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Marquise|Natural|GIA

1.20ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 6545918778

Certificate GIA 6545918778

Diamond specifications and retailer prices

From $4,601 SGD
As of November 5, 2026
Save $5,279 SGD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,880 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545918778. Listed at 21 retailers as of November 4, 2026, with prices from $4,601 to $9,880, a $5,279 spread on the same certified stone. MOH London lists it at $9,880. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545918778
Dimensions10.36 × 5.54 × 3.53 mm
L/W Ratio1.87
Top View
10.36 mm5.54 mm1.20 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545918778
Side View
Table 63.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 63.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $9,880 SGD|Low: $4,601 SGD|High: $10,536 SGD|Avg: $6,299 SGD|-5.2%
MOH London
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
November 6, 2026
Retailer 18$4,601 SGD
Retailer 7$4,860 SGD
Retailer 13$4,909 SGD
Retailer 5$4,957 SGD
Retailer 8$4,970 SGD
Retailer 15$5,143 SGD
Retailer 6$5,199 SGD
Retailer 12$5,237 SGD
Retailer 4$5,602 SGD
Retailer 19$5,727 SGD
Retailer 10$5,913 SGD
Retailer 17$6,088 SGD
Retailer 14$6,116 SGD
Retailer 9$6,344 SGD
Retailer 20$6,344 SGD
Retailer 3$6,549 SGD
Retailer 16$6,604 SGD
Retailer 2$6,716 SGD
Retailer 11$8,999 SGD
MOH London$9,880 SGD

23 data points across 20 retailers

21 retailers$4,601 SGD to $9,880 SGD

A
Cheapest Retailer
-
$4,601 SGD
B+
Retailer 2
-
$4,780 SGD
View
B+
Retailer 3
-
$4,860 SGD
View
B+
Retailer 4
-
$4,909 SGD
View
B+
Retailer 5
-
$4,957 SGD
View
B+
Retailer 6
-
$4,970 SGD
View
B+
Retailer 7
-
$5,142 SGD
View
B+
Retailer 8
-
$5,143 SGD
View
B+
Retailer 9
-
$5,199 SGD
View
Final sale: no returns
B+
Retailer 10
-
$5,602 SGD
View
B+
Retailer 11
-
$5,727 SGD
View
B
Retailer 12
-
$5,913 SGD
View
B+
Retailer 13
-
$6,088 SGD
View
B+
Retailer 14
-
$6,116 SGD
View
B+
Retailer 15
-
$6,344 SGD
View
B+
Retailer 16
-
$6,344 SGD
View
B
Retailer 17
-
$6,549 SGD
View
B+
Retailer 18
-
$6,604 SGD
View
Retailer 19
-
$6,716 SGD
View
B
Retailer 20
-
$8,999 SGD
View
Most Expensive
B
MOH London
DF1557164 · Nov 4
$9,880 SGD
£6,070 GBP
View
20 more retailers have this diamond
Prices start from $4,601 SGDSave up to $5,279 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.

A
1.20ct Marquise
$4,601 SGD