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Marquise|Natural|GIA

1.20ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 2566156667

Certificate GIA 2566156667

Diamond specifications and retailer prices

From $3,130 SGD
As of November 5, 2026
Save $2,358 SGD (43%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,488 SGD at Wholesale Diamonds Direct · As of November 3, 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 2566156667. Listed at 10 retailers as of November 3, 2026, with prices from $3,130 to $5,488, a $2,358 spread on the same certified stone. Wholesale Diamonds Direct lists it at $5,488. 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
SymmetryVery Good
FluorescenceStrong
Crown angle37.99°
Pavilion angle37.89°
OriginNatural
Grading LabGIA
CertificateGIA 2566156667
Dimensions10.60 × 5.54 × 3.31 mm
L/W Ratio1.91
Culet sizeNone
Top View
10.60 mm5.54 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2566156667
Side View
Table 61.0%Crown 37.99°Girdle: VTN-THKPavilion 37.89°Culet: NoneDepth 59.8%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $5,178 SGD|Low: $3,112 SGD|High: $5,820 SGD|Avg: $4,056 SGD|+19.1%
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 2$3,130 SGD
Retailer 5$3,323 SGD
Retailer 9$3,587 SGD
Retailer 4$3,650 SGD
Retailer 8$3,681 SGD
Retailer 6$3,999 SGD
Retailer 7$4,101 SGD
Retailer 3$4,240 SGD
Retailer 1$5,178 SGD
Wholesale Diamonds Direct$5,488 SGD

34 data points across 10 retailers

10 retailers$3,130 SGD to $5,488 SGD

A
Cheapest Retailer
-
$3,130 SGD
A
Retailer 2
-
$3,323 SGD
View
B+
Retailer 3
-
$3,587 SGD
View
A
Retailer 4
-
$3,650 SGD
View
A
Retailer 5
-
$3,681 SGD
View
B+
Retailer 6
-
$3,999 SGD
View
B+
Retailer 7
-
$4,101 SGD
View
B+
Retailer 8
-
$4,240 SGD
View
B
Retailer 9
-
$5,178 SGD
View
Most Expensive
B
Wholesale Diamonds Direct
348918947 · Nov 3
$5,488 SGD
$4,282 USD
View
9 more retailers have this diamond
Prices start from $3,130 SGDSave up to $2,358 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
$3,130 SGD