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Marquise|Natural|IGI

0.31ct F SI2 Marquise Natural Diamond

GD • F/SI2 • IGI 782673823

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 782673823

Diamond specifications and retailer prices

From $358 AUD
$251 USD
As of October 29, 2026
Save $474 AUD (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,621 AUD at NZ Jewellers · As of October 3, 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 F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI 782673823. 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
F
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle35.1°
Pavilion angle42.4°
OriginNatural
Grading LabIGI
CertificateIGI 782673823
Dimensions6.47 × 3.49 × 2.31 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizePointed
Top View
6.47 mm3.49 mm0.31 ctF / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 782673823
Side View
Table 65.0%Crown 35.1°Girdle: THK-ETKPavilion 42.4°Culet: NoneDepth 66.2%

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 29
Current: $1,621 AUD|Low: $358 AUD|High: $1,621 AUD|Avg: $679 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5$358 AUD
Retailer 8$409 AUD
Retailer 6$496 AUD
Retailer 4$584 AUD
Retailer 7$596 AUD
Retailer 2$635 AUD
Retailer 3$832 AUD
NZ Jewellers$1,621 AUD

21 data points across 8 retailers

8 retailers$358 AUD to $832 AUD

Retailer 1
-
$358 AUD
$251 USD
Price last confirmed 25 days ago
B+
Retailer 2
-
$358 AUD
$251 USD
View
Retailer 3
-
$439 AUD
$308 USD
View
Price last confirmed 32 days ago
B+
Retailer 4
-
$496 AUD
$348 USD
View
B
Retailer 5
-
$584 AUD
$409 USD
View
B
Retailer 6
-
$635 AUD
€424 EUR
View
C
Retailer 7
-
$832 AUD
£459 GBP
View
Most Expensive
NZ Jewellers
dc6af70c-bc34-4b91-af70-0ede07ae9b74 · Oct 3
$1,621 AUD
$1,136 USD
View
Price under review
7 more retailers have this diamond
Prices start from $358 AUDSave up to $474 AUD

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+
0.31ct Marquise
$358 AUD