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Marquise|Natural|IGI

0.31ct J VS1 Marquise Natural Diamond

VG • J/VS1 • IGI 815640201

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 815640201

Diamond specifications and retailer prices

From $435 NZD
$245 USD
As of October 29, 2026
Save $574 NZD (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,969 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.31ct natural marquise diamond

This 0.31ct natural marquise sits in the sub-half-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 815640201. Listed at 8 retailers as of October 29, 2026, with a 132% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.31
Carat
J
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.7°
Pavilion angle39.7°
OriginNatural
Grading LabIGI
CertificateIGI 815640201
Dimensions6.77 × 3.53 × 2.25 mm
L/W Ratio1.92
Girdle conditionFaceted
Top View
6.77 mm3.53 mm0.31 ctJ / VS1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 815640201
Side View
Table 57.0%Crown 32.7°Girdle: THK-VTKPavilion 39.7°Culet: NoneDepth 63.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,969 NZD|Low: $435 NZD|High: $1,969 NZD|Avg: $827 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6$435 NZD
Retailer 5$485 NZD
Retailer 7$599 NZD
Retailer 8$716 NZD
Retailer 2$771 NZD
Retailer 3$868 NZD
Retailer 4$1,009 NZD
NZ Jewellers$1,969 NZD

22 data points across 8 retailers

8 retailers$435 NZD to $1,009 NZD

A
Cheapest Retailer
-
$435 NZD
$245 USD
B+
Retailer 2
-
$485 NZD
$273 USD
View
B+
Retailer 3
-
$599 NZD
$337 USD
View
B
Retailer 4
-
$716 NZD
$403 USD
View
B
Retailer 5
-
$771 NZD
€413 EUR
View
B
Retailer 6
-
$868 NZD
£385 GBP
View
B
Retailer 7
-
$1,009 NZD
£447 GBP
View
Most Expensive
NZ Jewellers
8bed7bea-4734-4b4c-b74f-6a97ba15d1d8 · Oct 30
$1,969 NZD
$1,108 USD
View
Price under review
7 more retailers have this diamond
Prices start from $435 NZDSave up to $574 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.

A
0.31ct Marquise
$435 NZD