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Round|Natural|IGI

0.40ct J I1 Round Natural Diamond

GD • J/I1 • IGI 485143847

Shape and cutting style on the report: Round brilliant

Certificate IGI 485143847

Diamond specifications and retailer prices

From $282 NZD
$159 USD
As of October 31, 2026
Save $999 NZD (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,281 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 485143847. Listed at 7 retailers as of October 30, 2026, with prices from $282 to $1,281, a $999 spread on the same certified stone. NZ Jewellers lists it at $1,281. 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
PolishGood
SymmetryGood
FluorescenceFaint
Crown angle37.9°
Pavilion angle40°
OriginNatural
Grading LabIGI
CertificateIGI 485143847
Dimensions4.52 × 4.54 × 2.95 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
4.52 mm4.54 mm0.40 ctJ / I1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceFaint
CertificateIGI 485143847
Side View
Table 55.5%Crown 37.9°Girdle: STK-VTKPavilion 40°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: $617 NZD|Low: $269 NZD|High: $620 NZD|Avg: $415 NZD|+3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 2$272 NZD
Retailer 3$354 NZD
Retailer 4$426 NZD
Retailer 1$617 NZD

18 data points across 4 retailers

7 retailers$282 NZD to $1,281 NZD

B+
Cheapest Retailer
-
$282 NZD
$159 USD
B+
Retailer 2
-
$305 NZD
$172 USD
View
B+
Retailer 3
-
$316 NZD
$178 USD
View
B+
Retailer 4
-
$354 NZD
$199 USD
View
B+
Retailer 5
-
$380 NZD
$214 USD
View
B
Retailer 6
-
$617 NZD
€331 EUR
View
Most Expensive
C
NZ Jewellers
35344e7b-11b5-44c0-a438-3b72c41ea931 · Oct 30
$1,281 NZD
$722 USD
View
6 more retailers have this diamond
Prices start from $282 NZDSave up to $999 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
$282 NZD