CaratHunter
Plans
Marquise|Natural|HRD

1.51ct J SI1 Marquise Natural Diamond

EX • J/SI1 • HRD 260000038419

Certificate HRD 260000038419

Diamond specifications and retailer prices

From $4,307 AUD
₹287,450 INR
As of November 2, 2026
Save $4,915 AUD (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $9,222 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 260000038419. Listed at 12 retailers as of October 30, 2026, with prices from $4,307 to $9,222, a $4,915 spread on the same certified stone. NZ Jewellers lists it at $9,222. 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

1.51
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabHRD
CertificateHRD 260000038419
Dimensions11.12 × 5.96 × 3.83 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizeNone
Top View
11.12 mm5.96 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateHRD 260000038419
Side View
Table 62.0%CrownGirdle: MediumPavilionCulet: NoneDepth 64.3%

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 2
Current: $9,222 AUD|Low: $4,307 AUD|High: $9,483 AUD|Avg: $6,042 AUD|-2.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 2$4,307 AUD
Retailer 10$4,802 AUD
Retailer 3$4,886 AUD
Retailer 8$5,292 AUD
Retailer 12$5,292 AUD
Retailer 9$5,496 AUD
Retailer 6$5,553 AUD
Retailer 11$5,565 AUD
Retailer 4$6,107 AUD
Retailer 5$6,195 AUD
Retailer 7$8,852 AUD
NZ Jewellers$9,222 AUD

30 data points across 12 retailers

12 retailers$4,307 AUD to $9,222 AUD

A
Cheapest Retailer
-
$4,307 AUD
₹287,450 INR
A
Retailer 2
-
$4,802 AUD
$3,365 USD
View
A
Retailer 3
-
$4,886 AUD
$3,424 USD
View
Final sale: no returns
A
Retailer 4
-
$5,292 AUD
$3,709 USD
View
A
Retailer 5
-
$5,292 AUD
$3,709 USD
View
B+
Retailer 6
-
$5,496 AUD
$3,852 USD
View
B+
Retailer 7
-
$5,553 AUD
£3,064 GBP
View
B+
Retailer 8
-
$5,565 AUD
$3,900 USD
View
B+
Retailer 9
-
$6,107 AUD
$4,280 USD
View
B+
Retailer 10
-
$6,195 AUD
€4,135 EUR
View
B
Retailer 11
-
$8,852 AUD
£4,885 GBP
View
Most Expensive
B
NZ Jewellers
dce1427b-e09b-41bc-8d01-af2946f9cb5f · Oct 30
$9,222 AUD
$6,463 USD
View
11 more retailers have this diamond
Prices start from $4,307 AUDSave up to $4,915 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
1.51ct Marquise
$4,307 AUD