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Oval|Natural|GIA

0.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 5516455267

Certificate GIA 5516455267

Diamond specifications and retailer prices

From HK$4,661 HKD
₹56,579 INR
As of November 2, 2026
Save HK$10,933 HKD (70%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$19,647 HKD at NZ Jewellers · As of October 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5516455267. Listed at 20 retailers as of October 28, 2026, with a 235% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5516455267
Dimensions6.77 × 4.41 × 2.68 mm
L/W Ratio1.54
Top View
6.77 mm4.41 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5516455267
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: 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 2
Current: HK$4,661 HKD|Low: HK$4,394 HKD|High: HK$15,644 HKD|Avg: HK$8,369 HKD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 1HK$4,661 HKD
Retailer 9HK$5,783 HKD
Retailer 2HK$6,261 HKD
Retailer 11HK$7,226 HKD
Retailer 4HK$7,472 HKD
Retailer 3HK$7,571 HKD
Retailer 6HK$8,865 HKD
Retailer 10HK$9,419 HKD
Retailer 7HK$9,669 HKD
Retailer 5HK$11,469 HKD
Retailer 8HK$15,595 HKD

34 data points across 11 retailers

20 retailersHK$4,661 HKD to HK$15,595 HKD

A
Cheapest Retailer
-
HK$4,661 HKD
₹56,579 INR
A
Retailer 2
-
HK$5,586 HKD
$712 USD
View
B+
Retailer 3
-
HK$5,783 HKD
$737 USD
View
Final sale: no returns
B+
Retailer 4
-
HK$6,261 HKD
$798 USD
View
B+
Retailer 5
-
HK$6,261 HKD
$798 USD
View
B+
Retailer 6
-
HK$6,355 HKD
$810 USD
View
B+
Retailer 7
-
HK$6,504 HKD
$829 USD
View
B+
Retailer 8
-
HK$6,881 HKD
$877 USD
View
B+
Retailer 9
-
HK$7,226 HKD
$921 USD
View
B+
Retailer 10
-
HK$7,305 HKD
$931 USD
View
B+
Retailer 11
-
HK$7,472 HKD
£750 GBP
View
B+
Retailer 12
-
HK$7,571 HKD
$965 USD
View
Retailer 13
-
HK$7,783 HKD
£781 GBP
View
Price last confirmed 33 days ago
B+
Retailer 14
-
HK$8,445 HKD
$1,076 USD
View
B+
Retailer 15
-
HK$8,865 HKD
€1,076 EUR
View
Retailer 16
-
HK$9,419 HKD
A$1,847 AUD
View
Price last confirmed 29 days ago
B
Retailer 17
-
HK$9,669 HKD
ZAR 19,909 ZAR
View
B
Retailer 18
-
HK$11,469 HKD
£1,151 GBP
View
B
Retailer 19
-
HK$15,595 HKD
£1,565 GBP
View
Most Expensive
NZ Jewellers
806b45fa-fdfa-4fed-8ef1-fa50bf360653 · Oct 30
HK$19,647 HKD
$2,504 USD
View
Price under review
19 more retailers have this diamond
Prices start from HK$4,661 HKDSave up to HK$10,933 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$4,661 HKD