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Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

ID • I/SI2 • GIA 2526737022

Certificate GIA 2526737022

Diamond specifications and retailer prices

From $3,918 AUD
HK$21,500 HKD
As of November 1, 2026
Save $4,929 AUD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,846 AUD at NZ Jewellers · As of October 30, 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 I 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 GIA 2526737022. Listed at 16 retailers as of October 30, 2026, with prices from $3,918 to $8,846, a $4,929 spread on the same certified stone. NZ Jewellers lists it at $8,846. 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
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2526737022
Dimensions9.66 × 6.25 × 3.87 mm
L/W Ratio1.55
Top View
9.66 mm6.25 mm1.51 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2526737022
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.9%

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 1
Current: $8,846 AUD|Low: $3,881 AUD|High: $9,040 AUD|Avg: $5,598 AUD|-2.1%
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
Retailer 15
November 1, 2026
Retailer 10$3,918 AUD
Retailer 7$4,037 AUD
Retailer 2$4,180 AUD
Retailer 8$4,953 AUD
Retailer 6$5,078 AUD
Retailer 14$5,078 AUD
Retailer 5$5,273 AUD
Retailer 13$5,285 AUD
Retailer 9$5,307 AUD
Retailer 15$5,395 AUD
Retailer 4$5,438 AUD
Retailer 3$5,860 AUD
Retailer 11$5,946 AUD
Retailer 12$8,537 AUD
NZ Jewellers$8,846 AUD

22 data points across 15 retailers

16 retailers$3,918 AUD to $8,846 AUD

A
Cheapest Retailer
-
$3,918 AUD
HK$21,500 HKD
A
Retailer 2
-
$4,037 AUD
SGD 3,832 SGD
View
A
Retailer 3
-
$4,180 AUD
₹279,662 INR
View
A
Retailer 4
-
$4,897 AUD
$3,440 USD
View
A
Retailer 5
-
$4,953 AUD
£2,740 GBP
View
A
Retailer 6
-
$5,078 AUD
$3,567 USD
View
A
Retailer 7
-
$5,078 AUD
$3,567 USD
View
A
Retailer 8
-
$5,273 AUD
$3,704 USD
View
A
Retailer 9
-
$5,285 AUD
$3,712 USD
View
A
Retailer 10
-
$5,307 AUD
£2,935 GBP
View
A
Retailer 11
-
$5,395 AUD
$3,790 USD
View
A
Retailer 12
-
$5,438 AUD
SGD 5,162 SGD
View
A
Retailer 13
-
$5,860 AUD
$4,116 USD
View
A
Retailer 14
-
$5,946 AUD
€3,978 EUR
View
B+
Retailer 15
-
$8,537 AUD
£4,722 GBP
View
Most Expensive
B+
NZ Jewellers
72db05aa-4e29-4f19-bbc2-f88ee99ad6d8 · Oct 30
$8,846 AUD
$6,214 USD
View
15 more retailers have this diamond
Prices start from $3,918 AUDSave up to $4,929 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
$3,918 AUD