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Oval|Natural|GIA

1.00ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 2564190909

Certificate GIA 2564190909

Diamond specifications and retailer prices

From $1,219 USD
As of November 4, 2026
Save $968 USD (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,187 USD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded J 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 2564190909. Listed at 10 retailers as of November 4, 2026, with prices from $1,219 to $2,187, a $968 spread on the same certified stone. Helzberg Diamonds lists it at $2,187. 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

1.00
Carat
J
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.15°
Pavilion angle39.64°
OriginNatural
Grading LabGIA
CertificateGIA 2564190909
Dimensions7.78 × 5.58 × 3.47 mm
L/W Ratio1.39
Culet sizeNone
Top View
7.78 mm5.58 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2564190909
Side View
Table 60.0%Crown 40.15°Girdle: MED-THKPavilion 39.64°Culet: NoneDepth 62.1%

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 4
Current: $2,187 USD|Low: $1,215 USD|High: $2,695 USD|Avg: $1,573 USD|-2.9%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$1,219 USD
Retailer 8$1,220 USD
Retailer 11$1,240 USD
Retailer 7$1,260 USD
Retailer 12$1,327 USD
Retailer 5$1,371 USD
Retailer 2$1,376 USD
Retailer 10$1,490 USD
Retailer 3$1,721 USD
Retailer 4$1,806 USD
Retailer 6$2,021 USD
Helzberg Diamonds$2,187 USD

31 data points across 12 retailers

10 retailers$1,219 USD to $2,187 USD

A
Cheapest Retailer
-
$1,219 USD
A
Retailer 2
-
$1,240 USD
View
Retailer 3
-
$1,260 USD
View
Price last confirmed 19 days ago
A
Retailer 4
-
$1,327 USD
View
A
Retailer 5
-
$1,371 USD
View
B+
Retailer 6
-
$1,376 USD
View
A
Retailer 7
-
$1,490 USD
View
B+
Retailer 8
-
$1,721 USD
View
B+
Retailer 9
-
$2,021 USD
View
Most Expensive
B
Helzberg Diamonds
XZRILMKHPGPGP · Nov 6
$2,187 USD
View
9 more retailers have this diamond
Prices start from $1,219 USDSave up to $968 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
1.00ct Oval
$1,219 USD