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Round|Lab Grown|IGI

0.43ct J IF Round Lab Grown Diamond

EX • J/IF • IGI LGF5F69854

Certificate IGI LGF5F69854

Diamond specifications and retailer prices

From £362 GBP
As of November 1, 2026
Save £242 GBP (40%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £603 GBP at 18carati · As of October 31, 2026
View at 18carati

About this 0.43ct lab-grown round diamond

This 0.43ct lab-grown round sits in the sub-half-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LGF5F69854 or F5F69854. Listed at 2 retailers as of October 31, 2026, with prices from £362 to £603, a £242 spread on the same certified stone. 18carati lists it at £603. 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

0.43
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LGF5F69854
Dimensions4.83 × 4.87 × 2.99 mm
L/W Ratio1.01
Top View
4.83 mm4.87 mm0.43 ctJ / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LGF5F69854
Side View
Table 59.5%CrownGirdlePavilionCulet: NoneDepth 61.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: £603 GBP|Low: £346 GBP|High: £603 GBP|Avg: £477 GBP|+2.7%
18carati
Retailer 2
November 1, 2026
Retailer 2£362 GBP
18carati£603 GBP

32 data points across 2 retailers

2 retailers£362 GBP to £603 GBP

B+
Cheapest Retailer
-
£362 GBP
Most Expensive
B
18carati
NK-9854JIF-0043 · Oct 31
£603 GBP
€770 EUR
View
1 more retailer has this diamond
Prices start from £362 GBPSave up to £242 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.

B+
0.43ct Round
£362 GBP