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Marquise|Natural|IGI

1.31ct M SI2 Marquise Natural Diamond

VG • M/SI2 • IGI 674522736

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 674522736

Diamond specifications and retailer prices

From $2,317 AUD
As of November 4, 2026
Save $3,883 AUD (63%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,200 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.31ct natural marquise diamond

This 1.31ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 674522736. Listed at 11 retailers as of November 4, 2026, with prices from $2,317 to $6,200, a $3,883 spread on the same certified stone. NZ Jewellers lists it at $6,200. 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

1.31
Carat
M
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle40.5°
Pavilion angle39°
OriginNatural
Grading LabIGI
CertificateIGI 674522736
Dimensions10.19 × 5.57 × 3.72 mm
L/W Ratio1.83
Girdle conditionFaceted
Culet sizePointed
Top View
10.19 mm5.57 mm1.31 ctM / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 674522736
Side View
Table 61.0%Crown 40.5°Girdle: STK-THKPavilion 39°Culet: NoneDepth 66.8%

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: Nov 4
Current: $3,451 AUD|Low: $1,628 AUD|High: $3,471 AUD|Avg: $2,641 AUD|+10.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$1,628 AUD
Retailer 3$2,317 AUD
Retailer 2$2,496 AUD
Retailer 4$2,570 AUD
Retailer 6$2,737 AUD
Retailer 5$2,933 AUD
Retailer 7$3,024 AUD
Retailer 1$3,451 AUD

18 data points across 8 retailers

11 retailers$2,317 AUD to $6,200 AUD

B+
Cheapest Retailer
-
$2,317 AUD
B+
Retailer 2
-
$2,496 AUD
View
B+
Retailer 3
-
$2,541 AUD
View
Retailer 4
-
$2,541 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$2,570 AUD
View
B+
Retailer 6
-
$2,658 AUD
View
B+
Retailer 7
-
$2,737 AUD
View
Retailer 8
-
$2,933 AUD
View
Price last confirmed 61 days ago
B
Retailer 9
-
$2,933 AUD
View
B
Retailer 10
-
$3,451 AUD
View
Most Expensive
C
NZ Jewellers
8cafda69-97c0-4e45-9294-49338b1066dc · Nov 5
$6,200 AUD
$4,340 USD
View
10 more retailers have this diamond
Prices start from $2,317 AUDSave up to $3,883 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+
1.31ct Marquise
$2,317 AUD