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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 $6,211 SGD
As of November 4, 2026
Save $5,339 SGD (46%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $11,550 SGD 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 $6,211 to $11,550, a $5,339 spread on the same certified stone. MOH London lists it at $11,550. 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: $11,550 SGD|Low: $5,674 SGD|High: $11,721 SGD|Avg: $7,836 SGD|-1.5%
MOH London
Retailer 2
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Retailer 4
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Retailer 24
November 6, 2026
Retailer 16$5,674 SGD
Retailer 14$6,029 SGD
Retailer 9$6,211 SGD
Retailer 10$6,664 SGD
Retailer 7$7,036 SGD
Retailer 3$7,094 SGD
Retailer 23$7,423 SGD
Retailer 20$7,467 SGD
Retailer 4$7,482 SGD
Retailer 13$7,626 SGD
Retailer 12$7,664 SGD
Retailer 2$7,760 SGD
Retailer 8$7,810 SGD
Retailer 6$7,959 SGD
Retailer 24$7,959 SGD
Retailer 5$8,215 SGD
Retailer 22$8,216 SGD
Retailer 18$8,314 SGD
Retailer 19$8,541 SGD
Retailer 11$8,669 SGD
Retailer 17$9,316 SGD
Retailer 21$9,590 SGD
Retailer 15$9,849 SGD
MOH London$11,550 SGD

20 data points across 24 retailers

20 retailers$6,211 SGD to $11,550 SGD

B+
Cheapest Retailer
-
$6,211 SGD
B
Retailer 2
-
$6,664 SGD
View
B
Retailer 3
-
$7,036 SGD
View
B
Retailer 4
-
$7,094 SGD
View
Retailer 5
-
$7,121 SGD
View
Price last confirmed 30 days ago
B
Retailer 6
-
$7,423 SGD
View
B
Retailer 7
-
$7,467 SGD
View
B
Retailer 8
-
$7,482 SGD
View
B
Retailer 9
-
$7,626 SGD
View
Retailer 10
-
$7,760 SGD
View
Retailer 11
-
$7,810 SGD
View
Price last confirmed 34 days ago
B
Retailer 12
-
$7,959 SGD
View
B
Retailer 13
-
$7,959 SGD
View
B
Retailer 14
-
$8,215 SGD
View
B
Retailer 15
-
$8,216 SGD
View
B
Retailer 16
-
$8,314 SGD
View
B
Retailer 17
-
$8,541 SGD
View
Retailer 18
-
$8,669 SGD
View
Price last confirmed 29 days ago
B
Retailer 19
-
$9,590 SGD
View
Most Expensive
B
MOH London
3DCC2BDE9 · Nov 4
$11,550 SGD
£7,096 GBP
View
19 more retailers have this diamond
Prices start from $6,211 SGDSave up to $5,339 SGD

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
$6,211 SGD