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Marquise|Natural|GIA

1.20ct F I1 Marquise Natural Diamond

F/I1 • GIA 2557054863

Certificate GIA 2557054863

Diamond specifications and retailer prices

From $4,674 AUD
HK$25,500 HKD
As of November 1, 2026
Save $5,796 AUD (55%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $10,470 AUD at NZ Jewellers · As of November 3, 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 I1 clarity (included) and certified by GIA 2557054863. Listed at 8 retailers as of November 1, 2026, with prices from $4,674 to $10,470, a $5,796 spread on the same certified stone. NZ Jewellers lists it at $10,470. 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
I1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557054863
Dimensions10.56 × 5.47 × 3.53 mm
L/W Ratio1.93
Top View
10.56 mm5.47 mm1.20 ctF / I1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2557054863
Side View
Table 54.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.5%

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 1
Current: $10,470 AUD|Low: $4,637 AUD|High: $11,041 AUD|Avg: $6,460 AUD|-5.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 3$4,674 AUD
Retailer 2$4,703 AUD
Retailer 6$5,547 AUD
Retailer 7$5,683 AUD
Retailer 4$6,010 AUD
Retailer 5$6,010 AUD
Retailer 8$6,935 AUD
NZ Jewellers$10,470 AUD

46 data points across 8 retailers

8 retailers$4,674 AUD to $10,470 AUD

B+
Cheapest Retailer
-
$4,674 AUD
HK$25,500 HKD
B+
Retailer 2
-
$4,703 AUD
₹312,784 INR
View
B
Retailer 3
-
$5,547 AUD
$3,874 USD
View
Final sale: no returns
B
Retailer 4
-
$5,683 AUD
$3,969 USD
View
B
Retailer 5
-
$6,010 AUD
$4,197 USD
View
B
Retailer 6
-
$6,010 AUD
$4,197 USD
View
B
Retailer 7
-
$6,935 AUD
$4,843 USD
View
Most Expensive
C
NZ Jewellers
f13b5eee-02de-4667-80aa-2fba9d58c56d · Nov 3
$10,470 AUD
$7,312 USD
View
7 more retailers have this diamond
Prices start from $4,674 AUDSave up to $5,796 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
$4,674 AUD