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Marquise|Natural|IGI

0.31ct I VS1 Marquise Natural Diamond

VG • I/VS1 • IGI 815640207

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 815640207

Diamond specifications and retailer prices

From $572 NZD
$322 USD
As of October 29, 2026
Save $755 NZD (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,190 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 815640207. 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
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.9°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 815640207
Dimensions6.70 × 3.52 × 2.22 mm
L/W Ratio1.90
Girdle conditionFaceted
Top View
6.70 mm3.52 mm0.31 ctI / VS1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 815640207
Side View
Table 60.0%Crown 32.9°Girdle: STK-VTKPavilion 40.2°Culet: NoneDepth 63.1%

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: $2,190 NZD|Low: $572 NZD|High: $2,190 NZD|Avg: $1,031 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6$572 NZD
Retailer 5$638 NZD
Retailer 7$808 NZD
Retailer 8$835 NZD
Retailer 2$980 NZD
Retailer 3$1,141 NZD
Retailer 4$1,327 NZD
NZ Jewellers$2,190 NZD

23 data points across 8 retailers

8 retailers$572 NZD to $1,327 NZD

A
Cheapest Retailer
-
$572 NZD
$322 USD
B+
Retailer 2
-
$638 NZD
$359 USD
View
B
Retailer 3
-
$808 NZD
$455 USD
View
B
Retailer 4
-
$835 NZD
$470 USD
View
B
Retailer 5
-
$980 NZD
€525 EUR
View
B
Retailer 6
-
$1,141 NZD
£506 GBP
View
B
Retailer 7
-
$1,327 NZD
£588 GBP
View
Most Expensive
NZ Jewellers
9b3ff419-7664-49f2-9f48-d20db58bbc66 · Oct 30
$2,190 NZD
$1,232 USD
View
Price under review
7 more retailers have this diamond
Prices start from $572 NZDSave up to $755 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
$572 NZD