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Radiant|Natural|HRD

1.51ct E SI2 Radiant Natural Diamond

ID • E/SI2 • HRD 260000041162

Certificate HRD 260000041162

Diamond specifications and retailer prices

From $4,503 AUD
SGD 4,275 SGD
As of October 29, 2026
Save $5,309 AUD (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $10,169 AUD at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant 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 260000041162. Listed at 12 retailers as of October 29, 2026, with a 118% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 260000041162
Dimensions7.71 × 5.75 × 3.90 mm
L/W Ratio1.34
Girdle conditionPolished
Top View
7.71 mm5.75 mm1.51 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 260000041162
Side View
Table 68.0%CrownGirdle: MediumPavilionCulet: NoneDepth 67.8%

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: Oct 29
Current: $10,169 AUD|Low: $4,503 AUD|High: $10,254 AUD|Avg: $6,660 AUD|-0.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 5$4,503 AUD
Retailer 2$4,791 AUD
Retailer 9$5,462 AUD
Retailer 10$5,771 AUD
Retailer 8$5,836 AUD
Retailer 7$6,047 AUD
Retailer 4$6,596 AUD
Retailer 6$6,734 AUD
Retailer 3$9,812 AUD
NZ Jewellers$10,169 AUD

44 data points across 10 retailers

12 retailers$4,503 AUD to $9,812 AUD

A
Cheapest Retailer
-
$4,503 AUD
SGD 4,275 SGD
A
Retailer 2
-
$4,791 AUD
₹320,590 INR
View
A
Retailer 3
-
$5,462 AUD
$3,837 USD
View
A
Retailer 4
-
$5,771 AUD
View
Retailer 5
-
$5,836 AUD
$4,100 USD
View
Price last confirmed 13 days ago
Retailer 6
-
$5,836 AUD
$4,100 USD
View
Price last confirmed 14 days ago
Retailer 7
-
$5,836 AUD
$4,100 USD
View
Price last confirmed 12 days ago
A
Retailer 8
-
$6,047 AUD
$4,248 USD
View
A
Retailer 9
-
$6,596 AUD
€4,413 EUR
View
Retailer 10
-
$6,734 AUD
$4,731 USD
View
Price last confirmed 11 days ago
A
Retailer 11
-
$9,812 AUD
£5,428 GBP
View
Most Expensive
NZ Jewellers
31a01ceb-6e70-4895-a398-fffdd7faea49 · Oct 18
$10,169 AUD
$7,144 USD
View
Price last confirmed 12 days ago
11 more retailers have this diamond
Prices start from $4,503 AUDSave up to $5,309 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 Radiant
$4,503 AUD