CaratHunter
Plans
Oval|Natural|GIA

1.51ct H SI2 Oval Natural Diamond

EX • H/SI2 • GIA 7451259245

Certificate GIA 7451259245

Diamond specifications and retailer prices

From $7,337 AUD
$5,154 USD
As of November 2, 2026
Save $9,034 AUD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $16,371 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 H 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 7451259245. Listed at 19 retailers as of October 30, 2026, with prices from $7,337 to $16,371, a $9,034 spread on the same certified stone. NZ Jewellers lists it at $16,371. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7451259245
Dimensions8.95 × 6.36 × 3.98 mm
L/W Ratio1.41
Top View
8.95 mm6.36 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7451259245
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.7%

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 2
Current: $16,371 AUD|Low: $7,239 AUD|High: $16,371 AUD|Avg: $9,950 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9$7,337 AUD
Retailer 7$7,460 AUD
Retailer 11$8,191 AUD
Retailer 4$8,254 AUD
Retailer 3$8,868 AUD
Retailer 8$8,868 AUD
Retailer 12$9,350 AUD
Retailer 5$9,388 AUD
Retailer 2$10,099 AUD
Retailer 10$10,231 AUD
Retailer 6$14,420 AUD
NZ Jewellers$16,371 AUD

41 data points across 12 retailers

19 retailers$7,337 AUD to $16,371 AUD

A
Cheapest Retailer
-
$7,337 AUD
$5,154 USD
A
Retailer 2
-
$7,460 AUD
$5,240 USD
View
B+
Retailer 3
-
$7,645 AUD
$5,370 USD
View
B+
Retailer 4
-
$7,733 AUD
$5,432 USD
View
B+
Retailer 5
-
$7,835 AUD
$5,504 USD
View
B+
Retailer 6
-
$8,191 AUD
CA$7,991 CAD
View
B+
Retailer 7
-
$8,254 AUD
$5,798 USD
View
B+
Retailer 8
-
$8,868 AUD
$6,229 USD
View
B+
Retailer 9
-
$8,868 AUD
$6,229 USD
View
B+
Retailer 10
-
$8,868 AUD
$6,229 USD
View
B+
Retailer 11
-
$9,350 AUD
$6,568 USD
View
B+
Retailer 12
-
$9,388 AUD
£5,192 GBP
View
B
Retailer 13
-
$9,866 AUD
$6,930 USD
View
B
Retailer 14
-
$9,866 AUD
$6,930 USD
View
B+
Retailer 15
-
$10,099 AUD
€6,756 EUR
View
B
Retailer 16
-
$10,193 AUD
$7,160 USD
View
B
Retailer 17
-
$10,231 AUD
$7,187 USD
View
B
Retailer 18
-
$14,420 AUD
£7,976 GBP
View
Most Expensive
B
NZ Jewellers
5ec193df-b980-434b-968c-8d67a70d9ecc · Oct 30
$16,371 AUD
$11,500 USD
View
18 more retailers have this diamond
Prices start from $7,337 AUDSave up to $9,034 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
$7,337 AUD