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Oval|Natural|GIA

0.51ct H SI2 Oval Natural Diamond

GD • H/SI2 • GIA 6541445225

Certificate GIA 6541445225

Diamond specifications and retailer prices

From HK$4,185 HKD
As of November 6, 2026
Save HK$6,286 HKD (60%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$14,241 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6541445225. Listed at 12 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541445225
Dimensions6.39 × 4.55 × 2.65 mm
L/W Ratio1.40
Top View
6.39 mm4.55 mm0.51 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541445225
Side View
Table 59.0%CrownGirdlePavilionCulet: NoneDepth 58.1%

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$5,518 HKD|Low: HK$3,840 HKD|High: HK$10,604 HKD|Avg: HK$5,550 HKD|+5.5%
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
November 6, 2026
Retailer 8HK$4,185 HKD
Retailer 9HK$4,514 HKD
Retailer 10HK$4,514 HKD
Retailer 12HK$4,538 HKD
Retailer 2HK$4,891 HKD
Retailer 11HK$5,032 HKD
Retailer 13HK$5,243 HKD
Retailer 1HK$5,518 HKD
Retailer 5HK$5,525 HKD
Retailer 3HK$5,565 HKD
Retailer 4HK$5,572 HKD
Retailer 7HK$6,724 HKD
Retailer 6HK$10,471 HKD

41 data points across 13 retailers

12 retailersHK$4,185 HKD to HK$10,471 HKD

B+
Cheapest Retailer
-
HK$4,185 HKD
Final sale: no returns
B+
Retailer 2
-
HK$4,514 HKD
View
Retailer 3
-
HK$4,538 HKD
View
Price last confirmed 29 days ago
Retailer 4
-
HK$4,891 HKD
View
Price last confirmed 29 days ago
Retailer 5
-
HK$4,891 HKD
View
Price last confirmed 38 days ago
Retailer 6
-
HK$5,243 HKD
View
Price last confirmed 38 days ago
B
Retailer 7
-
HK$5,518 HKD
View
B
Retailer 8
-
HK$5,565 HKD
View
B
Retailer 9
-
HK$5,572 HKD
View
B
Retailer 10
-
HK$6,724 HKD
View
C
Retailer 11
-
HK$10,471 HKD
View
Most Expensive
NZ Jewellers
1b2cb95e-5a01-40bf-8121-0ef91a101cb5 · Sep 30
HK$14,241 HKD
$1,817 USD
View
Price last confirmed 37 days ago
11 more retailers have this diamond
Prices start from HK$4,185 HKDSave up to HK$6,286 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$4,185 HKD