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Marquise|Natural|GIA

1.20ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 5241088647

Certificate GIA 5241088647

Diamond specifications and retailer prices

From $5,548 SGD
As of November 5, 2026
Save $5,604 SGD (50%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $11,153 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5241088647. Listed at 13 retailers as of November 4, 2026, with prices from $5,548 to $11,153, a $5,604 spread on the same certified stone. MOH London lists it at $11,153. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5241088647
Dimensions10.42 × 5.34 × 3.39 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizeNone
Top View
10.42 mm5.34 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5241088647
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.5%

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 5
Current: $11,153 SGD|Low: $5,548 SGD|High: $11,153 SGD|Avg: $7,202 SGD
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
November 6, 2026
Retailer 11$5,548 SGD
Retailer 12$5,920 SGD
Retailer 10$5,985 SGD
Retailer 9$6,694 SGD
Retailer 13$6,732 SGD
Retailer 7$6,782 SGD
Retailer 2$6,810 SGD
Retailer 6$6,818 SGD
Retailer 3$7,126 SGD
Retailer 4$7,126 SGD
Retailer 5$7,369 SGD
Retailer 8$8,566 SGD
MOH London$11,153 SGD

3 data points across 13 retailers

13 retailers$5,548 SGD to $11,153 SGD

B+
Cheapest Retailer
-
$5,548 SGD
B+
Retailer 2
-
$5,920 SGD
View
B
Retailer 3
-
$5,985 SGD
View
B
Retailer 4
-
$6,694 SGD
View
B
Retailer 5
-
$6,732 SGD
View
B
Retailer 6
-
$6,782 SGD
View
B
Retailer 7
-
$6,810 SGD
View
B
Retailer 8
-
$6,818 SGD
View
B
Retailer 9
-
$7,126 SGD
View
B
Retailer 10
-
$7,126 SGD
View
B
Retailer 11
-
$7,369 SGD
View
B
Retailer 12
-
$8,566 SGD
View
Most Expensive
B
MOH London
BE1C044CB · Nov 4
$11,153 SGD
£6,852 GBP
View
12 more retailers have this diamond
Prices start from $5,548 SGDSave up to $5,604 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
$5,548 SGD