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Marquise|Natural|GIA

1.20ct F SI2 Marquise Natural Diamond

GD • F/SI2 • GIA 6552877413

Certificate GIA 6552877413

Diamond specifications and retailer prices

From $6,031 AUD
As of November 4, 2026
Save $6,734 AUD (53%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,765 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 F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6552877413. Listed at 18 retailers as of November 4, 2026, with prices from $6,031 to $12,765, a $6,734 spread on the same certified stone. NZ Jewellers lists it at $12,765. 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

1.20
Carat
F
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6552877413
Dimensions10.19 × 5.37 × 3.50 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Needle
Top View
10.19 mm5.37 mm1.20 ctF / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6552877413
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 65.1%

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 4
Current: $12,765 AUD|Low: $6,031 AUD|High: $12,765 AUD|Avg: $8,009 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
November 6, 2026
Retailer 9$6,031 AUD
Retailer 8$6,130 AUD
Retailer 15$6,142 AUD
Retailer 14$6,436 AUD
Retailer 13$6,915 AUD
Retailer 16$6,915 AUD
Retailer 17$6,915 AUD
Retailer 5$6,938 AUD
Retailer 6$7,260 AUD
Retailer 2$7,505 AUD
Retailer 11$7,543 AUD
Retailer 4$7,979 AUD
Retailer 7$8,067 AUD
Retailer 10$8,588 AUD
Retailer 3$11,161 AUD
Retailer 12$12,156 AUD
NZ Jewellers$12,765 AUD

39 data points across 17 retailers

18 retailers$6,031 AUD to $12,765 AUD

B+
Cheapest Retailer
-
$6,031 AUD
B
Retailer 2
-
$6,130 AUD
View
B+
Retailer 3
-
$6,142 AUD
View
B
Retailer 4
-
$6,436 AUD
View
B
Retailer 5
-
$6,915 AUD
View
B
Retailer 6
-
$6,915 AUD
View
Retailer 7
-
$6,915 AUD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$6,938 AUD
View
B
Retailer 9
-
$7,260 AUD
View
B
Retailer 10
-
$7,505 AUD
View
B
Retailer 11
-
$7,543 AUD
View
B
Retailer 12
-
$7,979 AUD
View
B
Retailer 13
-
$8,067 AUD
View
Retailer 14
-
$8,424 AUD
View
Price last confirmed 25 days ago
B
Retailer 15
-
$8,588 AUD
View
C
Retailer 16
-
$11,161 AUD
View
C
Retailer 17
-
$12,156 AUD
View
Most Expensive
C
NZ Jewellers
a0229ab2-3257-43bd-b65c-afae8aea4987 · Nov 5
$12,765 AUD
$8,771 USD
View
17 more retailers have this diamond
Prices start from $6,031 AUDSave up to $6,734 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
$6,031 AUD