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Marquise|Natural|GIA

1.20ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 1555950034

Certificate GIA 1555950034

Diamond specifications and retailer prices

From $3,896 AUD
As of November 5, 2026
Save $4,472 AUD (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,369 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555950034. Listed at 13 retailers as of November 5, 2026, with prices from $3,896 to $8,369, a $4,472 spread on the same certified stone. NZ Jewellers lists it at $8,369. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555950034
Dimensions11.01 × 5.47 × 3.30 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizeNone
Top View
11.01 mm5.47 mm1.20 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1555950034
Side View
Table 63.0%CrownGirdle: THN-ETKPavilionCulet: NoneDepth 60.3%

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 5
Current: $4,913 AUD|Low: $3,896 AUD|High: $8,130 AUD|Avg: $4,989 AUD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$3,896 AUD
Retailer 5$3,951 AUD
Retailer 7$4,087 AUD
Retailer 9$4,352 AUD
Retailer 8$4,519 AUD
Retailer 1$4,913 AUD
Retailer 3$4,970 AUD
Retailer 2$5,261 AUD
Retailer 4$8,012 AUD

43 data points across 9 retailers

13 retailers$3,896 AUD to $8,369 AUD

B+
Cheapest Retailer
-
$3,896 AUD
B+
Retailer 2
-
$3,951 AUD
View
B+
Retailer 3
-
$4,087 AUD
View
B
Retailer 4
-
$4,352 AUD
View
Retailer 5
-
$4,352 AUD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$4,519 AUD
View
B+
Retailer 7
-
$4,913 AUD
View
B+
Retailer 8
-
$4,970 AUD
View
B
Retailer 9
-
$5,021 AUD
View
B
Retailer 10
-
$5,261 AUD
View
Retailer 11
-
$5,571 AUD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$8,012 AUD
View
Most Expensive
C
NZ Jewellers
bd7e5fc3-cc88-4599-9f95-a01c6d533cfe · Nov 5
$8,369 AUD
$5,750 USD
View
12 more retailers have this diamond
Prices start from $3,896 AUDSave up to $4,472 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
$3,896 AUD