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Oval|Natural|GIA

0.51ct J SI1 Oval Natural Diamond

GD • J/SI1 • GIA 2498422008

Certificate GIA 2498422008

Diamond specifications and retailer prices

From HK$3,762 HKD
As of November 6, 2026
Save HK$5,643 HKD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$12,783 HKD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter 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 2498422008. Listed at 14 retailers as of November 4, 2026, with a 150% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.51
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2498422008
Dimensions6.53 × 4.60 × 2.80 mm
L/W Ratio1.42
Top View
6.53 mm4.60 mm0.51 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2498422008
Side View
Table 55.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 61.0%

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$5,055 HKD|Low: HK$3,762 HKD|High: HK$9,522 HKD|Avg: HK$5,953 HKD|+5.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 5HK$3,762 HKD
Retailer 7HK$4,530 HKD
Retailer 1HK$5,055 HKD
Retailer 8HK$5,643 HKD
Retailer 4HK$6,090 HKD
Retailer 6HK$6,129 HKD
Retailer 2HK$6,317 HKD
Retailer 3HK$9,405 HKD

42 data points across 8 retailers

14 retailersHK$3,762 HKD to HK$9,405 HKD

B+
Cheapest Retailer
-
HK$3,762 HKD
Final sale: no returns
Retailer 2
-
HK$4,075 HKD
View
Price last confirmed 29 days ago
Retailer 3
-
HK$4,389 HKD
View
Price last confirmed 29 days ago
Retailer 4
-
HK$4,389 HKD
View
Price last confirmed 38 days ago
B
Retailer 5
-
HK$4,608 HKD
View
Retailer 6
-
HK$4,702 HKD
View
Price last confirmed 38 days ago
B
Retailer 7
-
HK$5,055 HKD
View
B
Retailer 8
-
HK$5,102 HKD
View
B
Retailer 9
-
HK$5,643 HKD
View
B
Retailer 10
-
HK$6,090 HKD
View
Retailer 11
-
HK$6,129 HKD
View
Price last confirmed 33 days ago
B
Retailer 12
-
HK$6,317 HKD
View
C
Retailer 13
-
HK$9,405 HKD
View
Most Expensive
NZ Jewellers
827003b3-0b82-4dbb-bc77-e102f710123f · Sep 30
HK$12,783 HKD
$1,631 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from HK$3,762 HKDSave up to HK$5,643 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+
0.51ct Oval
HK$3,762 HKD