CaratHunter
Plans
Cushion|Natural|HRD

0.31ct F SI1 Cushion Natural Diamond

EX • F/SI1 • HRD 260000187992

Certificate HRD 260000187992

Diamond specifications and retailer prices

From $435 AUD
$305 USD
As of October 29, 2026
Save $498 AUD (53%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $933 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 0.31ct natural cushion diamond

This 0.31ct natural cushion sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 260000187992. Listed at 6 retailers as of October 29, 2026, with prices from $435 to $933, a $498 spread on the same certified stone. MOH London lists it at $933. 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

0.31
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 260000187992
Dimensions4.49 × 3.44 × 2.40 mm
L/W Ratio1.31
Top View
4.49 mm3.44 mm0.31 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 260000187992
Side View
Table 63.0%CrownGirdle: FAC-FACPavilionCuletDepth 69.6%

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 29
Current: $933 AUD|Low: $435 AUD|High: $944 AUD|Avg: $629 AUD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 3, 2026
Retailer 5$435 AUD
Retailer 2$526 AUD
Retailer 4$554 AUD
Retailer 6$590 AUD
Retailer 3$694 AUD
MOH London$933 AUD

43 data points across 6 retailers

6 retailers$435 AUD to $933 AUD

A
Cheapest Retailer
-
$435 AUD
$305 USD
A
Retailer 2
-
$526 AUD
£290 GBP
View
A
Retailer 3
-
$554 AUD
£306 GBP
View
B+
Retailer 4
-
$590 AUD
$414 USD
View
B+
Retailer 5
-
$694 AUD
€463 EUR
View
Most Expensive
B
MOH London
FE4144D03 · Nov 2
$933 AUD
£515 GBP
View
5 more retailers have this diamond
Prices start from $435 AUDSave up to $498 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
0.31ct Cushion
$435 AUD