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Marquise|Natural|GIA

1.20ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 5556672444

Certificate GIA 5556672444

Diamond specifications and retailer prices

From $4,825 AUD
As of November 6, 2026
Save $6,311 AUD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,135 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 H 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 5556672444. Listed at 19 retailers as of November 5, 2026, with prices from $4,825 to $11,135, a $6,311 spread on the same certified stone. NZ Jewellers lists it at $11,135. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5556672444
Dimensions10.60 × 5.49 × 3.49 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Needle
Top View
10.60 mm5.49 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5556672444
Side View
Table 61.0%CrownGirdle: STK-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: $11,135 AUD|Low: $4,972 AUD|High: $11,342 AUD|Avg: $7,240 AUD|-1.8%
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
November 7, 2026
Retailer 10$4,972 AUD
Retailer 4$5,694 AUD
Retailer 14$5,734 AUD
Retailer 7$5,900 AUD
Retailer 12$6,085 AUD
Retailer 11$6,284 AUD
Retailer 3$6,392 AUD
Retailer 16$6,392 AUD
Retailer 2$6,474 AUD
Retailer 9$6,510 AUD
Retailer 5$6,593 AUD
Retailer 17$6,608 AUD
Retailer 13$7,194 AUD
Retailer 6$7,375 AUD
Retailer 15$10,153 AUD
Retailer 8$10,387 AUD
NZ Jewellers$11,135 AUD

25 data points across 17 retailers

19 retailers$4,825 AUD to $11,135 AUD

B+
Cheapest Retailer
-
$4,825 AUD
B+
Retailer 2
-
$4,972 AUD
View
B+
Retailer 3
-
$5,694 AUD
View
B+
Retailer 4
-
$5,734 AUD
View
B
Retailer 5
-
$5,900 AUD
View
Final sale: no returns
B
Retailer 6
-
$5,931 AUD
View
B
Retailer 7
-
$6,085 AUD
View
B+
Retailer 8
-
$6,284 AUD
View
B+
Retailer 9
-
$6,392 AUD
View
B+
Retailer 10
-
$6,392 AUD
View
B+
Retailer 11
-
$6,474 AUD
View
Retailer 12
-
$6,510 AUD
View
Price last confirmed 13 days ago
B
Retailer 13
-
$6,593 AUD
View
B
Retailer 14
-
$6,608 AUD
View
B
Retailer 15
-
$7,194 AUD
View
B
Retailer 16
-
$7,375 AUD
View
B
Retailer 17
-
$10,153 AUD
View
Retailer 18
-
$10,387 AUD
View
Price last confirmed 10 days ago
Most Expensive
B
NZ Jewellers
0ba1fac9-0d20-40e7-abca-d8b5cda14998 · Nov 5
$11,135 AUD
$7,651 USD
View
18 more retailers have this diamond
Prices start from $4,825 AUDSave up to $6,311 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
$4,825 AUD