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Marquise|Natural|GIA

1.20ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 3555523261

Certificate GIA 3555523261

Diamond specifications and retailer prices

From $6,420 AUD
As of November 4, 2026
Save $7,973 AUD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $14,392 AUD 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 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 3555523261. Listed at 16 retailers as of November 4, 2026, with prices from $6,420 to $14,392, a $7,973 spread on the same certified stone. NZ Jewellers lists it at $14,392. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555523261
Dimensions10.56 × 5.52 × 3.26 mm
L/W Ratio1.91
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Needle
Top View
10.56 mm5.52 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555523261
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 59.0%

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 4
Current: $14,392 AUD|Low: $6,420 AUD|High: $14,392 AUD|Avg: $9,001 AUD
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 6, 2026
Retailer 8$6,420 AUD
Retailer 7$7,168 AUD
Retailer 13$7,382 AUD
Retailer 15$7,724 AUD
Retailer 12$8,011 AUD
Retailer 16$8,249 AUD
Retailer 10$8,392 AUD
Retailer 2$8,582 AUD
Retailer 3$8,582 AUD
Retailer 5$8,805 AUD
Retailer 14$8,805 AUD
Retailer 6$9,096 AUD
Retailer 9$9,236 AUD
Retailer 4$12,586 AUD
Retailer 11$12,677 AUD
NZ Jewellers$14,392 AUD

39 data points across 16 retailers

16 retailers$6,420 AUD to $14,392 AUD

B+
Cheapest Retailer
-
$6,420 AUD
B+
Retailer 2
-
$7,168 AUD
View
B+
Retailer 3
-
$7,382 AUD
View
B+
Retailer 4
-
$7,724 AUD
View
B+
Retailer 5
-
$8,011 AUD
View
B+
Retailer 6
-
$8,249 AUD
View
B+
Retailer 7
-
$8,392 AUD
View
B+
Retailer 8
-
$8,582 AUD
View
Retailer 9
-
$8,582 AUD
View
B
Retailer 10
-
$8,805 AUD
View
B
Retailer 11
-
$8,805 AUD
View
B
Retailer 12
-
$9,096 AUD
View
B+
Retailer 13
-
$9,236 AUD
View
B
Retailer 14
-
$12,586 AUD
View
B
Retailer 15
-
$12,677 AUD
View
Most Expensive
B
NZ Jewellers
5961da29-4e15-43e6-88ac-18a176dc5907 · Nov 5
$14,392 AUD
$9,889 USD
View
15 more retailers have this diamond
Prices start from $6,420 AUDSave up to $7,973 AUD

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
$6,420 AUD