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Oval|Natural|GIA

0.51ct H SI2 Oval Natural Diamond

GD • H/SI2 • GIA 1525115355

Certificate GIA 1525115355

Diamond specifications and retailer prices

From HK$4,036 HKD
As of November 6, 2026
Save HK$6,066 HKD (60%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$13,715 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 1525115355. Listed at 11 retailers as of November 2, 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1525115355
Dimensions6.86 × 4.35 × 2.69 mm
L/W Ratio1.58
Key to symbols
Crystal, Feather
Top View
6.86 mm4.35 mm0.51 ctH / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1525115355
Side View
Table 54.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 61.8%

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$5,471 HKD|Low: HK$3,699 HKD|High: HK$10,220 HKD|Avg: HK$5,536 HKD|+5.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5HK$4,036 HKD
Retailer 8HK$4,373 HKD
Retailer 10HK$4,710 HKD
Retailer 6HK$4,875 HKD
Retailer 2HK$4,914 HKD
Retailer 9HK$5,047 HKD
Retailer 1HK$5,471 HKD
Retailer 7HK$5,721 HKD
Retailer 4HK$6,489 HKD
Retailer 3HK$10,102 HKD

41 data points across 10 retailers

11 retailersHK$4,036 HKD to HK$10,102 HKD

B+
Cheapest Retailer
-
HK$4,036 HKD
Final sale: no returns
Retailer 2
-
HK$4,373 HKD
View
Price last confirmed 29 days ago
Retailer 3
-
HK$4,710 HKD
View
Price last confirmed 29 days ago
Retailer 4
-
HK$4,710 HKD
View
Price last confirmed 38 days ago
B+
Retailer 5
-
HK$4,914 HKD
View
Retailer 6
-
HK$5,047 HKD
View
Price last confirmed 38 days ago
B
Retailer 7
-
HK$5,400 HKD
View
B
Retailer 8
-
HK$5,471 HKD
View
B
Retailer 9
-
HK$6,489 HKD
View
C
Retailer 10
-
HK$10,102 HKD
View
Most Expensive
NZ Jewellers
16861eeb-55f2-43ac-b2ba-983adf7bd2fb · Sep 30
HK$13,715 HKD
$1,750 USD
View
Price last confirmed 37 days ago
10 more retailers have this diamond
Prices start from HK$4,036 HKDSave up to HK$6,066 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$4,036 HKD