Oval|Natural|GIA

1.30ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 6512704490

Certificate GIA 6512704490

Diamond specifications and retailer prices

From $3,820 AUD
₹254,984 INR
As of November 2, 2026
Save $4,724 AUD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,987 AUD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.3ct natural oval diamond

This 1.3ct natural oval sits in the one-and-a-quarter to one-and-a-half 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 6512704490. Listed at 21 retailers as of October 29, 2026, with a 124% 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

1.30
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.39°
Pavilion angle38.8°
OriginNatural
Grading LabGIA
CertificateGIA 6512704490
Dimensions8.51 × 6.12 × 3.78 mm
L/W Ratio1.39
Top View
8.51 mm6.12 mm1.30 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6512704490
Side View
Table 59.0%Crown 40.39°Girdle: STK-THKPavilion 38.8°Culet: NoneDepth 61.8%

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: $9,987 AUD|Low: $3,820 AUD|High: $9,987 AUD|Avg: $6,414 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 2$3,820 AUD
Retailer 5$4,339 AUD
Retailer 17$4,510 AUD
Retailer 4$4,572 AUD
Retailer 6$4,690 AUD
Retailer 15$4,710 AUD
Retailer 3$4,887 AUD
Retailer 13$5,289 AUD
Retailer 11$5,311 AUD
Retailer 16$5,415 AUD
Retailer 9$5,732 AUD
Retailer 10$5,948 AUD
Retailer 8$6,146 AUD
Retailer 12$6,246 AUD
Retailer 7$7,338 AUD
Retailer 14$8,544 AUD
NZ Jewellers$9,987 AUD

33 data points across 17 retailers

21 retailers$3,820 AUD to $8,544 AUD

A
Cheapest Retailer
-
$3,820 AUD
₹254,984 INR
B+
Retailer 2
-
$4,339 AUD
$3,041 USD
View
B+
Retailer 3
-
$4,510 AUD
$3,161 USD
View
B+
Retailer 4
-
$4,572 AUD
$3,204 USD
View
B+
Retailer 5
-
$4,690 AUD
$3,287 USD
View
Final sale: no returns
B+
Retailer 6
-
$4,710 AUD
$3,301 USD
View
B
Retailer 7
-
$4,887 AUD
$3,425 USD
View
B+
Retailer 8
-
$5,289 AUD
$3,707 USD
View
B+
Retailer 9
-
$5,311 AUD
£2,931 GBP
View
B
Retailer 10
-
$5,415 AUD
$3,795 USD
View
Retailer 11
-
$5,732 AUD
$4,017 USD
View
Price last confirmed 41 days ago
Retailer 12
-
$5,732 AUD
$4,017 USD
View
Price last confirmed 25 days ago
Retailer 13
-
$5,732 AUD
$4,017 USD
View
Price last confirmed 21 days ago
B
Retailer 14
-
$5,948 AUD
€3,970 EUR
View
Retailer 15
-
$6,146 AUD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$6,246 AUD
ZAR 70,721 ZAR
View
Retailer 17
-
$6,614 AUD
$4,635 USD
View
Price last confirmed 41 days ago
Retailer 18
-
$6,614 AUD
$4,635 USD
View
Price last confirmed 24 days ago
B
Retailer 19
-
$7,338 AUD
$5,142 USD
View
B
Retailer 20
-
$8,544 AUD
£4,715 GBP
View
Most Expensive
NZ Jewellers
3b2bd033-6904-4a27-a687-b3d0e1a5b0a2 · Sep 30
$9,987 AUD
$6,999 USD
View
Price last confirmed 33 days ago
20 more retailers have this diamond
Prices start from $3,820 AUDSave up to $4,724 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
1.30ct Oval
$3,820 AUD