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Round|Lab Grown|IGI

0.37ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG462172761

Shape and cutting style on the report: Round brilliant

Certificate IGI LG462172761

Diamond specifications and retailer prices

From £137 GBP
$184 USD
As of October 29, 2026
Save £665 GBP (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £803 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.37ct lab-grown round diamond

This 0.37ct 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 LG462172761 or 462172761. Listed at 10 retailers as of October 29, 2026, with prices from £137 to £803, a £665 spread on the same certified stone. MOH London lists it at £803. 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

0.37
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG462172761
Dimensions4.62 × 4.58 × 2.84 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
4.62 mm4.58 mm0.37 ctG / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG462172761
Side View
Table 55.0%Crown 34.3°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 61.6%

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: £803 GBP|Low: £132 GBP|High: £808 GBP|Avg: £293 GBP|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5£137 GBP
Retailer 8£160 GBP
Retailer 6£171 GBP
Retailer 2£179 GBP
Retailer 9£245 GBP
Retailer 7£302 GBP
Retailer 3£308 GBP
Retailer 4£344 GBP
MOH London£803 GBP

41 data points across 9 retailers

10 retailers£137 GBP to £803 GBP

A
Cheapest Retailer
-
£137 GBP
$184 USD
A
Retailer 2
-
£160 GBP
$214 USD
View
A
Retailer 3
-
£171 GBP
$229 USD
View
A
Retailer 4
-
£171 GBP
$229 USD
View
A
Retailer 5
-
£179 GBP
$240 USD
View
B+
Retailer 6
-
£302 GBP
$404 USD
View
B+
Retailer 7
-
£308 GBP
View
B
Retailer 8
-
£344 GBP
€439 EUR
View
B
Retailer 9
-
£549 GBP
$735 USD
View
Most Expensive
B
MOH London
LG462172761 · Oct 29
£803 GBP
View
9 more retailers have this diamond
Prices start from £137 GBPSave up to £665 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
0.37ct Round
£137 GBP