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Marquise|Natural|IGI

1.51ct M SI2 Marquise Natural Diamond

VG • M/SI2 • IGI 696515927

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 696515927

Diamond specifications and retailer prices

From $3,337 AUD
As of November 4, 2026
Save $969 AUD (23%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,727 AUD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 696515927. Listed at 11 retailers as of November 4, 2026, with a 29% 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

1.51
Carat
M
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 696515927
Dimensions11.60 × 6.03 × 3.85 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown
Top View
11.60 mm6.03 mm1.51 ctM / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 696515927
Side View
Table 58.0%Crown 33°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 63.8%

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: $7,727 AUD|Low: $2,062 AUD|High: $7,727 AUD|Avg: $3,934 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$2,062 AUD
Retailer 9$3,337 AUD
Retailer 8$3,483 AUD
Retailer 4$3,695 AUD
Retailer 6$3,695 AUD
Retailer 10$3,705 AUD
Retailer 7$3,899 AUD
Retailer 5$4,264 AUD
Retailer 2$4,307 AUD
Retailer 11$4,743 AUD
NZ Jewellers$7,727 AUD

19 data points across 11 retailers

11 retailers$3,337 AUD to $4,307 AUD

Retailer 1
-
$3,259 AUD
Price last confirmed 36 days ago
B+
Retailer 2
-
$3,337 AUD
View
B+
Retailer 3
-
$3,483 AUD
View
Retailer 4
-
$3,695 AUD
View
Price last confirmed 33 days ago
B+
Retailer 5
-
$3,695 AUD
View
Retailer 6
-
$3,695 AUD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
$3,899 AUD
View
Retailer 8
-
$4,264 AUD
View
Price last confirmed 33 days ago
B+
Retailer 9
-
$4,264 AUD
View
B+
Retailer 10
-
$4,307 AUD
View
Most Expensive
NZ Jewellers
a6ba854c-e077-4919-b9cc-a77dba299b5e · Oct 3
$7,727 AUD
$5,309 USD
View
Price last confirmed 34 days ago
10 more retailers have this diamond
Prices start from $3,337 AUDSave up to $969 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+
1.51ct Marquise
$3,337 AUD