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Round|Lab Grown|IGI

0.43ct I IF Round Lab Grown Diamond

EX • I/IF • IGI LGF5D38873

Certificate IGI LGF5D38873

Diamond specifications and retailer prices

From £408 GBP
As of October 30, 2026
Save £297 GBP (42%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £705 GBP at 18carati · As of October 28, 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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LGF5D38873 or F5D38873. Listed at 2 retailers as of October 28, 2026, with prices from £408 to £705, a £297 spread on the same certified stone. 18carati lists it at £705. 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
I
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginLab Grown
Grading LabIGI
CertificateIGI LGF5D38873
Dimensions4.84 × 4.89 × 3.00 mm
L/W Ratio1.01
Top View
4.84 mm4.89 mm0.43 ctI / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI LGF5D38873
Side View
Table 57.0%CrownGirdlePavilionCulet: NoneDepth 61.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £705 GBP|Low: £383 GBP|High: £705 GBP|Avg: £547 GBP|+3.4%
18carati
Retailer 2
October 30, 2026
Retailer 2£408 GBP
18carati£705 GBP

30 data points across 2 retailers

2 retailers£408 GBP to £705 GBP

B
Cheapest Retailer
-
£408 GBP
Most Expensive
C
18carati
NK-8873IIF-0043 · Oct 28
£705 GBP
€900 EUR
View
1 more retailer has this diamond
Prices start from £408 GBPSave up to £297 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
£408 GBP