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Radiant|Natural|GIA

0.51ct G SI1 Radiant Natural Diamond

GD • G/SI1 • GIA 2215721678

Certificate GIA 2215721678

Diamond specifications and retailer prices

From HK$7,837 HKD
As of November 5, 2026
Save HK$8,656 HKD (52%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$16,493 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2215721678. Listed at 9 retailers as of November 4, 2026, with prices from HK$7,837 to HK$16,493, a HK$8,656 spread on the same certified stone. MOH London lists it at HK$16,493. 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2215721678
Dimensions5.20 × 4.15 × 2.59 mm
L/W Ratio1.25
Culet sizeNone
Top View
5.20 mm4.15 mm0.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2215721678
Side View
Table 70.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.3%

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$16,493 HKD|Low: HK$7,877 HKD|High: HK$16,742 HKD|Avg: HK$12,103 HKD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 6HK$7,877 HKD
Retailer 2HK$10,189 HKD
Retailer 5HK$11,309 HKD
Retailer 7HK$11,803 HKD
Retailer 3HK$12,563 HKD
Retailer 4HK$13,935 HKD
MOH LondonHK$16,493 HKD

45 data points across 7 retailers

9 retailersHK$7,837 HKD to HK$16,493 HKD

B+
Cheapest Retailer
-
HK$7,837 HKD
B+
Retailer 2
-
HK$7,877 HKD
View
B
Retailer 3
-
HK$8,927 HKD
View
B
Retailer 4
-
HK$10,189 HKD
View
B
Retailer 5
-
HK$11,309 HKD
View
Retailer 6
-
HK$11,803 HKD
View
Price last confirmed 34 days ago
B
Retailer 7
-
HK$12,563 HKD
View
B
Retailer 8
-
HK$13,935 HKD
View
Most Expensive
B
MOH London
C7EDCC138 · Nov 4
HK$16,493 HKD
£1,657 GBP
View
8 more retailers have this diamond
Prices start from HK$7,837 HKDSave up to HK$8,656 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$7,837 HKD