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Marquise|Natural|IGI

1.51ct I I1 Marquise Natural Diamond

VG • I/I1 • IGI 712581706

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 712581706

Diamond specifications and retailer prices

From $3,106 AUD
$2,177 USD
As of November 1, 2026
Save $4,085 AUD (57%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,192 AUD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and I1 clarity (included), with a very-good cut grade and certified by IGI 712581706. Listed at 7 retailers as of October 30, 2026, with prices from $3,106 to $7,192, a $4,085 spread on the same certified stone. NZ Jewellers lists it at $7,192. 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
I
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle39.1°
OriginNatural
Grading LabIGI
CertificateIGI 712581706
Dimensions11.00 × 6.19 × 3.76 mm
L/W Ratio1.78
Girdle conditionFaceted
Culet sizePointed
Top View
11.00 mm6.19 mm1.51 ctI / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 712581706
Side View
Table 59.0%Crown 35.3°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 60.7%

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 1
Current: $7,192 AUD|Low: $2,701 AUD|High: $7,192 AUD|Avg: $4,029 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 8$2,701 AUD
Retailer 7$3,106 AUD
Retailer 2$3,440 AUD
Retailer 5$3,440 AUD
Retailer 6$3,599 AUD
Retailer 3$3,970 AUD
Retailer 4$4,295 AUD
NZ Jewellers$7,192 AUD

24 data points across 8 retailers

7 retailers$3,106 AUD to $7,192 AUD

B+
Cheapest Retailer
-
$3,106 AUD
$2,177 USD
B+
Retailer 2
-
$3,440 AUD
$2,411 USD
View
B+
Retailer 3
-
$3,440 AUD
$2,411 USD
View
B+
Retailer 4
-
$3,599 AUD
$2,522 USD
View
B+
Retailer 5
-
$3,970 AUD
$2,782 USD
View
B+
Retailer 6
-
$4,295 AUD
€2,867 EUR
View
Most Expensive
B+
NZ Jewellers
14daa5dc-e15a-47a9-a2d0-85f147491e8d · Oct 30
$7,192 AUD
$5,040 USD
View
6 more retailers have this diamond
Prices start from $3,106 AUDSave up to $4,085 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
$3,106 AUD