Round|Lab Grown|IGI

0.30ct F IF Round Lab Grown Diamond

EX • F/IF • IGI LG677530145

Shape and cutting style on the report: Round brilliant

Certificate IGI LG677530145

Diamond specifications and retailer prices

From £101 GBP
$136 USD
As of November 1, 2026
Save £557 GBP (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,046 GBP at MOH London · As of November 1, 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG677530145 or 677530145. Listed at 15 retailers as of November 1, 2026, with a 550% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.30
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677530145
Dimensions4.38 × 4.40 × 2.63 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
4.38 mm4.40 mm0.30 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677530145
Side View
Table 58.0%Crown 32.7°Girdle: MediumPavilion 41.2°Culet: NoneDepth 60.0%

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: Nov 1
Current: £1,046 GBP|Low: £96 GBP|High: £1,051 GBP|Avg: £292 GBP|+0.8%
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
Retailer 14
Retailer 15
November 2, 2026
Retailer 4£101 GBP
Retailer 15£113 GBP
Retailer 11£117 GBP
Retailer 13£125 GBP
Retailer 14£125 GBP
Retailer 10£201 GBP
Retailer 8£212 GBP
Retailer 9£228 GBP
Retailer 2£229 GBP
Retailer 7£235 GBP
Retailer 12£288 GBP
Retailer 6£402 GBP
Retailer 3£444 GBP
Retailer 5£659 GBP
MOH London£1,046 GBP

42 data points across 15 retailers

15 retailers£101 GBP to £659 GBP

A
Cheapest Retailer
-
£101 GBP
$136 USD
A
Retailer 2
-
£113 GBP
$152 USD
View
Final sale: no returns
A
Retailer 3
-
£117 GBP
$157 USD
View
A
Retailer 4
-
£125 GBP
$168 USD
View
Retailer 5
-
£125 GBP
$168 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£201 GBP
$270 USD
View
B+
Retailer 7
-
£212 GBP
View
B+
Retailer 8
-
£228 GBP
ZAR 4,933 ZAR
View
B+
Retailer 9
-
£229 GBP
€293 EUR
View
B+
Retailer 10
-
£235 GBP
$315 USD
View
B+
Retailer 11
-
£288 GBP
$386 USD
View
B
Retailer 12
-
£402 GBP
$540 USD
View
B
Retailer 13
-
£444 GBP
$596 USD
View
B
Retailer 14
-
£659 GBP
View
Most Expensive
MOH London
LG677530145 · Nov 1
£1,046 GBP
View
Price under review
14 more retailers have this diamond
Prices start from £101 GBPSave up to £557 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
£101 GBP