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Oval|Natural|HRD

1.51ct G SI2 Oval Natural Diamond

ID • G/SI2 • HRD 260000126786

Certificate HRD 260000126786

Diamond specifications and retailer prices

From $4,343 AUD
As of November 6, 2026
Save $5,611 AUD (56%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $10,277 AUD at NZ Jewellers · As of October 11, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval 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 260000126786. Listed at 17 retailers as of November 5, 2026, with a 129% 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
G
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabHRD
CertificateHRD 260000126786
Dimensions9.09 × 6.44 × 4.08 mm
L/W Ratio1.41
Top View
9.09 mm6.44 mm1.51 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateHRD 260000126786
Side View
Table 59.0%CrownGirdle: MediumPavilionCulet: NoneDepth 63.3%

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: $9,953 AUD|Low: $4,343 AUD|High: $10,277 AUD|Avg: $6,275 AUD|-3.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 7$4,343 AUD
Retailer 11$4,522 AUD
Retailer 10$5,190 AUD
Retailer 13$5,253 AUD
Retailer 6$5,273 AUD
Retailer 3$5,712 AUD
Retailer 4$5,712 AUD
Retailer 5$5,712 AUD
Retailer 2$5,763 AUD
Retailer 14$5,926 AUD
Retailer 8$6,091 AUD
Retailer 12$6,592 AUD
Retailer 9$9,553 AUD
NZ Jewellers$9,953 AUD

31 data points across 14 retailers

17 retailers$4,343 AUD to $9,953 AUD

A
Cheapest Retailer
-
$4,343 AUD
A
Retailer 2
-
$4,522 AUD
View
A
Retailer 3
-
$5,190 AUD
View
A
Retailer 4
-
$5,253 AUD
View
A
Retailer 5
-
$5,273 AUD
View
Final sale: no returns
Retailer 6
-
$5,712 AUD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$5,712 AUD
View
A
Retailer 8
-
$5,712 AUD
View
A
Retailer 9
-
$5,763 AUD
View
Retailer 10
-
$5,899 AUD
View
Price last confirmed 25 days ago
A
Retailer 11
-
$5,926 AUD
View
A
Retailer 12
-
$6,091 AUD
View
A
Retailer 13
-
$6,592 AUD
View
Retailer 14
-
$6,807 AUD
View
Price last confirmed 19 days ago
B+
Retailer 15
-
$9,553 AUD
View
B+
Retailer 16
-
$9,953 AUD
View
Most Expensive
NZ Jewellers
eb29355e-9a00-47bb-9ad4-3c3148885266 · Oct 11
$10,277 AUD
$7,061 USD
View
Price last confirmed 26 days ago
16 more retailers have this diamond
Prices start from $4,343 AUDSave up to $5,611 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 Oval
$4,343 AUD