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Marquise|Natural|GIA

1.20ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 2556199559

Certificate GIA 2556199559

Diamond specifications and retailer prices

From $3,640 SGD
As of November 4, 2026
Save $2,864 SGD (44%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,504 SGD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556199559. Listed at 11 retailers as of November 4, 2026, with prices from $3,640 to $6,504, a $2,864 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,504. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.64°
Pavilion angle39.18°
OriginNatural
Grading LabGIA
CertificateGIA 2556199559
Dimensions11.28 × 5.34 × 3.34 mm
L/W Ratio2.11
Top View
11.28 mm5.34 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556199559
Side View
Table 59.0%Crown 39.64°Girdle: MED-THKPavilion 39.18°Culet: NoneDepth 62.5%

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 4
Current: $3,873 SGD|Low: $3,640 SGD|High: $7,173 SGD|Avg: $4,635 SGD|-8.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 6, 2026
Retailer 5$3,640 SGD
Retailer 4$3,728 SGD
Retailer 1$3,873 SGD
Retailer 6$3,924 SGD
Retailer 3$4,249 SGD
Retailer 9$4,384 SGD
Retailer 7$4,674 SGD
Retailer 8$4,777 SGD
Retailer 2$4,842 SGD
Wholesale Diamonds Direct$6,504 SGD

39 data points across 10 retailers

11 retailers$3,640 SGD to $6,504 SGD

A
Cheapest Retailer
-
$3,640 SGD
A
Retailer 2
-
$3,728 SGD
View
A
Retailer 3
-
$3,873 SGD
View
A
Retailer 4
-
$3,924 SGD
View
B+
Retailer 5
-
$4,249 SGD
View
B+
Retailer 6
-
$4,384 SGD
View
B+
Retailer 7
-
$4,674 SGD
View
B+
Retailer 8
-
$4,777 SGD
View
B+
Retailer 9
-
$4,842 SGD
View
B
Retailer 10
-
$5,267 SGD
View
Most Expensive
B
Wholesale Diamonds Direct
369337227 · Nov 6
$6,504 SGD
$5,075 USD
View
10 more retailers have this diamond
Prices start from $3,640 SGDSave up to $2,864 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
$3,640 SGD