CaratHunter
Plans
Oval|Natural|GIA

0.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 2567161655

Certificate GIA 2567161655

Diamond specifications and retailer prices

From HK$4,467 HKD
As of November 6, 2026
Save HK$10,737 HKD (71%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$15,205 HKD at NZ Jewellers · As of November 5, 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 F 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 2567161655. Listed at 16 retailers as of November 5, 2026, with prices from HK$4,467 to HK$15,205, a HK$10,737 spread on the same certified stone. NZ Jewellers lists it at HK$15,205. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2567161655
Dimensions6.26 × 4.50 × 2.84 mm
L/W Ratio1.39
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
6.26 mm4.50 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2567161655
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.1%

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 6
Current: HK$15,205 HKD|Low: HK$4,467 HKD|High: HK$15,549 HKD|Avg: HK$6,813 HKD|-2.2%
NZ Jewellers
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
November 6, 2026
Retailer 5HK$4,467 HKD
Retailer 7HK$4,765 HKD
Retailer 11HK$4,851 HKD
Retailer 12HK$5,220 HKD
Retailer 15HK$5,220 HKD
Retailer 13HK$5,596 HKD
Retailer 9HK$5,902 HKD
Retailer 2HK$5,917 HKD
Retailer 4HK$6,105 HKD
Retailer 3HK$6,348 HKD
Retailer 8HK$6,489 HKD
Retailer 6HK$6,693 HKD
Retailer 10HK$7,485 HKD
Retailer 14HK$11,192 HKD
NZ JewellersHK$15,205 HKD

27 data points across 15 retailers

16 retailersHK$4,467 HKD to HK$15,205 HKD

A
Cheapest Retailer
-
HK$4,467 HKD
Final sale: no returns
A
Retailer 2
-
HK$4,765 HKD
View
A
Retailer 3
-
HK$4,851 HKD
View
A
Retailer 4
-
HK$5,220 HKD
View
Retailer 5
-
HK$5,220 HKD
View
Price last confirmed 9 days ago
A
Retailer 6
-
HK$5,596 HKD
View
B+
Retailer 7
-
HK$5,902 HKD
View
B+
Retailer 8
-
HK$5,917 HKD
View
B+
Retailer 9
-
HK$6,105 HKD
View
B+
Retailer 10
-
HK$6,348 HKD
View
B+
Retailer 11
-
HK$6,489 HKD
View
B+
Retailer 12
-
HK$6,693 HKD
View
B+
Retailer 13
-
HK$7,485 HKD
View
Retailer 14
-
HK$7,861 HKD
View
Price last confirmed 34 days ago
B
Retailer 15
-
HK$11,192 HKD
View
Most Expensive
B
NZ Jewellers
ba5e2339-6805-4867-9208-27a31935c787 · Nov 5
HK$15,205 HKD
$1,940 USD
View
15 more retailers have this diamond
Prices start from HK$4,467 HKDSave up to HK$10,737 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$4,467 HKD