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Oval|Natural|GIA

1.00ct J SI1 Oval Natural Diamond

GD • J/SI1 • GIA 6375818599

Certificate GIA 6375818599

Diamond specifications and retailer prices

From HK$15,244 HKD
As of November 6, 2026
Save HK$27,501 HKD (64%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$42,745 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6375818599. Listed at 20 retailers as of November 5, 2026, with prices from HK$15,244 to HK$42,745, a HK$27,501 spread on the same certified stone. NZ Jewellers lists it at HK$42,745. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6375818599
Dimensions8.68 × 5.52 × 3.23 mm
L/W Ratio1.57
Top View
8.68 mm5.52 mm1.00 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6375818599
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$25,393 HKD|Low: HK$14,217 HKD|High: HK$36,248 HKD|Avg: HK$21,828 HKD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6HK$15,244 HKD
Retailer 9HK$16,725 HKD
Retailer 8HK$17,086 HKD
Retailer 7HK$17,125 HKD
Retailer 2HK$19,374 HKD
Retailer 3HK$21,631 HKD
Retailer 10HK$22,901 HKD
Retailer 4HK$24,954 HKD
Retailer 1HK$25,393 HKD
Retailer 5HK$35,817 HKD

45 data points across 10 retailers

20 retailersHK$15,244 HKD to HK$42,745 HKD

B+
Cheapest Retailer
-
HK$15,244 HKD
B
Retailer 2
-
HK$16,725 HKD
View
B
Retailer 3
-
HK$17,086 HKD
View
Final sale: no returns
B
Retailer 4
-
HK$17,125 HKD
View
B
Retailer 5
-
HK$17,869 HKD
View
B
Retailer 6
-
HK$18,496 HKD
View
B
Retailer 7
-
HK$18,520 HKD
View
Retailer 8
-
HK$18,520 HKD
View
Price last confirmed 8 days ago
B
Retailer 9
-
HK$19,374 HKD
View
B
Retailer 10
-
HK$21,318 HKD
View
B
Retailer 11
-
HK$21,318 HKD
View
B
Retailer 12
-
HK$21,373 HKD
View
B
Retailer 13
-
HK$21,631 HKD
View
B
Retailer 14
-
HK$22,023 HKD
View
Retailer 15
-
HK$22,901 HKD
View
Price last confirmed 30 days ago
B
Retailer 16
-
HK$23,473 HKD
View
B
Retailer 17
-
HK$24,954 HKD
View
B
Retailer 18
-
HK$25,393 HKD
View
C
Retailer 19
-
HK$35,817 HKD
View
Most Expensive
C
NZ Jewellers
e519cd34-a49e-4053-9f6f-69489deec606 · Nov 5
HK$42,745 HKD
$5,454 USD
View
19 more retailers have this diamond
Prices start from HK$15,244 HKDSave up to HK$27,501 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.

B+
1.00ct Oval
HK$15,244 HKD