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Marquise|Natural|HRD

1.51ct I SI2 Marquise Natural Diamond

ID • I/SI2 • HRD 260000176562

Certificate HRD 260000176562

Diamond specifications and retailer prices

From $4,873 AUD
As of November 6, 2026
Save $5,700 AUD (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $10,573 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded I 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 260000176562. Listed at 13 retailers as of November 4, 2026, with prices from $4,873 to $10,573, a $5,700 spread on the same certified stone. MOH London lists it at $10,573. 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
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabHRD
CertificateHRD 260000176562
Dimensions11.05 × 5.82 × 3.72 mm
L/W Ratio1.90
Top View
11.05 mm5.82 mm1.51 ctI / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateHRD 260000176562
Side View
Table 60.0%CrownGirdle: MediumPavilionCulet: NoneDepth 64.0%

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: $10,573 AUD|Low: $4,873 AUD|High: $11,244 AUD|Avg: $6,758 AUD|-4.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3$4,873 AUD
Retailer 5$5,136 AUD
Retailer 6$6,001 AUD
Retailer 8$6,145 AUD
Retailer 2$6,360 AUD
Retailer 4$6,608 AUD
Retailer 7$6,657 AUD
Retailer 9$6,874 AUD
MOH London$10,573 AUD

40 data points across 9 retailers

13 retailers$4,873 AUD to $10,573 AUD

A
Cheapest Retailer
-
$4,873 AUD
A
Retailer 2
-
$5,136 AUD
View
A
Retailer 3
-
$6,001 AUD
View
B+
Retailer 4
-
$6,145 AUD
View
Final sale: no returns
A
Retailer 5
-
$6,360 AUD
View
A
Retailer 6
-
$6,608 AUD
View
Retailer 7
-
$6,657 AUD
View
Price last confirmed 31 days ago
B+
Retailer 8
-
$6,874 AUD
View
Retailer 9
-
$6,976 AUD
View
Price last confirmed 45 days ago
Retailer 10
-
$6,976 AUD
View
Price last confirmed 37 days ago
Retailer 11
-
$8,048 AUD
View
Price last confirmed 44 days ago
Retailer 12
-
$8,048 AUD
View
Price last confirmed 62 days ago
Most Expensive
B+
MOH London
16B7E54B9 · Nov 4
$10,573 AUD
£5,720 GBP
View
12 more retailers have this diamond
Prices start from $4,873 AUDSave up to $5,700 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
$4,873 AUD