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Marquise|Natural|IGI

1.00ct I VS1 Marquise Natural Diamond

VG • I/VS1 • IGI 712558404

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 712558404

Diamond specifications and retailer prices

From $4,121 AUD
As of November 1, 2026
Save $3,670 AUD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,140 AUD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 712558404. Listed at 15 retailers as of November 1, 2026, with a 89% 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

1.00
Carat
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle34°
OriginNatural
Grading LabIGI
CertificateIGI 712558404
Dimensions11.81 × 4.97 × 2.82 mm
L/W Ratio2.38
Girdle conditionFaceted
Culet sizePointed
Top View
11.81 mm4.97 mm1.00 ctI / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 712558404
Side View
Table 57.0%Crown 36°Girdle: ThickPavilion 34°Culet: NoneDepth 56.7%

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: $5,703 AUD|Low: $4,007 AUD|High: $7,907 AUD|Avg: $5,439 AUD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 5$4,121 AUD
Retailer 7$4,311 AUD
Retailer 2$4,923 AUD
Retailer 4$5,224 AUD
Retailer 6$5,481 AUD
Retailer 1$5,703 AUD
Retailer 3$7,791 AUD

41 data points across 7 retailers

15 retailers$4,121 AUD to $7,791 AUD

A
Cheapest Retailer
-
$4,121 AUD
A
Retailer 2
-
$4,148 AUD
View
A
Retailer 3
-
$4,311 AUD
View
Final sale: no returns
A
Retailer 4
-
$4,521 AUD
View
A
Retailer 5
-
$4,550 AUD
View
Retailer 6
-
$4,673 AUD
View
Price last confirmed 36 days ago
Retailer 7
-
$4,851 AUD
View
Price last confirmed 36 days ago
B+
Retailer 8
-
$4,877 AUD
View
A
Retailer 9
-
$4,923 AUD
View
B+
Retailer 10
-
$5,224 AUD
View
Retailer 11
-
$5,391 AUD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
$5,703 AUD
View
B+
Retailer 13
-
$5,987 AUD
View
B
Retailer 14
-
$7,791 AUD
View
Most Expensive
NZ Jewellers
600b89a4-b0ec-4249-8d45-14ad46d6c9e3 · Sep 30
$8,140 AUD
$5,698 USD
View
Price last confirmed 36 days ago
14 more retailers have this diamond
Prices start from $4,121 AUDSave up to $3,670 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
1.00ct Marquise
$4,121 AUD