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Marquise|Natural|HRD

1.51ct G SI2 Marquise Natural Diamond

ID • G/SI2 • HRD 260000171974

Certificate HRD 260000171974

Diamond specifications and retailer prices

From $4,915 AUD
As of November 6, 2026
Save $5,262 AUD (52%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $10,177 AUD at MOH London · As of November 2, 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 G 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 260000171974. Listed at 11 retailers as of November 2, 2026, with prices from $4,915 to $10,177, a $5,262 spread on the same certified stone. MOH London lists it at $10,177. 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
G
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabHRD
CertificateHRD 260000171974
Dimensions11.13 × 5.83 × 3.67 mm
L/W Ratio1.91
Top View
11.13 mm5.83 mm1.51 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateHRD 260000171974
Side View
Table 64.0%CrownGirdle: MediumPavilionCulet: NoneDepth 63.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $10,177 AUD|Low: $4,915 AUD|High: $10,408 AUD|Avg: $6,467 AUD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2$4,915 AUD
Retailer 6$5,130 AUD
Retailer 4$5,531 AUD
Retailer 5$5,616 AUD
Retailer 3$6,884 AUD
MOH London$10,177 AUD

38 data points across 6 retailers

11 retailers$4,915 AUD to $10,177 AUD

A
Cheapest Retailer
-
$4,915 AUD
A
Retailer 2
-
$5,130 AUD
View
A
Retailer 3
-
$5,531 AUD
View
A
Retailer 4
-
$5,616 AUD
View
Final sale: no returns
Retailer 5
-
$6,271 AUD
View
Price last confirmed 30 days ago
Retailer 6
-
$6,456 AUD
View
Price last confirmed 45 days ago
Retailer 7
-
$6,456 AUD
View
Price last confirmed 37 days ago
Retailer 8
-
$6,456 AUD
View
Price last confirmed 37 days ago
A
Retailer 9
-
$6,884 AUD
View
Retailer 10
-
$7,450 AUD
View
Price last confirmed 44 days ago
Most Expensive
B+
MOH London
F2FA0631A · Nov 2
$10,177 AUD
£5,506 GBP
View
10 more retailers have this diamond
Prices start from $4,915 AUDSave up to $5,262 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
$4,915 AUD