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Radiant|Natural|GIA

0.51ct D SI2 Radiant Natural Diamond

D/SI2

Diamond specifications and retailer prices

From HK$5,390 HKD
$687 USD
As of November 1, 2026
1 retailer carries this diamond
Only listing: HK$5,390 HKD at Diamonds Direct
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Diamonds Direct

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included) and certified by GIA. Listed at a single retailer as of November 1, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
D
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
Dimensions5.15 × 4.08 × 2.77 mm
L/W Ratio1.26
Top View
5.15 mm4.08 mm0.51 ctD / SI2
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCuletDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: HK$5,390 HKD|Low: HK$5,390 HKD|High: HK$15,366 HKD|Avg: HK$10,402 HKD|-5.1%
Diamonds Direct
Retailer 2
November 1, 2026
Diamonds DirectHK$5,390 HKD
Retailer 2HK$15,366 HKD

12 data points across 2 retailers

1 retailer

B+
Diamonds Direct
925307 · Nov 1
HK$5,390 HKD
$687 USD
View

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$5,390 HKD