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Round|Natural|IGI

0.40ct I I1 Round Natural Diamond

GD • I/I1 • IGI 510176274

Shape and cutting style on the report: Round brilliant

Certificate IGI 510176274

Diamond specifications and retailer prices

From €181 EUR
$202 USD
As of October 31, 2026
Save €640 EUR (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €821 EUR at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and I1 clarity (included), with a standard cut grade and certified by IGI 510176274. Listed at 7 retailers as of October 30, 2026, with prices from €181 to €821, a €640 spread on the same certified stone. NZ Jewellers lists it at €821. 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
I
Color
I1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.9°
Pavilion angle39.7°
OriginNatural
Grading LabIGI
CertificateIGI 510176274
Dimensions4.50 × 4.53 × 2.94 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
4.50 mm4.53 mm0.40 ctI / I1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 510176274
Side View
Table 58.0%Crown 38.9°Girdle: UNDPavilion 39.7°Culet: NoneDepth 65.0%

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: Oct 31
Current: €318 EUR|Low: €181 EUR|High: €320 EUR|Avg: €252 EUR|+3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 2€183 EUR
Retailer 3€238 EUR
Retailer 4€273 EUR
Retailer 1€318 EUR

21 data points across 4 retailers

7 retailers€181 EUR to €821 EUR

B+
Cheapest Retailer
-
€181 EUR
$202 USD
B+
Retailer 2
-
€195 EUR
$218 USD
View
B+
Retailer 3
-
€202 EUR
$226 USD
View
B+
Retailer 4
-
€238 EUR
$266 USD
View
B+
Retailer 5
-
€244 EUR
$273 USD
View
B+
Retailer 6
-
€318 EUR
View
Most Expensive
C
NZ Jewellers
963f7b3d-f270-43c2-9841-f3a6c8acd3cb · Oct 30
€821 EUR
$917 USD
View
6 more retailers have this diamond
Prices start from €181 EURSave up to €640 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+
0.40ct Round
€181 EUR