CaratHunter
Plans
Marquise|Natural|GIA

1.20ct D SI2 Marquise Natural Diamond

ID • D/SI2 • GIA 3555587349

Certificate GIA 3555587349

Diamond specifications and retailer prices

From $5,363 SGD
As of November 1, 2026
Save $6,038 SGD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $12,341 SGD at NZ Jewellers · As of September 20, 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 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 3555587349. Listed at 17 retailers as of November 1, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555587349
Dimensions10.52 × 5.54 × 3.43 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cavity, Indented Natural, Cloud
Top View
10.52 mm5.54 mm1.20 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3555587349
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.9%

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 1
Current: $6,509 SGD|Low: $5,315 SGD|High: $11,463 SGD|Avg: $7,412 SGD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 9$5,363 SGD
Retailer 7$5,617 SGD
Retailer 4$6,290 SGD
Retailer 1$6,509 SGD
Retailer 3$6,607 SGD
Retailer 11$6,825 SGD
Retailer 6$6,983 SGD
Retailer 2$7,139 SGD
Retailer 12$7,356 SGD
Retailer 5$8,098 SGD
Retailer 10$10,318 SGD
Retailer 8$11,401 SGD

35 data points across 12 retailers

17 retailers$5,363 SGD to $11,401 SGD

A
Cheapest Retailer
-
$5,363 SGD
A
Retailer 2
-
$5,617 SGD
View
B+
Retailer 3
-
$6,290 SGD
View
B+
Retailer 4
-
$6,509 SGD
View
B+
Retailer 5
-
$6,731 SGD
View
Retailer 6
-
$6,825 SGD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
$6,983 SGD
View
B+
Retailer 8
-
$7,054 SGD
View
B+
Retailer 9
-
$7,139 SGD
View
B+
Retailer 10
-
$7,356 SGD
View
Retailer 11
-
$7,378 SGD
View
Price last confirmed 45 days ago
Retailer 12
-
$7,378 SGD
View
Price last confirmed 25 days ago
B+
Retailer 13
-
$8,098 SGD
View
Retailer 14
-
$8,514 SGD
View
Price last confirmed 45 days ago
Retailer 15
-
$10,318 SGD
View
Price last confirmed 9 days ago
B
Retailer 16
-
$11,401 SGD
View
Most Expensive
NZ Jewellers
511f7a61-bfc8-4c98-b7d1-edb8b243d320 · Sep 20
$12,341 SGD
$9,629 USD
View
Price last confirmed 46 days ago
16 more retailers have this diamond
Prices start from $5,363 SGDSave up to $6,038 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
$5,363 SGD