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Marquise|Natural|IGI

1.51ct I IF Marquise Natural Diamond

VG • I/IF • IGI 841646172

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 841646172

Diamond specifications and retailer prices

From $9,457 AUD
$6,628 USD
As of November 1, 2026
Save $8,681 AUD (48%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $18,139 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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 841646172. Listed at 16 retailers as of October 30, 2026, with prices from $9,457 to $18,139, a $8,681 spread on the same certified stone. NZ Jewellers lists it at $18,139. 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
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle38.5°
OriginNatural
Grading LabIGI
CertificateIGI 841646172
Dimensions11.15 × 6.00 × 3.75 mm
L/W Ratio1.86
Girdle conditionFaceted
Top View
11.15 mm6.00 mm1.51 ctI / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 841646172
Side View
Table 59.0%Crown 39.8°Girdle: STK-THKPavilion 38.5°Culet: NoneDepth 62.5%

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: Nov 1
Current: $18,139 AUD|Low: $9,457 AUD|High: $18,995 AUD|Avg: $12,066 AUD|-4.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 7$9,457 AUD
Retailer 4$9,515 AUD
Retailer 9$9,643 AUD
Retailer 3$10,010 AUD
Retailer 5$10,010 AUD
Retailer 16$10,011 AUD
Retailer 11$10,278 AUD
Retailer 8$10,712 AUD
Retailer 13$10,844 AUD
Retailer 2$11,011 AUD
Retailer 6$11,743 AUD
Retailer 10$11,848 AUD
Retailer 15$12,514 AUD
Retailer 14$13,325 AUD
Retailer 12$15,113 AUD
NZ Jewellers$18,139 AUD

23 data points across 16 retailers

16 retailers$9,457 AUD to $18,139 AUD

A
Cheapest Retailer
-
$9,457 AUD
$6,628 USD
A
Retailer 2
-
$9,515 AUD
$6,668 USD
View
A
Retailer 3
-
$9,643 AUD
£5,321 GBP
View
A
Retailer 4
-
$10,010 AUD
$7,015 USD
View
A
Retailer 5
-
$10,010 AUD
$7,015 USD
View
Final sale: no returns
A
Retailer 6
-
$10,011 AUD
$7,016 USD
View
A
Retailer 7
-
$10,278 AUD
£5,672 GBP
View
Retailer 8
-
$10,712 AUD
₹714,990 INR
View
Price last confirmed 13 days ago
A
Retailer 9
-
$10,844 AUD
$7,600 USD
View
A
Retailer 10
-
$11,011 AUD
$7,717 USD
View
A
Retailer 11
-
$11,743 AUD
£6,480 GBP
View
A
Retailer 12
-
$11,848 AUD
€7,908 EUR
View
A
Retailer 13
-
$12,514 AUD
$8,770 USD
View
A
Retailer 14
-
$13,325 AUD
ZAR 150,861 ZAR
View
B+
Retailer 15
-
$15,113 AUD
£8,340 GBP
View
Most Expensive
B
NZ Jewellers
f75061e3-ea73-47e7-bd2f-1d878be516db · Oct 30
$18,139 AUD
$12,712 USD
View
15 more retailers have this diamond
Prices start from $9,457 AUDSave up to $8,681 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.

A
1.51ct Marquise
$9,457 AUD