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Cushion|Natural|HRD

1.51ct M SI1 Cushion Natural Diamond

EX • M/SI1 • HRD 250000267022

Certificate HRD 250000267022

Diamond specifications and retailer prices

From $4,459 AUD
As of November 6, 2026
Save $1,334 AUD (23%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $5,793 AUD at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 250000267022. Listed at 4 retailers as of November 6, 2026, with prices from $4,459 to $5,793, a $1,334 spread on the same certified stone. Yorxs lists it at $5,793. 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
M
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 250000267022
Dimensions6.35 × 6.10 × 4.32 mm
L/W Ratio1.04
Top View
6.35 mm6.10 mm1.51 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 250000267022
Side View
Table 56.0%CrownGirdlePavilionCuletDepth 70.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,459 AUD|Low: $4,459 AUD|High: $5,873 AUD|Avg: $5,079 AUD|-12.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 6, 2026
Retailer 1$4,459 AUD
Retailer 2$4,775 AUD
Retailer 4$5,017 AUD
Retailer 3$5,234 AUD
Yorxs$5,793 AUD

20 data points across 5 retailers

4 retailers$4,459 AUD to $5,793 AUD

B
Cheapest Retailer
-
$4,459 AUD
B
Retailer 2
-
$4,775 AUD
View
Retailer 3
-
$5,234 AUD
View
Price last confirmed 13 days ago
Most Expensive
B
Yorxs
10B6A445B · Nov 6
$5,793 AUD
€3,791 EUR
View
3 more retailers have this diamond
Prices start from $4,459 AUDSave up to $1,334 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.

B
1.51ct Cushion
$4,459 AUD