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Marquise|Natural|GIA

1.20ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 5563274178

Certificate GIA 5563274178

Diamond specifications and retailer prices

From $5,253 AUD
As of November 6, 2026
Save $6,952 AUD (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $12,205 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5563274178. Listed at 21 retailers as of November 5, 2026, with prices from $5,253 to $12,205, a $6,952 spread on the same certified stone. NZ Jewellers lists it at $12,205. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5563274178
Dimensions10.11 × 5.49 × 3.53 mm
L/W Ratio1.84
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Cavity, Needle, Indented Natural, Natural
Top View
10.11 mm5.49 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5563274178
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.4%

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: $12,205 AUD|Low: $5,197 AUD|High: $12,384 AUD|Avg: $7,684 AUD|-1.4%
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
Retailer 17
Retailer 18
November 7, 2026
Retailer 17$5,253 AUD
Retailer 14$5,417 AUD
Retailer 11$5,461 AUD
Retailer 7$6,206 AUD
Retailer 6$6,244 AUD
Retailer 12$6,797 AUD
Retailer 2$6,897 AUD
Retailer 3$7,006 AUD
Retailer 4$7,006 AUD
Retailer 9$7,006 AUD
Retailer 5$7,225 AUD
Retailer 8$7,409 AUD
Retailer 16$7,926 AUD
Retailer 10$8,083 AUD
Retailer 13$8,548 AUD
Retailer 18$10,793 AUD
Retailer 15$11,128 AUD
NZ Jewellers$12,205 AUD

27 data points across 18 retailers

21 retailers$5,253 AUD to $12,205 AUD

A
Cheapest Retailer
-
$5,253 AUD
A
Retailer 2
-
$5,417 AUD
View
A
Retailer 3
-
$5,461 AUD
View
B+
Retailer 4
-
$6,206 AUD
View
B+
Retailer 5
-
$6,244 AUD
View
B+
Retailer 6
-
$6,478 AUD
View
B+
Retailer 7
-
$6,484 AUD
View
B+
Retailer 8
-
$6,797 AUD
View
B+
Retailer 9
-
$6,897 AUD
View
B
Retailer 10
-
$7,006 AUD
View
Retailer 11
-
$7,006 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$7,006 AUD
View
Retailer 13
-
$7,165 AUD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
$7,225 AUD
View
B+
Retailer 15
-
$7,409 AUD
View
B+
Retailer 16
-
$7,926 AUD
View
B+
Retailer 17
-
$8,083 AUD
View
B
Retailer 18
-
$8,548 AUD
View
Retailer 19
-
$10,793 AUD
View
Price last confirmed 10 days ago
B
Retailer 20
-
$11,128 AUD
View
Most Expensive
B
NZ Jewellers
d2dedced-70e1-44c1-b269-040c0abc1bf8 · Nov 5
$12,205 AUD
$8,386 USD
View
20 more retailers have this diamond
Prices start from $5,253 AUDSave up to $6,952 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.

A
1.20ct Marquise
$5,253 AUD