Oval|Natural|GIA

1.30ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 6512704490

Certificate GIA 6512704490

Diamond specifications and retailer prices

From $2,655 USD
As of November 6, 2026
Save $3,284 USD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,999 USD 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 November 4, 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,655 USD|Low: $2,655 USD|High: $6,799 USD|Avg: $4,083 USD|-13.1%
Retailer 1
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
November 6, 2026
Retailer 1$2,655 USD
Retailer 4$3,041 USD
Retailer 16$3,161 USD
Retailer 3$3,204 USD
Retailer 5$3,287 USD
Retailer 14$3,301 USD
Retailer 2$3,425 USD
Retailer 10$3,685 USD
Retailer 13$3,706 USD
Retailer 15$3,795 USD
Retailer 8$4,017 USD
Retailer 9$4,145 USD
Retailer 7$4,307 USD
Retailer 11$4,347 USD
Retailer 6$5,142 USD
Retailer 12$5,939 USD

32 data points across 16 retailers

21 retailers$2,655 USD to $5,939 USD

A
Cheapest Retailer
-
$2,655 USD
B+
Retailer 2
-
$3,041 USD
View
B+
Retailer 3
-
$3,161 USD
View
B+
Retailer 4
-
$3,204 USD
View
B+
Retailer 5
-
$3,287 USD
View
Final sale: no returns
B+
Retailer 6
-
$3,301 USD
View
B
Retailer 7
-
$3,425 USD
View
B+
Retailer 8
-
$3,685 USD
View
B+
Retailer 9
-
$3,706 USD
View
B
Retailer 10
-
$3,795 USD
View
Retailer 11
-
$4,017 USD
View
Price last confirmed 45 days ago
Retailer 12
-
$4,017 USD
View
Price last confirmed 29 days ago
Retailer 13
-
$4,017 USD
View
Price last confirmed 25 days ago
B
Retailer 14
-
$4,145 USD
View
Retailer 15
-
$4,307 USD
View
Price last confirmed 33 days ago
B
Retailer 16
-
$4,347 USD
View
Retailer 17
-
$4,635 USD
View
Price last confirmed 45 days ago
Retailer 18
-
$4,635 USD
View
Price last confirmed 28 days ago
Retailer 19
-
$5,142 USD
View
Price last confirmed 11 days ago
B
Retailer 20
-
$5,939 USD
View
Most Expensive
NZ Jewellers
3b2bd033-6904-4a27-a687-b3d0e1a5b0a2 · Sep 30
$6,999 USD
View
Price last confirmed 37 days ago
20 more retailers have this diamond
Prices start from $2,655 USDSave up to $3,284 USD

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
$2,655 USD