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Marquise|Natural|GIA

1.20ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 2557770054

Certificate GIA 2557770054

Diamond specifications and retailer prices

From $7,053 AUD
As of November 4, 2026
Save $6,063 AUD (46%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $13,116 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557770054. Listed at 20 retailers as of November 4, 2026, with prices from $7,053 to $13,116, a $6,063 spread on the same certified stone. MOH London lists it at $13,116. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle41.01°
Pavilion angle40.15°
OriginNatural
Grading LabGIA
CertificateGIA 2557770054
Dimensions10.07 × 5.44 × 3.55 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.07 mm5.44 mm1.20 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557770054
Side View
Table 59.0%Crown 41.01°Girdle: STK-VTKPavilion 40.15°Culet: NoneDepth 65.2%

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 4
Current: $13,116 AUD|Low: $6,443 AUD|High: $13,310 AUD|Avg: $8,905 AUD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
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Retailer 9
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Retailer 11
Retailer 12
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Retailer 16
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Retailer 22
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Retailer 24
November 7, 2026
Retailer 16$6,443 AUD
Retailer 14$6,846 AUD
Retailer 9$7,053 AUD
Retailer 10$7,568 AUD
Retailer 7$7,990 AUD
Retailer 3$8,056 AUD
Retailer 23$8,430 AUD
Retailer 2$8,479 AUD
Retailer 4$8,497 AUD
Retailer 18$8,660 AUD
Retailer 12$8,703 AUD
Retailer 13$8,812 AUD
Retailer 8$8,869 AUD
Retailer 6$9,038 AUD
Retailer 24$9,038 AUD
Retailer 5$9,329 AUD
Retailer 22$9,331 AUD
Retailer 19$9,441 AUD
Retailer 20$9,699 AUD
Retailer 11$9,844 AUD
Retailer 17$10,579 AUD
Retailer 21$10,891 AUD
Retailer 15$11,185 AUD
MOH London$13,116 AUD

21 data points across 24 retailers

20 retailers$7,053 AUD to $13,116 AUD

B+
Cheapest Retailer
-
$7,053 AUD
B
Retailer 2
-
$7,568 AUD
View
B
Retailer 3
-
$7,990 AUD
View
B
Retailer 4
-
$8,056 AUD
View
Retailer 5
-
$8,086 AUD
View
Price last confirmed 30 days ago
B
Retailer 6
-
$8,430 AUD
View
B
Retailer 7
-
$8,479 AUD
View
B
Retailer 8
-
$8,497 AUD
View
B
Retailer 9
-
$8,660 AUD
View
B
Retailer 10
-
$8,812 AUD
View
Retailer 11
-
$8,869 AUD
View
Price last confirmed 34 days ago
B
Retailer 12
-
$9,038 AUD
View
B
Retailer 13
-
$9,038 AUD
View
B
Retailer 14
-
$9,329 AUD
View
B
Retailer 15
-
$9,331 AUD
View
B
Retailer 16
-
$9,441 AUD
View
B
Retailer 17
-
$9,699 AUD
View
Retailer 18
-
$9,844 AUD
View
Price last confirmed 29 days ago
B
Retailer 19
-
$10,891 AUD
View
Most Expensive
B
MOH London
3DCC2BDE9 · Nov 4
$13,116 AUD
£7,096 GBP
View
19 more retailers have this diamond
Prices start from $7,053 AUDSave up to $6,063 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
$7,053 AUD