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Oval|Natural|GIA

0.51ct D SI1 Oval Natural Diamond

GD • D/SI1 • GIA 2528947522

Certificate GIA 2528947522

Diamond specifications and retailer prices

From HK$4,720 HKD
As of November 1, 2026
Save HK$6,749 HKD (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$17,786 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2528947522. Listed at 20 retailers as of November 1, 2026, with a 143% 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
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2528947522
Dimensions6.65 × 4.45 × 2.70 mm
L/W Ratio1.49
Top View
6.65 mm4.45 mm0.51 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2528947522
Side View
Table 57.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$4,756 HKD|Low: HK$4,720 HKD|High: HK$11,538 HKD|Avg: HK$7,341 HKD|-1.9%
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
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 5HK$4,720 HKD
Retailer 1HK$4,756 HKD
Retailer 8HK$5,727 HKD
Retailer 16HK$5,782 HKD
Retailer 3HK$6,355 HKD
Retailer 6HK$6,619 HKD
Retailer 4HK$7,226 HKD
Retailer 14HK$7,305 HKD
Retailer 11HK$7,534 HKD
Retailer 15HK$7,571 HKD
Retailer 9HK$7,689 HKD
Retailer 2HK$8,444 HKD
Retailer 7HK$8,536 HKD
Retailer 12HK$8,864 HKD
Retailer 13HK$9,669 HKD
Retailer 10HK$11,469 HKD

31 data points across 16 retailers

20 retailersHK$4,720 HKD to HK$11,469 HKD

A
Cheapest Retailer
-
HK$4,720 HKD
A
Retailer 2
-
HK$4,756 HKD
₹57,737 INR
View
Retailer 3
-
HK$5,672 HKD
$723 USD
View
Price last confirmed 31 days ago
Retailer 4
-
HK$5,727 HKD
$730 USD
View
Price last confirmed 34 days ago
B+
Retailer 5
-
HK$5,782 HKD
$737 USD
View
Final sale: no returns
Retailer 6
-
HK$5,892 HKD
$751 USD
View
Price last confirmed 32 days ago
B+
Retailer 7
-
HK$6,355 HKD
$810 USD
View
Retailer 8
-
HK$6,543 HKD
$834 USD
View
Price last confirmed 33 days ago
B+
Retailer 9
-
HK$6,619 HKD
SGD 1,140 SGD
View
B
Retailer 10
-
HK$7,226 HKD
$921 USD
View
B
Retailer 11
-
HK$7,305 HKD
$931 USD
View
B
Retailer 12
-
HK$7,534 HKD
£756 GBP
View
B
Retailer 13
-
HK$7,571 HKD
$965 USD
View
B
Retailer 14
-
HK$7,689 HKD
£772 GBP
View
B
Retailer 15
-
HK$8,444 HKD
$1,076 USD
View
Retailer 16
-
HK$8,536 HKD
A$1,674 AUD
View
Price last confirmed 29 days ago
B
Retailer 17
-
HK$8,864 HKD
€1,076 EUR
View
B
Retailer 18
-
HK$9,669 HKD
ZAR 19,909 ZAR
View
B
Retailer 19
-
HK$11,469 HKD
£1,151 GBP
View
Most Expensive
NZ Jewellers
832d887b-63a4-4071-9fb7-a2c8f5ad3a4b · Sep 30
HK$17,786 HKD
$2,267 USD
View
Price last confirmed 32 days ago
19 more retailers have this diamond
Prices start from HK$4,720 HKDSave up to HK$6,749 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.

A
0.51ct Oval
HK$4,720 HKD