Oval|Natural|GIA

1.30ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 6512704490

Certificate GIA 6512704490

Diamond specifications and retailer prices

From $4,752 NZD
₹255,067 INR
As of November 1, 2026
Save $5,873 NZD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $12,418 NZD 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 1
Current: $12,418 NZD|Low: $4,752 NZD|High: $12,418 NZD|Avg: $8,026 NZD
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 1, 2026
Retailer 2$4,752 NZD
Retailer 5$5,396 NZD
Retailer 17$5,609 NZD
Retailer 4$5,685 NZD
Retailer 6$5,832 NZD
Retailer 15$5,857 NZD
Retailer 3$6,077 NZD
Retailer 13$6,577 NZD
Retailer 10$6,604 NZD
Retailer 16$6,734 NZD
Retailer 9$7,127 NZD
Retailer 12$7,398 NZD
Retailer 8$7,642 NZD
Retailer 11$7,767 NZD
Retailer 7$9,124 NZD
Retailer 14$10,625 NZD
NZ Jewellers$12,418 NZD

32 data points across 17 retailers

21 retailers$4,752 NZD to $10,625 NZD

A
Cheapest Retailer
-
$4,752 NZD
₹255,067 INR
B+
Retailer 2
-
$5,396 NZD
$3,041 USD
View
B+
Retailer 3
-
$5,609 NZD
$3,161 USD
View
B+
Retailer 4
-
$5,685 NZD
$3,204 USD
View
B+
Retailer 5
-
$5,832 NZD
$3,287 USD
View
Final sale: no returns
B+
Retailer 6
-
$5,857 NZD
$3,301 USD
View
B
Retailer 7
-
$6,077 NZD
$3,425 USD
View
B+
Retailer 8
-
$6,577 NZD
$3,707 USD
View
B+
Retailer 9
-
$6,604 NZD
£2,931 GBP
View
B
Retailer 10
-
$6,734 NZD
$3,795 USD
View
Retailer 11
-
$7,127 NZD
$4,017 USD
View
Price last confirmed 40 days ago
Retailer 12
-
$7,127 NZD
$4,017 USD
View
Price last confirmed 25 days ago
Retailer 13
-
$7,127 NZD
$4,017 USD
View
Price last confirmed 20 days ago
B
Retailer 14
-
$7,398 NZD
€3,971 EUR
View
Retailer 15
-
$7,642 NZD
A$6,627 AUD
View
Price last confirmed 28 days ago
B
Retailer 16
-
$7,767 NZD
ZAR 70,721 ZAR
View
Retailer 17
-
$8,224 NZD
$4,635 USD
View
Price last confirmed 40 days ago
Retailer 18
-
$8,224 NZD
$4,635 USD
View
Price last confirmed 23 days ago
B
Retailer 19
-
$9,124 NZD
$5,142 USD
View
B
Retailer 20
-
$10,625 NZD
£4,715 GBP
View
Most Expensive
NZ Jewellers
3b2bd033-6904-4a27-a687-b3d0e1a5b0a2 · Sep 30
$12,418 NZD
$6,999 USD
View
Price last confirmed 32 days ago
20 more retailers have this diamond
Prices start from $4,752 NZDSave up to $5,873 NZD

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
$4,752 NZD