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Marquise|Natural|HRD

1.20ct J SI2 Marquise Natural Diamond

ID • J/SI2 • HRD 260000151242

Certificate HRD 260000151242

Diamond specifications and retailer prices

From $2,582 AUD
As of November 6, 2026
Save $2,722 AUD (51%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,571 AUD at NZ Jewellers · As of October 6, 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 HRD 260000151242. Listed at 14 retailers as of November 6, 2026, with a 105% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabHRD
CertificateHRD 260000151242
Dimensions10.85 × 5.67 × 3.33 mm
L/W Ratio1.91
Top View
10.85 mm5.67 mm1.20 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateHRD 260000151242
Side View
Table 59.0%CrownGirdle: MediumPavilionCulet: NoneDepth 58.7%

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: $6,571 AUD|Low: $2,502 AUD|High: $6,571 AUD|Avg: $3,686 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
November 7, 2026
Retailer 6$2,582 AUD
Retailer 9$2,810 AUD
Retailer 10$2,819 AUD
Retailer 8$3,037 AUD
Retailer 3$3,142 AUD
Retailer 12$3,144 AUD
Retailer 11$3,369 AUD
Retailer 5$3,478 AUD
Retailer 4$3,627 AUD
Retailer 7$4,135 AUD
Retailer 2$5,303 AUD
NZ Jewellers$6,571 AUD

38 data points across 12 retailers

14 retailers$2,582 AUD to $5,303 AUD

A
Cheapest Retailer
-
$2,582 AUD
B+
Retailer 2
-
$2,810 AUD
View
Final sale: no returns
A
Retailer 3
-
$2,819 AUD
View
A
Retailer 4
-
$3,037 AUD
View
Retailer 5
-
$3,142 AUD
View
Price last confirmed 31 days ago
Retailer 6
-
$3,144 AUD
View
Price last confirmed 30 days ago
Retailer 7
-
$3,144 AUD
View
Price last confirmed 14 days ago
Retailer 8
-
$3,369 AUD
View
Price last confirmed 12 days ago
Retailer 9
-
$3,461 AUD
View
Price last confirmed 37 days ago
B+
Retailer 10
-
$3,478 AUD
View
Retailer 11
-
$3,627 AUD
View
Price last confirmed 29 days ago
B+
Retailer 12
-
$4,135 AUD
View
B
Retailer 13
-
$5,303 AUD
View
Most Expensive
NZ Jewellers
9a5de61c-ecc6-4e09-b130-6f71f76a0d72 · Oct 6
$6,571 AUD
$4,515 USD
View
Price last confirmed 31 days ago
13 more retailers have this diamond
Prices start from $2,582 AUDSave up to $2,722 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
$2,582 AUD