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Round|Natural|IGI

0.40ct J I1 Round Natural Diamond

EX • J/I1 • IGI 510177065

Shape and cutting style on the report: Round brilliant

Certificate IGI 510177065

Diamond specifications and retailer prices

From $215 USD
As of October 28, 2026
Save $761 USD (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $976 USD 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 J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI 510177065. Listed at 7 retailers as of October 28, 2026, with prices from $215 to $976, a $761 spread on the same certified stone. NZ Jewellers lists it at $976. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.40
Carat
J
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.3°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 510177065
Dimensions4.61 × 4.66 × 2.94 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
4.61 mm4.66 mm0.40 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 510177065
Side View
Table 58.0%Crown 36.3°Girdle: THN-MEDPavilion 41.1°Culet: NoneDepth 63.3%

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: Oct 28
Current: $376 USD|Low: $216 USD|High: $376 USD|Avg: $299 USD|+4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 2$219 USD
Retailer 3$285 USD
Retailer 4$325 USD
Retailer 1$376 USD

20 data points across 4 retailers

7 retailers$215 USD to $976 USD

B+
Cheapest Retailer
-
$215 USD
B+
Retailer 2
-
$232 USD
View
B+
Retailer 3
-
$240 USD
View
B+
Retailer 4
-
$285 USD
View
B+
Retailer 5
-
$290 USD
View
B+
Retailer 6
-
$376 USD
€358 EUR
View
Most Expensive
C
NZ Jewellers
e6c7950f-36fd-4622-b926-cc5a4e9f2f4e · Oct 30
$976 USD
View
6 more retailers have this diamond
Prices start from $215 USDSave up to $761 USD

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
$215 USD