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Marquise|Natural|IGI

1.21ct J SI1 Marquise Natural Diamond

VG • J/SI1 • IGI 743559060

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 743559060

Diamond specifications and retailer prices

From $2,888 AUD
As of November 6, 2026
Save $3,653 AUD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,541 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 743559060. Listed at 18 retailers as of November 5, 2026, with prices from $2,888 to $6,541, a $3,653 spread on the same certified stone. NZ Jewellers lists it at $6,541. 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

1.21
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle43.4°
Pavilion angle39.1°
OriginNatural
Grading LabIGI
CertificateIGI 743559060
Dimensions10.98 × 5.45 × 3.37 mm
L/W Ratio2.01
Girdle conditionFaceted
Top View
10.98 mm5.45 mm1.21 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 743559060
Side View
Table 60.0%Crown 43.4°Girdle: THN-STKPavilion 39.1°Culet: NoneDepth 61.8%

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 6
Current: $6,541 AUD|Low: $2,888 AUD|High: $6,541 AUD|Avg: $3,583 AUD
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
Retailer 17
Retailer 18
November 7, 2026
Retailer 5$2,888 AUD
Retailer 6$2,901 AUD
Retailer 16$2,904 AUD
Retailer 10$2,911 AUD
Retailer 9$2,995 AUD
Retailer 13$3,035 AUD
Retailer 4$3,129 AUD
Retailer 18$3,129 AUD
Retailer 8$3,270 AUD
Retailer 3$3,273 AUD
Retailer 17$3,330 AUD
Retailer 11$3,458 AUD
Retailer 12$3,478 AUD
Retailer 7$3,609 AUD
Retailer 15$3,819 AUD
Retailer 14$4,250 AUD
Retailer 2$5,452 AUD
NZ Jewellers$6,541 AUD

26 data points across 18 retailers

18 retailers$2,888 AUD to $6,541 AUD

B+
Cheapest Retailer
-
$2,888 AUD
Final sale: no returns
A
Retailer 2
-
$2,901 AUD
View
A
Retailer 3
-
$2,904 AUD
View
A
Retailer 4
-
$2,911 AUD
View
A
Retailer 5
-
$2,995 AUD
View
A
Retailer 6
-
$3,035 AUD
View
A
Retailer 7
-
$3,129 AUD
View
Retailer 8
-
$3,129 AUD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$3,270 AUD
View
B+
Retailer 10
-
$3,273 AUD
View
B+
Retailer 11
-
$3,330 AUD
View
B+
Retailer 12
-
$3,458 AUD
View
B+
Retailer 13
-
$3,478 AUD
View
B+
Retailer 14
-
$3,609 AUD
View
B+
Retailer 15
-
$3,819 AUD
View
B
Retailer 16
-
$4,250 AUD
View
B
Retailer 17
-
$5,452 AUD
View
Most Expensive
B
NZ Jewellers
a59d7b72-179e-449d-a06b-0a4d91e7de12 · Nov 5
$6,541 AUD
$4,494 USD
View
17 more retailers have this diamond
Prices start from $2,888 AUDSave up to $3,653 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
1.21ct Marquise
$2,888 AUD