CaratHunter
Plans
Oval|Natural|GIA

0.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 1478792767

Certificate GIA 1478792767

Diamond specifications and retailer prices

From HK$7,516 HKD
As of November 6, 2026
Save HK$8,895 HKD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$21,921 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 1478792767. Listed at 18 retailers as of November 4, 2026, with a 118% 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1478792767
Dimensions6.46 × 4.31 × 2.72 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizeNone
Cert comments
Inscription(s): GIA 1478792767
Top View
6.46 mm4.31 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 1478792767
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 63.2%

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$7,955 HKD|Low: HK$6,380 HKD|High: HK$16,654 HKD|Avg: HK$10,481 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11HK$7,516 HKD
Retailer 8HK$7,563 HKD
Retailer 9HK$7,837 HKD
Retailer 1HK$7,955 HKD
Retailer 3HK$8,457 HKD
Retailer 10HK$9,248 HKD
Retailer 5HK$10,142 HKD
Retailer 2HK$11,748 HKD
Retailer 4HK$12,508 HKD
Retailer 6HK$13,872 HKD
Retailer 7HK$16,412 HKD

43 data points across 11 retailers

18 retailersHK$7,516 HKD to HK$16,412 HKD

B+
Cheapest Retailer
-
HK$7,516 HKD
Final sale: no returns
B+
Retailer 2
-
HK$7,540 HKD
View
B+
Retailer 3
-
HK$7,775 HKD
View
Retailer 4
-
HK$7,837 HKD
View
Price last confirmed 10 days ago
B
Retailer 5
-
HK$7,955 HKD
View
Retailer 6
-
HK$8,143 HKD
View
Price last confirmed 9 days ago
B
Retailer 7
-
HK$8,143 HKD
View
B
Retailer 8
-
HK$8,457 HKD
View
B
Retailer 9
-
HK$9,248 HKD
View
B
Retailer 10
-
HK$9,397 HKD
View
B
Retailer 11
-
HK$10,142 HKD
View
B
Retailer 12
-
HK$10,338 HKD
View
Retailer 13
-
HK$11,748 HKD
View
Price last confirmed 33 days ago
B
Retailer 14
-
HK$12,508 HKD
View
B
Retailer 15
-
HK$13,872 HKD
View
B
Retailer 16
-
HK$14,601 HKD
View
B
Retailer 17
-
HK$16,412 HKD
View
Most Expensive
NZ Jewellers
77584bb3-a968-4db0-8ddc-5397316cd7de · Nov 5
HK$21,921 HKD
$2,797 USD
View
Price under review
17 more retailers have this diamond
Prices start from HK$7,516 HKDSave up to HK$8,895 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$7,516 HKD