|High: £885 GBP|Avg: £354 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 5£176 GBP
Retailer 3£194 GBP
Retailer 8£204 GBP
Retailer 6£218 GBP
Retailer 9£313 GBP
Retailer 7£369 GBP
Retailer 2£411 GBP
Retailer 4£418 GBP
MOH London£880 GBP

42 data points across 9 retailers

10 retailers£176 GBP to £880 GBP

A
Cheapest Retailer
-
£176 GBP
$236 USD
A
Retailer 2
-
£194 GBP
$260 USD
View
B+
Retailer 3
-
£204 GBP
$274 USD
View
B+
Retailer 4
-
£218 GBP
$292 USD
View
B+
Retailer 5
-
£218 GBP
$292 USD
View
B
Retailer 6
-
£369 GBP
$495 USD
View
B
Retailer 7
-
£411 GBP
View
B
Retailer 8
-
£418 GBP
€534 EUR
View
B
Retailer 9
-
£702 GBP
$940 USD
View
Most Expensive
B
MOH London
LG459192938 · Oct 29
£880 GBP
View
9 more retailers have this diamond
Prices start from £176 GBPSave up to £703 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
0.43ct Round
£176 GBP