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Radiant|Natural|GIA

0.51ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 6227209592

Certificate GIA 6227209592

Diamond specifications and retailer prices

From HK$6,787 HKD
$865 USD
As of November 2, 2026
Save HK$4,482 HKD (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$11,268 HKD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded H 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 6227209592. Listed at 6 retailers as of November 2, 2026, with prices from HK$6,787 to HK$11,268, a HK$4,482 spread on the same certified stone. 77 Diamonds lists it at HK$11,268. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6227209592
Dimensions5.49 × 3.95 × 2.67 mm
L/W Ratio1.39
Top View
5.49 mm3.95 mm0.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6227209592
Side View
Table 70.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.4%

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$11,268 HKD|Low: HK$6,167 HKD|High: HK$11,286 HKD|Avg: HK$8,915 HKD|+2.3%
77 Diamonds
Retailer 2
November 2, 2026
Retailer 2HK$6,787 HKD
77 DiamondsHK$11,268 HKD

34 data points across 2 retailers

6 retailersHK$6,787 HKD to HK$11,268 HKD

B+
Cheapest Retailer
-
HK$6,787 HKD
$865 USD
Final sale: no returns
B
Retailer 2
-
HK$7,704 HKD
$982 USD
View
B
Retailer 3
-
HK$9,572 HKD
$1,220 USD
View
B
Retailer 4
-
HK$9,572 HKD
$1,220 USD
View
B
Retailer 5
-
HK$9,886 HKD
$1,260 USD
View
Most Expensive
B
77 Diamonds
RADMBRW26HHMT · Nov 2
HK$11,268 HKD
£1,131 GBP
View
5 more retailers have this diamond
Prices start from HK$6,787 HKDSave up to HK$4,482 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 Radiant
HK$6,787 HKD