CaratHunter
Plans
Oval|Natural|GIA

0.51ct G SI1 Oval Natural Diamond

GD • G/SI1 • GIA 1557236320

Certificate GIA 1557236320

Diamond specifications and retailer prices

From HK$4,951 HKD
$631 USD
As of November 2, 2026
Save HK$7,445 HKD (60%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$16,838 HKD at NZ Jewellers · As of November 2, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1557236320. Listed at 16 retailers as of November 2, 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1557236320
Dimensions6.54 × 4.42 × 2.77 mm
L/W Ratio1.48
Key to symbols
Cloud, Crystal
Top View
6.54 mm4.42 mm0.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1557236320
Side View
Table 60.0%CrownGirdle: Sli. Thick - ThickPavilionCulet: NoneDepth 62.8%

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 2
Current: HK$16,838 HKD|Low: HK$4,543 HKD|High: HK$16,838 HKD|Avg: HK$7,247 HKD
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
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 4HK$4,951 HKD
Retailer 13HK$5,222 HKD
Retailer 17HK$5,367 HKD
Retailer 18HK$5,367 HKD
Retailer 8HK$5,375 HKD
Retailer 16HK$5,579 HKD
Retailer 3HK$6,198 HKD
Retailer 10HK$6,222 HKD
Retailer 7HK$6,355 HKD
Retailer 9HK$6,406 HKD
Retailer 2HK$6,591 HKD
Retailer 11HK$6,626 HKD
Retailer 6HK$6,787 HKD
Retailer 14HK$7,645 HKD
Retailer 5HK$8,074 HKD
Retailer 15HK$8,288 HKD
Retailer 12HK$12,396 HKD
NZ JewellersHK$16,838 HKD

29 data points across 18 retailers

16 retailersHK$4,951 HKD to HK$12,396 HKD

B+
Cheapest Retailer
-
HK$4,951 HKD
$631 USD
Final sale: no returns
B+
Retailer 2
-
HK$5,222 HKD
View
B+
Retailer 3
-
HK$5,367 HKD
$684 USD
View
B+
Retailer 4
-
HK$5,367 HKD
$684 USD
View
B+
Retailer 5
-
HK$5,579 HKD
$711 USD
View
B+
Retailer 6
-
HK$6,198 HKD
$790 USD
View
B
Retailer 7
-
HK$6,355 HKD
$810 USD
View
B
Retailer 8
-
HK$6,406 HKD
$816 USD
View
B
Retailer 9
-
HK$6,591 HKD
£661 GBP
View
B
Retailer 10
-
HK$6,626 HKD
£665 GBP
View
B
Retailer 11
-
HK$6,787 HKD
$865 USD
View
B
Retailer 12
-
HK$7,645 HKD
€928 EUR
View
Retailer 13
-
HK$8,074 HKD
A$1,583 AUD
View
Price last confirmed 29 days ago
B
Retailer 14
-
HK$8,288 HKD
ZAR 17,064 ZAR
View
B
Retailer 15
-
HK$12,396 HKD
£1,244 GBP
View
Most Expensive
NZ Jewellers
33e7d847-8cda-4ced-9bd2-7b92ebc57310 · Nov 2
HK$16,838 HKD
$2,146 USD
View
Price under review
15 more retailers have this diamond
Prices start from HK$4,951 HKDSave up to HK$7,445 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$4,951 HKD