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Marquise|Natural|GIA

1.20ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 6565283603

Certificate GIA 6565283603

Diamond specifications and retailer prices

From $4,173 AUD
As of November 6, 2026
Save $5,552 AUD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,725 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565283603. Listed at 16 retailers as of November 5, 2026, with prices from $4,173 to $9,725, a $5,552 spread on the same certified stone. NZ Jewellers lists it at $9,725. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565283603
Dimensions10.59 × 5.58 × 3.55 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
10.59 mm5.58 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565283603
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.6%

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 6
Current: $9,725 AUD|Low: $4,033 AUD|High: $9,955 AUD|Avg: $5,837 AUD|-2.3%
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 7, 2026
Retailer 14$4,173 AUD
Retailer 13$4,490 AUD
Retailer 15$4,666 AUD
Retailer 6$4,672 AUD
Retailer 5$4,694 AUD
Retailer 12$4,750 AUD
Retailer 16$5,058 AUD
Retailer 7$5,177 AUD
Retailer 3$5,251 AUD
Retailer 10$5,563 AUD
Retailer 9$5,653 AUD
Retailer 4$5,835 AUD
Retailer 8$6,468 AUD
Retailer 11$6,497 AUD
Retailer 2$9,285 AUD
NZ Jewellers$9,725 AUD

41 data points across 16 retailers

16 retailers$4,173 AUD to $9,725 AUD

B+
Cheapest Retailer
-
$4,173 AUD
B+
Retailer 2
-
$4,490 AUD
View
B
Retailer 3
-
$4,666 AUD
View
Final sale: no returns
B
Retailer 4
-
$4,672 AUD
View
B
Retailer 5
-
$4,694 AUD
View
B
Retailer 6
-
$4,750 AUD
View
B
Retailer 7
-
$5,058 AUD
View
Retailer 8
-
$5,177 AUD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$5,251 AUD
View
B
Retailer 10
-
$5,563 AUD
View
B
Retailer 11
-
$5,653 AUD
View
B
Retailer 12
-
$5,822 AUD
View
B
Retailer 13
-
$5,835 AUD
View
B
Retailer 14
-
$6,497 AUD
View
B
Retailer 15
-
$9,285 AUD
View
Most Expensive
B
NZ Jewellers
a8e0ef56-9a38-4869-a38e-51cefdd1a697 · Nov 5
$9,725 AUD
$6,682 USD
View
15 more retailers have this diamond
Prices start from $4,173 AUDSave up to $5,552 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+
1.20ct Marquise
$4,173 AUD