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Marquise|Natural|GIA

1.20ct H SI1 Marquise Natural Diamond

ID • H/SI1 • GIA 1553732833

Certificate GIA 1553732833

Diamond specifications and retailer prices

From $4,334 SGD
As of November 2, 2026
Save $3,409 SGD (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,743 SGD at NZ Jewellers · As of November 3, 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 H 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 1553732833. Listed at 8 retailers as of November 2, 2026, with prices from $4,334 to $7,743, a $3,409 spread on the same certified stone. NZ Jewellers lists it at $7,743. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle41.36°
Pavilion angle40.79°
OriginNatural
Grading LabGIA
CertificateGIA 1553732833
Dimensions9.68 × 5.44 × 3.73 mm
L/W Ratio1.78
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Needle
Top View
9.68 mm5.44 mm1.20 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 1553732833
Side View
Table 57.0%Crown 41.36°Girdle: THK-VTKPavilion 40.79°Culet: NoneDepth 68.5%

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 2
Current: $7,743 SGD|Low: $4,281 SGD|High: $8,286 SGD|Avg: $5,585 SGD|-6.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 4, 2026
Retailer 3$4,334 SGD
Retailer 7$4,445 SGD
Retailer 2$4,562 SGD
Retailer 5$4,562 SGD
Retailer 6$4,615 SGD
Retailer 8$5,007 SGD
Retailer 4$7,433 SGD
NZ Jewellers$7,743 SGD

37 data points across 8 retailers

8 retailers$4,334 SGD to $7,743 SGD

B+
Cheapest Retailer
-
$4,334 SGD
B+
Retailer 2
-
$4,445 SGD
View
B+
Retailer 3
-
$4,562 SGD
View
B+
Retailer 4
-
$4,562 SGD
View
B+
Retailer 5
-
$4,615 SGD
View
Retailer 6
-
$5,007 SGD
View
Price last confirmed 30 days ago
B
Retailer 7
-
$7,433 SGD
View
Most Expensive
B
NZ Jewellers
857e2cb2-a4b0-4b3a-9072-4c8fbd91870c · Nov 3
$7,743 SGD
$6,042 USD
View
7 more retailers have this diamond
Prices start from $4,334 SGDSave up to $3,409 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
$4,334 SGD