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Marquise|Natural|GIA

1.20ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 7542999402

Certificate GIA 7542999402

Diamond specifications and retailer prices

From $3,762 AUD
As of November 5, 2026
Save $4,893 AUD (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $8,655 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 7542999402. Listed at 22 retailers as of November 5, 2026, with prices from $3,762 to $8,655, a $4,893 spread on the same certified stone. NZ Jewellers lists it at $8,655. 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
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle36°
OriginNatural
Grading LabGIA
CertificateGIA 7542999402
Dimensions9.97 × 5.39 × 3.57 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
9.97 mm5.39 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7542999402
Side View
Table 62.0%Crown 41.1°Girdle: MED-VTKPavilion 36°Culet: NoneDepth 66.2%

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 5
Current: $8,655 AUD|Low: $3,692 AUD|High: $8,684 AUD|Avg: $5,304 AUD|-0.3%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 7, 2026
Retailer 21$3,762 AUD
Retailer 16$4,030 AUD
Retailer 14$4,155 AUD
Retailer 4$4,170 AUD
Retailer 20$4,286 AUD
Retailer 3$4,500 AUD
Retailer 5$4,673 AUD
Retailer 12$4,724 AUD
Retailer 17$4,950 AUD
Retailer 6$4,977 AUD
Retailer 11$4,977 AUD
Retailer 13$5,140 AUD
Retailer 7$5,152 AUD
Retailer 19$5,193 AUD
Retailer 10$5,385 AUD
Retailer 8$5,482 AUD
Retailer 15$5,647 AUD
Retailer 18$5,782 AUD
Retailer 22$5,896 AUD
Retailer 9$6,017 AUD
Retailer 2$8,264 AUD
NZ Jewellers$8,655 AUD

26 data points across 22 retailers

22 retailers$3,762 AUD to $8,655 AUD

B+
Cheapest Retailer
-
$3,762 AUD
B+
Retailer 2
-
$4,030 AUD
View
B+
Retailer 3
-
$4,155 AUD
View
Final sale: no returns
B+
Retailer 4
-
$4,170 AUD
View
B+
Retailer 5
-
$4,286 AUD
View
B
Retailer 6
-
$4,500 AUD
View
B
Retailer 7
-
$4,673 AUD
View
B
Retailer 8
-
$4,724 AUD
View
B+
Retailer 9
-
$4,950 AUD
View
B+
Retailer 10
-
$4,977 AUD
View
B+
Retailer 11
-
$4,977 AUD
View
B+
Retailer 12
-
$5,140 AUD
View
B
Retailer 13
-
$5,152 AUD
View
B
Retailer 14
-
$5,193 AUD
View
B
Retailer 15
-
$5,385 AUD
View
B
Retailer 16
-
$5,482 AUD
View
Retailer 17
-
$5,647 AUD
View
Price last confirmed 25 days ago
B
Retailer 18
-
$5,782 AUD
View
B
Retailer 19
-
$5,896 AUD
View
Retailer 20
-
$6,017 AUD
View
Price last confirmed 9 days ago
B
Retailer 21
-
$8,264 AUD
View
Most Expensive
B
NZ Jewellers
20c75f28-2956-4641-a9e3-2d0ac41794c5 · Nov 5
$8,655 AUD
$5,947 USD
View
21 more retailers have this diamond
Prices start from $3,762 AUDSave up to $4,893 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
$3,762 AUD