CaratHunter
Plans
Marquise|Natural|GIA

1.20ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 3555937032

Certificate GIA 3555937032

Diamond specifications and retailer prices

From $4,700 SGD
As of November 4, 2026
Save $3,722 SGD (44%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,421 SGD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded D 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 3555937032. Listed at 11 retailers as of November 4, 2026, with prices from $4,700 to $8,421, a $3,722 spread on the same certified stone. Helzberg Diamonds lists it at $8,421. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.76°
Pavilion angle40.92°
OriginNatural
Grading LabGIA
CertificateGIA 3555937032
Dimensions10.44 × 5.50 × 3.54 mm
L/W Ratio1.90
Culet sizeNone
Top View
10.44 mm5.50 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555937032
Side View
Table 57.0%Crown 38.76°Girdle: THN-THKPavilion 40.92°Culet: NoneDepth 64.3%

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: $8,421 SGD|Low: $4,700 SGD|High: $8,947 SGD|Avg: $6,051 SGD|-5.9%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7$4,700 SGD
Retailer 6$4,739 SGD
Retailer 5$4,814 SGD
Retailer 8$5,023 SGD
Retailer 11$5,130 SGD
Retailer 4$5,390 SGD
Retailer 9$5,953 SGD
Retailer 10$5,998 SGD
Retailer 2$6,041 SGD
Retailer 3$8,414 SGD
Helzberg Diamonds$8,421 SGD

42 data points across 11 retailers

11 retailers$4,700 SGD to $8,421 SGD

A
Cheapest Retailer
-
$4,700 SGD
A
Retailer 2
-
$4,739 SGD
View
A
Retailer 3
-
$4,814 SGD
View
A
Retailer 4
-
$5,023 SGD
View
A
Retailer 5
-
$5,130 SGD
View
A
Retailer 6
-
$5,390 SGD
View
B+
Retailer 7
-
$5,953 SGD
View
B+
Retailer 8
-
$5,998 SGD
View
B+
Retailer 9
-
$6,041 SGD
View
B
Retailer 10
-
$8,414 SGD
View
Most Expensive
B
Helzberg Diamonds
XZRJLLLPJNGJI · Nov 6
$8,421 SGD
$6,571 USD
View
10 more retailers have this diamond
Prices start from $4,700 SGDSave up to $3,722 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
$4,700 SGD