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Marquise|Natural|GIA

1.20ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 6565283603

Certificate GIA 6565283603

Diamond specifications and retailer prices

From $3,674 SGD
As of November 6, 2026
Save $4,889 SGD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,564 SGD at NZ Jewellers · As of November 5, 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 J 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 6565283603. Listed at 16 retailers as of November 5, 2026, with prices from $3,674 to $8,564, a $4,889 spread on the same certified stone. NZ Jewellers lists it at $8,564. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565283603
Dimensions10.59 × 5.58 × 3.55 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
10.59 mm5.58 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565283603
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.6%

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 6
Current: $8,564 SGD|Low: $3,551 SGD|High: $8,766 SGD|Avg: $5,140 SGD|-2.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 7, 2026
Retailer 13$3,674 SGD
Retailer 12$3,954 SGD
Retailer 14$4,109 SGD
Retailer 6$4,114 SGD
Retailer 5$4,133 SGD
Retailer 11$4,183 SGD
Retailer 15$4,454 SGD
Retailer 7$4,559 SGD
Retailer 16$4,624 SGD
Retailer 9$4,898 SGD
Retailer 2$4,978 SGD
Retailer 3$5,138 SGD
Retailer 8$5,695 SGD
Retailer 10$5,721 SGD
Retailer 4$8,414 SGD
NZ Jewellers$8,564 SGD

41 data points across 16 retailers

16 retailers$3,674 SGD to $8,564 SGD

B+
Cheapest Retailer
-
$3,674 SGD
B+
Retailer 2
-
$3,954 SGD
View
B
Retailer 3
-
$4,109 SGD
View
Final sale: no returns
B
Retailer 4
-
$4,114 SGD
View
B
Retailer 5
-
$4,133 SGD
View
B
Retailer 6
-
$4,183 SGD
View
B
Retailer 7
-
$4,454 SGD
View
Retailer 8
-
$4,559 SGD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$4,624 SGD
View
B
Retailer 10
-
$4,898 SGD
View
B
Retailer 11
-
$4,978 SGD
View
B
Retailer 12
-
$5,126 SGD
View
B
Retailer 13
-
$5,138 SGD
View
B
Retailer 14
-
$5,721 SGD
View
B
Retailer 15
-
$8,414 SGD
View
Most Expensive
B
NZ Jewellers
a8e0ef56-9a38-4869-a38e-51cefdd1a697 · Nov 5
$8,564 SGD
$6,682 USD
View
15 more retailers have this diamond
Prices start from $3,674 SGDSave up to $4,889 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
$3,674 SGD