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Marquise|Natural|HRD

1.51ct E SI2 Marquise Natural Diamond

EX • E/SI2 • HRD 250000234098

Certificate HRD 250000234098

Diamond specifications and retailer prices

From $11,992 AUD
$8,424 USD
As of October 30, 2026
Save $11,215 AUD (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $23,208 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 250000234098. Listed at 10 retailers as of October 30, 2026, with prices from $11,992 to $23,208, a $11,215 spread on the same certified stone. NZ Jewellers lists it at $23,208. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabHRD
CertificateHRD 250000234098
Dimensions11.74 × 5.99 × 3.75 mm
L/W Ratio1.96
Culet sizeNone
Top View
11.74 mm5.99 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateHRD 250000234098
Side View
Table 56.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.6%

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: Oct 30
Current: $23,208 AUD|Low: $8,332 AUD|High: $23,208 AUD|Avg: $13,957 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 3$8,332 AUD
Retailer 11$11,578 AUD
Retailer 9$11,992 AUD
Retailer 7$12,367 AUD
Retailer 5$12,807 AUD
Retailer 8$12,808 AUD
Retailer 10$13,876 AUD
Retailer 2$15,163 AUD
Retailer 6$16,010 AUD
Retailer 4$19,441 AUD
NZ Jewellers$23,208 AUD

26 data points across 11 retailers

10 retailers$11,992 AUD to $23,208 AUD

A
Cheapest Retailer
-
$11,992 AUD
$8,424 USD
A
Retailer 2
-
$12,367 AUD
$8,687 USD
View
A
Retailer 3
-
$12,807 AUD
$8,996 USD
View
Final sale: no returns
A
Retailer 4
-
$12,808 AUD
$8,997 USD
View
B+
Retailer 5
-
$13,876 AUD
$9,747 USD
View
B+
Retailer 6
-
$14,089 AUD
$9,897 USD
View
B+
Retailer 7
-
$15,163 AUD
€10,144 EUR
View
B+
Retailer 8
-
$16,010 AUD
$11,246 USD
View
B+
Retailer 9
-
$19,441 AUD
£10,753 GBP
View
Most Expensive
B
NZ Jewellers
a89fe4c7-170f-4e5d-a4f2-5749c15e6e07 · Oct 30
$23,208 AUD
$16,302 USD
View
9 more retailers have this diamond
Prices start from $11,992 AUDSave up to $11,215 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
$11,992 AUD