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Radiant|Natural|GIA

0.51ct F SI1 Radiant Natural Diamond

GD • F/SI1 • GIA 2546189147

Certificate GIA 2546189147

Diamond specifications and retailer prices

From HK$3,492 HKD
$445 USD
As of November 2, 2026
Save HK$306 HKD (8%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$3,797 HKD at Michael Trio · As of November 2, 2026
View at Michael Trio

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2546189147. Listed at 2 retailers as of November 2, 2026, with a relatively tight 9% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2546189147
Dimensions5.29 × 4.08 × 2.67 mm
L/W Ratio1.30
Top View
5.29 mm4.08 mm0.51 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546189147
Side View
Table 64.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$3,797 HKD|Low: HK$3,091 HKD|High: HK$6,222 HKD|Avg: HK$4,512 HKD|-6.3%
Michael Trio
Retailer 2
Retailer 3
October 17, 2026
Retailer 2HK$3,492 HKD
Michael TrioHK$3,797 HKD
Retailer 3HK$6,222 HKD

5 data points across 3 retailers

2 retailersHK$3,492 HKD to HK$3,797 HKD

B+
Cheapest Retailer
-
HK$3,492 HKD
$445 USD
Final sale: no returns
Most Expensive
B+
Michael Trio
3564387130 · Nov 2
HK$3,797 HKD
SGD 654 SGD
View
1 more retailer has this diamond
Prices start from HK$3,492 HKDSave up to HK$306 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$3,492 HKD