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Round|Natural|IGI

0.40ct J I1 Round Natural Diamond

GD • J/I1 • IGI 485143827

Shape and cutting style on the report: Round brilliant

Certificate IGI 485143827

Diamond specifications and retailer prices

From $358 NZD
$202 USD
As of October 31, 2026
Save $1,269 NZD (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,627 NZD 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 standard cut grade and certified by IGI 485143827. Listed at 7 retailers as of October 30, 2026, with prices from $358 to $1,627, a $1,269 spread on the same certified stone. NZ Jewellers lists it at $1,627. 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
J
Colour
I1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40°
OriginNatural
Grading LabIGI
CertificateIGI 485143827
Dimensions4.51 × 4.59 × 2.96 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
4.51 mm4.59 mm0.40 ctJ / I1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 485143827
Side View
Table 56.0%Crown 38°Girdle: MED-VTKPavilion 40°Culet: NoneDepth 64.8%

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: $630 NZD|Low: $359 NZD|High: $633 NZD|Avg: $499 NZD|+3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 2$362 NZD
Retailer 3$471 NZD
Retailer 4$542 NZD
Retailer 1$630 NZD

20 data points across 4 retailers

7 retailers$358 NZD to $1,627 NZD

B+
Cheapest Retailer
-
$358 NZD
$202 USD
B+
Retailer 2
-
$387 NZD
$218 USD
View
B+
Retailer 3
-
$401 NZD
$226 USD
View
B+
Retailer 4
-
$471 NZD
$266 USD
View
B+
Retailer 5
-
$484 NZD
$273 USD
View
B
Retailer 6
-
$630 NZD
€338 EUR
View
Most Expensive
C
NZ Jewellers
d84abadb-f266-43ba-a195-42c07159886c · Oct 30
$1,627 NZD
$917 USD
View
6 more retailers have this diamond
Prices start from $358 NZDSave up to $1,269 NZD

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
$358 NZD