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Round|Natural|IGI

0.40ct L SI2 Round Natural Diamond

VG • L/SI2 • IGI 583335549

Shape and cutting style on the report: Round brilliant

Certificate IGI 583335549

Diamond specifications and retailer prices

From £141 GBP
As of November 4, 2026
Save £499 GBP (78%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £640 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.4ct natural round diamond

This 0.4ct natural round sits in the sub-half-carat band, graded L colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 583335549. Listed at 9 retailers as of November 4, 2026, with prices from £141 to £640, a £499 spread on the same certified stone. NZ Jewellers lists it at £640. 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

0.40
Carat
L
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle33.7°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 583335549
Dimensions4.69 × 4.74 × 2.84 mm
L/W Ratio1.01
Culet sizePointed
Top View
4.69 mm4.74 mm0.40 ctL / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 583335549
Side View
Table 62.0%Crown 33.7°Girdle: MED-THKPavilion 40.5°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £640 GBP|Low: £141 GBP|High: £854 GBP|Avg: £292 GBP|-25.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10£141 GBP
Retailer 5£152 GBP
Retailer 6£158 GBP
Retailer 7£183 GBP
Retailer 8£190 GBP
Retailer 11£196 GBP
Retailer 9£238 GBP
Retailer 4£255 GBP
Retailer 2£289 GBP
Retailer 3£338 GBP
NZ Jewellers£640 GBP

42 data points across 11 retailers

9 retailers£141 GBP to £640 GBP

B+
Cheapest Retailer
-
£141 GBP
Retailer 2
-
£152 GBP
View
Price last confirmed 8 days ago
B+
Retailer 3
-
£158 GBP
View
B+
Retailer 4
-
£183 GBP
View
B+
Retailer 5
-
£190 GBP
View
B+
Retailer 6
-
£238 GBP
View
B+
Retailer 7
-
£255 GBP
View
B
Retailer 8
-
£289 GBP
View
Most Expensive
C
NZ Jewellers
d0d0e16e-5d91-4f44-9190-cc31bd7fa26e · Nov 4
£640 GBP
$862 USD
View
8 more retailers have this diamond
Prices start from £141 GBPSave up to £499 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+
0.40ct Round
£141 GBP