CaratHunter
Plans
Radiant|Lab Grown|IGI

0.40ct G VS1 Radiant Lab Grown Diamond

VG • G/VS1 • IGI LG530296174

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG530296174

Diamond specifications and retailer prices

From £78 GBP
$104 USD
As of October 30, 2026
Save £724 GBP (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £802 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 0.4ct lab-grown radiant diamond

This 0.4ct lab-grown radiant sits in the sub-half-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG530296174 or 530296174. Listed at 15 retailers as of October 25, 2026, with prices from £78 to £802, a £724 spread on the same certified stone. MOH London lists it at £802. 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

0.40
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle45.9°
Pavilion angle30.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG530296174
Dimensions5.06 × 3.52 × 2.46 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
5.06 mm3.52 mm0.40 ctG / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG530296174
Side View
Table 71.5%Crown 45.9°Girdle: MediumPavilion 30.3°Culet: NoneDepth 69.9%

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: £802 GBP|Low: £74 GBP|High: £810 GBP|Avg: £260 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 9£78 GBP
Retailer 13£90 GBP
Retailer 3£102 GBP
Retailer 10£102 GBP
Retailer 2£157 GBP
Retailer 8£173 GBP
Retailer 6£188 GBP
Retailer 12£193 GBP
Retailer 7£246 GBP
Retailer 4£265 GBP
Retailer 11£308 GBP
Retailer 5£500 GBP
MOH London£802 GBP

45 data points across 13 retailers

15 retailers£78 GBP to £802 GBP

A
Cheapest Retailer
-
£78 GBP
$104 USD
A
Retailer 2
-
£90 GBP
$120 USD
View
B+
Retailer 3
-
£102 GBP
$137 USD
View
B+
Retailer 4
-
£102 GBP
$137 USD
View
B+
Retailer 5
-
£157 GBP
$210 USD
View
B+
Retailer 6
-
£173 GBP
ZAR 3,749 ZAR
View
B+
Retailer 7
-
£188 GBP
View
B+
Retailer 8
-
£193 GBP
$259 USD
View
B+
Retailer 9
-
£246 GBP
View
B
Retailer 10
-
£265 GBP
$355 USD
View
B
Retailer 11
-
£296 GBP
HK$3,100 HKD
View
B
Retailer 12
-
£308 GBP
$413 USD
View
B
Retailer 13
-
£352 GBP
$471 USD
View
B
Retailer 14
-
£500 GBP
View
Most Expensive
B
MOH London
LG530296174 · Oct 25
£802 GBP
View
14 more retailers have this diamond
Prices start from £78 GBPSave up to £724 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
0.40ct Radiant
£78 GBP