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Oval|Natural|GIA

0.51ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 2556761535

Certificate GIA 2556761535

Diamond specifications and retailer prices

From HK$2,994 HKD
As of November 6, 2026
Save HK$10,729 HKD (78%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$14,366 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556761535. Listed at 19 retailers as of November 5, 2026, with a 358% 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle34.7°
Pavilion angle39.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556761535
Dimensions6.32 × 4.64 × 2.76 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizeNone
Top View
6.32 mm4.64 mm0.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2556761535
Side View
Table 63.0%Crown 34.7°Girdle: MED-THKPavilion 39.6°Culet: NoneDepth 59.4%

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$13,723 HKD|Low: HK$2,774 HKD|High: HK$14,366 HKD|Avg: HK$4,683 HKD|-4.5%
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
November 6, 2026
Retailer 9HK$2,774 HKD
Retailer 6HK$2,994 HKD
Retailer 7HK$3,057 HKD
Retailer 4HK$3,245 HKD
Retailer 3HK$3,409 HKD
Retailer 16HK$3,495 HKD
Retailer 17HK$3,495 HKD
Retailer 14HK$3,746 HKD
Retailer 2HK$4,044 HKD
Retailer 5HK$4,091 HKD
Retailer 8HK$4,107 HKD
Retailer 10HK$4,248 HKD
Retailer 12HK$4,381 HKD
Retailer 15HK$4,499 HKD
Retailer 11HK$5,376 HKD
Retailer 13HK$8,261 HKD
NZ JewellersHK$13,723 HKD

30 data points across 17 retailers

19 retailersHK$2,994 HKD to HK$13,723 HKD

Retailer 1
-
HK$2,774 HKD
Price last confirmed 22 days ago
A
Retailer 2
-
HK$2,994 HKD
View
Final sale: no returns
Retailer 3
-
HK$3,057 HKD
View
Price last confirmed 9 days ago
A
Retailer 4
-
HK$3,245 HKD
View
A
Retailer 5
-
HK$3,409 HKD
View
Retailer 6
-
HK$3,495 HKD
View
Price last confirmed 8 days ago
A
Retailer 7
-
HK$3,495 HKD
View
A
Retailer 8
-
HK$3,746 HKD
View
Retailer 9
-
HK$3,911 HKD
View
Price last confirmed 21 days ago
A
Retailer 10
-
HK$4,044 HKD
View
A
Retailer 11
-
HK$4,091 HKD
View
A
Retailer 12
-
HK$4,107 HKD
View
A
Retailer 13
-
HK$4,248 HKD
View
A
Retailer 14
-
HK$4,381 HKD
View
A
Retailer 15
-
HK$4,499 HKD
View
B+
Retailer 16
-
HK$5,376 HKD
View
B
Retailer 17
-
HK$8,261 HKD
View
B
Retailer 18
-
HK$13,723 HKD
View
Most Expensive
NZ Jewellers
9e429250-2206-4f0c-994c-efa0161c3e00 · Sep 30
HK$14,366 HKD
$1,833 USD
View
Price last confirmed 37 days ago
18 more retailers have this diamond
Prices start from HK$2,994 HKDSave up to HK$10,729 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$2,994 HKD