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0.30ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • IGI LG462172798

Shape and cutting style on the report: Round brilliant

Certificate IGI LG462172798

Diamond specifications and retailer prices

From £123 GBP
$164 USD
As of October 29, 2026
Save £594 GBP (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £717 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG462172798 or 462172798. Listed at 10 retailers as of October 29, 2026, with prices from £123 to £717, a £594 spread on the same certified stone. MOH London lists it at £717. 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

0.30
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG462172798
Dimensions4.34 × 4.33 × 2.59 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
Top View
4.34 mm4.33 mm0.30 ctD / SI2
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG462172798
Side View
Table 62.0%Crown 35.4°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 59.8%

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: £717 GBP|Low: £118 GBP|High: £722 GBP|Avg: £288 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 4£123 GBP
Retailer 8£143 GBP
Retailer 6£152 GBP
Retailer 5£158 GBP
Retailer 10£194 GBP
Retailer 7£275 GBP
Retailer 2£316 GBP
Retailer 3£320 GBP
Retailer 11£357 GBP
Retailer 9£357 GBP
MOH London£717 GBP

17 data points across 11 retailers

10 retailers£123 GBP to £717 GBP

A
Cheapest Retailer
-
£123 GBP
$164 USD
B+
Retailer 2
-
£143 GBP
$190 USD
View
B+
Retailer 3
-
£152 GBP
$203 USD
View
B+
Retailer 4
-
£152 GBP
$203 USD
View
B+
Retailer 5
-
£158 GBP
$210 USD
View
B
Retailer 6
-
£275 GBP
$366 USD
View
B
Retailer 7
-
£316 GBP
€401 EUR
View
B
Retailer 8
-
£357 GBP
View
B
Retailer 9
-
£490 GBP
$653 USD
View
Most Expensive
B
MOH London
LG462172798 · Oct 29
£717 GBP
View
9 more retailers have this diamond
Prices start from £123 GBPSave up to £594 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
0.30ct Round
£123 GBP