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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 HK$9,554 HKD
As of November 4, 2026
Save HK$7,587 HKD (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$17,140 HKD 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 HK$9,554 to HK$17,140, a HK$7,587 spread on the same certified stone. Helzberg Diamonds lists it at HK$17,140. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$17,140 HKD|Low: HK$9,522 HKD|High: HK$21,122 HKD|Avg: HK$12,327 HKD|-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 9HK$9,554 HKD
Retailer 8HK$9,562 HKD
Retailer 11HK$9,718 HKD
Retailer 7HK$9,875 HKD
Retailer 12HK$10,400 HKD
Retailer 5HK$10,745 HKD
Retailer 2HK$10,784 HKD
Retailer 10HK$11,678 HKD
Retailer 3HK$13,488 HKD
Retailer 4HK$14,154 HKD
Retailer 6HK$15,839 HKD
Helzberg DiamondsHK$17,140 HKD

31 data points across 12 retailers

10 retailersHK$9,554 HKD to HK$17,140 HKD

A
Cheapest Retailer
-
HK$9,554 HKD
A
Retailer 2
-
HK$9,718 HKD
View
Retailer 3
-
HK$9,875 HKD
View
Price last confirmed 19 days ago
A
Retailer 4
-
HK$10,400 HKD
View
A
Retailer 5
-
HK$10,745 HKD
View
B+
Retailer 6
-
HK$10,784 HKD
View
A
Retailer 7
-
HK$11,678 HKD
View
B+
Retailer 8
-
HK$13,488 HKD
View
B+
Retailer 9
-
HK$15,839 HKD
View
Most Expensive
B
Helzberg Diamonds
XZRILMKHPGPGP · Nov 6
HK$17,140 HKD
$2,187 USD
View
9 more retailers have this diamond
Prices start from HK$9,554 HKDSave up to HK$7,587 HKD

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
HK$9,554 HKD