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Round|Natural|GIA

0.51ct H SI2 Round Natural Diamond

VG • H/SI2 • GIA 6412347475

Certificate GIA 6412347475

Diamond specifications and retailer prices

From HK$5,484 HKD
As of November 5, 2026
Save HK$5,664 HKD (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$19,111 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6412347475. Listed at 13 retailers as of November 4, 2026, with a 103% 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
H
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6412347475
Dimensions5.06 × 5.04 × 3.22 mm
L/W Ratio1.00
Top View
5.06 mm5.04 mm0.51 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6412347475
Side View
Table 57.0%Crown 35.5°Girdle: STK-THKPavilion 41.4°Culet: NoneDepth 63.8%

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 5
Current: HK$7,837 HKD|Low: HK$5,633 HKD|High: HK$11,297 HKD|Avg: HK$7,690 HKD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6HK$5,633 HKD
Retailer 4HK$5,962 HKD
Retailer 7HK$6,331 HKD
Retailer 2HK$7,210 HKD
Retailer 1HK$7,837 HKD
Retailer 3HK$8,551 HKD
Retailer 5HK$11,148 HKD

40 data points across 7 retailers

13 retailersHK$5,484 HKD to HK$11,148 HKD

B+
Cheapest Retailer
-
HK$5,484 HKD
B+
Retailer 2
-
HK$5,633 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$5,962 HKD
View
Retailer 4
-
HK$6,096 HKD
View
Price last confirmed 53 days ago
B+
Retailer 5
-
HK$6,182 HKD
View
B+
Retailer 6
-
HK$6,331 HKD
View
Retailer 7
-
HK$7,029 HKD
View
Price last confirmed 10 days ago
B
Retailer 8
-
HK$7,131 HKD
View
B+
Retailer 9
-
HK$7,210 HKD
View
B
Retailer 10
-
HK$7,837 HKD
View
B
Retailer 11
-
HK$8,551 HKD
View
B
Retailer 12
-
HK$11,148 HKD
View
Most Expensive
NZ Jewellers
5361b433-df0f-4f78-8a84-cfd578b6f97c · Oct 30
HK$19,111 HKD
$2,436 USD
View
Price under review
12 more retailers have this diamond
Prices start from HK$5,484 HKDSave up to HK$5,664 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 Round
HK$5,484 HKD