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Marquise|Natural|GIA

1.20ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 1557164573

Certificate GIA 1557164573

Diamond specifications and retailer prices

From $4,396 SGD
As of November 6, 2026
Save $4,932 SGD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $10,542 SGD at NZ Jewellers · As of October 21, 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 1557164573. Listed at 10 retailers as of November 4, 2026, with a 112% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1557164573
Dimensions10.24 × 5.42 × 3.53 mm
L/W Ratio1.89
Girdle conditionThick to Extremely Thick
Key to symbols
Cloud, Twinning Wisp, Crystal, Feather, Needle, Knot, Indented Natural, Natural
Top View
10.24 mm5.42 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1557164573
Side View
Table 59.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 65.3%

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 6
Current: $10,542 SGD|Low: $4,363 SGD|High: $10,856 SGD|Avg: $6,481 SGD|-2.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$4,396 SGD
Retailer 2$4,419 SGD
Retailer 7$4,719 SGD
Retailer 6$5,219 SGD
Retailer 9$5,761 SGD
Retailer 8$6,052 SGD
Retailer 10$6,052 SGD
Retailer 3$6,435 SGD
Retailer 4$9,327 SGD
NZ Jewellers$10,542 SGD

41 data points across 10 retailers

10 retailers$4,396 SGD to $9,327 SGD

A
Cheapest Retailer
-
$4,396 SGD
A
Retailer 2
-
$4,419 SGD
View
A
Retailer 3
-
$4,719 SGD
View
Final sale: no returns
A
Retailer 4
-
$5,219 SGD
View
Retailer 5
-
$5,761 SGD
View
Price last confirmed 12 days ago
Retailer 6
-
$6,052 SGD
View
Price last confirmed 15 days ago
Retailer 7
-
$6,052 SGD
View
Price last confirmed 15 days ago
B+
Retailer 8
-
$6,435 SGD
View
B
Retailer 9
-
$9,327 SGD
View
Most Expensive
NZ Jewellers
8e6d3230-004d-49e6-9863-3c524757f65c · Oct 21
$10,542 SGD
$8,226 USD
View
Price last confirmed 16 days ago
9 more retailers have this diamond
Prices start from $4,396 SGDSave up to $4,932 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
$4,396 SGD