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Oval|Natural|GIA

0.51ct H SI2 Oval Natural Diamond

GD • H/SI2 • GIA 1493981532

Certificate GIA 1493981532

Diamond specifications and retailer prices

From HK$4,577 HKD
As of November 6, 2026
Save HK$6,866 HKD (60%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$15,565 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 1493981532. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1493981532
Dimensions6.80 × 4.35 × 2.57 mm
L/W Ratio1.56
Key to symbols
Twinning Wisp, Feather, Knot
Top View
6.80 mm4.35 mm0.51 ctH / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1493981532
Side View
Table 58.0%CrownGirdle: ThickPavilionCulet: NoneDepth 59.0%

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$6,050 HKD|Low: HK$4,554 HKD|High: HK$11,599 HKD|Avg: HK$6,486 HKD|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7HK$4,554 HKD
Retailer 6HK$4,577 HKD
Retailer 4HK$4,812 HKD
Retailer 10HK$5,878 HKD
Retailer 8HK$5,956 HKD
Retailer 9HK$5,996 HKD
Retailer 1HK$6,050 HKD
Retailer 5HK$7,304 HKD
Retailer 2HK$7,555 HKD
Retailer 3HK$11,443 HKD

40 data points across 10 retailers

12 retailersHK$4,577 HKD to HK$11,443 HKD

B+
Cheapest Retailer
-
HK$4,577 HKD
Final sale: no returns
B+
Retailer 2
-
HK$4,812 HKD
View
Retailer 3
-
HK$4,961 HKD
View
Price last confirmed 29 days ago
Retailer 4
-
HK$5,345 HKD
View
Price last confirmed 29 days ago
Retailer 5
-
HK$5,345 HKD
View
Price last confirmed 38 days ago
Retailer 6
-
HK$5,729 HKD
View
Price last confirmed 38 days ago
B
Retailer 7
-
HK$5,956 HKD
View
B
Retailer 8
-
HK$5,996 HKD
View
B
Retailer 9
-
HK$6,050 HKD
View
B
Retailer 10
-
HK$7,304 HKD
View
C
Retailer 11
-
HK$11,443 HKD
View
Most Expensive
NZ Jewellers
4f03caa9-5f69-40d3-8af2-17a67eb13493 · Sep 30
HK$15,565 HKD
$1,986 USD
View
Price under review
11 more retailers have this diamond
Prices start from HK$4,577 HKDSave up to HK$6,866 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$4,577 HKD