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Round|Lab Grown|IGI

0.42ct J IF Round Lab Grown Diamond

VG • J/IF • IGI LGF6D93312

Certificate IGI LGF6D93312

Diamond specifications and retailer prices

From €421 EUR
£370 GBP
As of November 1, 2026
Save €294 EUR (41%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €714 EUR at 18carati · As of October 31, 2026
View at 18carati

About this 0.42ct lab-grown round diamond

This 0.42ct lab-grown round sits in the sub-half-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LGF6D93312 or F6D93312. Listed at 2 retailers as of October 31, 2026, with prices from €421 to €714, a €294 spread on the same certified stone. 18carati lists it at €714. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.42
Carat
J
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LGF6D93312
Dimensions4.71 × 4.74 × 3.02 mm
L/W Ratio1.01
Top View
4.71 mm4.74 mm0.42 ctJ / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LGF6D93312
Side View
Table 54.5%CrownGirdlePavilionCulet: NoneDepth 63.9%

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: Nov 1
Current: €714 EUR|Low: €406 EUR|High: €714 EUR|Avg: €562 EUR|+4.1%
18carati
Retailer 2
November 1, 2026
Retailer 2€421 EUR
18carati€714 EUR

31 data points across 2 retailers

2 retailers€421 EUR to €714 EUR

B
Cheapest Retailer
-
€421 EUR
£370 GBP
Most Expensive
C
18carati
NK-3312JIF-0042 · Oct 31
€714 EUR
View
1 more retailer has this diamond
Prices start from €421 EURSave up to €294 EUR

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
0.42ct Round
€421 EUR