CaratHunter
Plans
Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 2245063367

Certificate GIA 2245063367

Diamond specifications and retailer prices

From $5,011 AUD
As of November 6, 2026
Save $6,907 AUD (58%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,918 AUD at NZ Jewellers · As of November 5, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2245063367. Listed at 9 retailers as of November 5, 2026, with prices from $5,011 to $11,918, a $6,907 spread on the same certified stone. NZ Jewellers lists it at $11,918. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle36.09°
OriginNatural
Grading LabGIA
CertificateGIA 2245063367
Dimensions8.97 × 6.23 × 4.03 mm
L/W Ratio1.44
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
8.97 mm6.23 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245063367
Side View
Table 59.0%CrownGirdle: STK-THKPavilion 36.09°Culet: NoneDepth 64.7%

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 6
Current: $11,918 AUD|Low: $4,973 AUD|High: $12,704 AUD|Avg: $7,854 AUD|-6.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9$5,011 AUD
Retailer 8$6,030 AUD
Retailer 3$6,382 AUD
Retailer 2$6,545 AUD
Retailer 6$6,840 AUD
Retailer 7$6,840 AUD
Retailer 4$7,714 AUD
Retailer 5$10,866 AUD
NZ Jewellers$11,918 AUD

37 data points across 9 retailers

9 retailers$5,011 AUD to $11,918 AUD

A
Cheapest Retailer
-
$5,011 AUD
B+
Retailer 2
-
$6,030 AUD
View
B+
Retailer 3
-
$6,382 AUD
View
B+
Retailer 4
-
$6,545 AUD
View
B+
Retailer 5
-
$6,840 AUD
View
B+
Retailer 6
-
$6,840 AUD
View
B+
Retailer 7
-
$7,714 AUD
View
B
Retailer 8
-
$10,866 AUD
View
Most Expensive
B
NZ Jewellers
eb5d03ee-47f6-44f0-a5a7-9fd7c8999cc4 · Nov 5
$11,918 AUD
$8,189 USD
View
8 more retailers have this diamond
Prices start from $5,011 AUDSave up to $6,907 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
$5,011 AUD