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Marquise|Natural|GIA

1.20ct F SI1 Marquise Natural Diamond

ID • F/SI1 • GIA 6561121500

Certificate GIA 6561121500

Diamond specifications and retailer prices

From $6,172 SGD
As of November 5, 2026
Save $7,882 SGD (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $14,054 SGD 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561121500. Listed at 22 retailers as of November 5, 2026, with prices from $6,172 to $14,054, a $7,882 spread on the same certified stone. NZ Jewellers lists it at $14,054. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561121500
Dimensions10.24 × 5.47 × 3.44 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
10.24 mm5.47 mm1.20 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561121500
Side View
Table 60.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 63.0%

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 5
Current: $14,054 SGD|Low: $6,171 SGD|High: $14,365 SGD|Avg: $8,576 SGD|-2.2%
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
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 19$6,172 SGD
Retailer 12$6,446 SGD
Retailer 3$6,819 SGD
Retailer 10$7,027 SGD
Retailer 4$7,100 SGD
Retailer 6$7,510 SGD
Retailer 20$7,588 SGD
Retailer 7$7,613 SGD
Retailer 8$7,613 SGD
Retailer 16$7,613 SGD
Retailer 17$7,981 SGD
Retailer 2$8,152 SGD
Retailer 14$8,209 SGD
Retailer 9$8,605 SGD
Retailer 5$8,784 SGD
Retailer 13$9,368 SGD
Retailer 11$9,468 SGD
Retailer 15$10,253 SGD
Retailer 18$12,347 SGD
NZ Jewellers$14,054 SGD

22 data points across 20 retailers

22 retailers$6,172 SGD to $14,054 SGD

B+
Cheapest Retailer
-
$6,172 SGD
Retailer 2
-
$6,446 SGD
View
Price last confirmed 17 days ago
B+
Retailer 3
-
$6,819 SGD
View
B+
Retailer 4
-
$7,027 SGD
View
Final sale: no returns
B+
Retailer 5
-
$7,100 SGD
View
B
Retailer 6
-
$7,510 SGD
View
B
Retailer 7
-
$7,588 SGD
View
B
Retailer 8
-
$7,613 SGD
View
B
Retailer 9
-
$7,613 SGD
View
Retailer 10
-
$7,613 SGD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$7,704 SGD
View
B
Retailer 12
-
$7,981 SGD
View
B
Retailer 13
-
$8,152 SGD
View
B
Retailer 14
-
$8,209 SGD
View
Retailer 15
-
$8,382 SGD
View
Price last confirmed 26 days ago
B
Retailer 16
-
$8,605 SGD
View
B
Retailer 17
-
$8,784 SGD
View
B
Retailer 18
-
$9,368 SGD
View
Retailer 19
-
$9,468 SGD
View
Price last confirmed 15 days ago
B
Retailer 20
-
$10,253 SGD
View
B
Retailer 21
-
$12,347 SGD
View
Most Expensive
B
NZ Jewellers
784cc176-74e4-4ff7-9ffc-1e7df921af93 · Nov 5
$14,054 SGD
$10,966 USD
View
21 more retailers have this diamond
Prices start from $6,172 SGDSave up to $7,882 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
$6,172 SGD