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Radiant|Natural|GIA

0.51ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 1379698927

Certificate GIA 1379698927

Diamond specifications and retailer prices

From HK$4,107 HKD
As of November 6, 2026
Save HK$9,867 HKD (71%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$13,974 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1379698927. Listed at 15 retailers as of November 5, 2026, with prices from HK$4,107 to HK$13,974, a HK$9,867 spread on the same certified stone. NZ Jewellers lists it at HK$13,974. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1379698927
Dimensions5.12 × 4.07 × 2.59 mm
L/W Ratio1.26
Key to symbols
Needle, Feather, Crystal
Top View
5.12 mm4.07 mm0.51 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1379698927
Side View
Table 71.0%CrownGirdlePavilionCulet: NoneDepth 63.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$13,974 HKD|Low: HK$3,770 HKD|High: HK$13,974 HKD|Avg: HK$5,969 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 7, 2026
Retailer 7HK$4,091 HKD
Retailer 4HK$4,107 HKD
Retailer 13HK$4,412 HKD
Retailer 16HK$4,459 HKD
Retailer 14HK$4,796 HKD
Retailer 15HK$4,796 HKD
Retailer 8HK$4,969 HKD
Retailer 6HK$5,016 HKD
Retailer 3HK$5,141 HKD
Retailer 9HK$5,408 HKD
Retailer 10HK$5,439 HKD
Retailer 5HK$5,996 HKD
Retailer 11HK$6,583 HKD
Retailer 12HK$6,873 HKD
Retailer 2HK$10,236 HKD
NZ JewellersHK$13,974 HKD

31 data points across 16 retailers

15 retailersHK$4,107 HKD to HK$13,974 HKD

B+
Cheapest Retailer
-
HK$4,107 HKD
Final sale: no returns
B+
Retailer 2
-
HK$4,412 HKD
View
A
Retailer 3
-
HK$4,459 HKD
View
B+
Retailer 4
-
HK$4,796 HKD
View
Retailer 5
-
HK$4,796 HKD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
HK$5,016 HKD
View
B+
Retailer 7
-
HK$5,141 HKD
View
B+
Retailer 8
-
HK$5,408 HKD
View
B+
Retailer 9
-
HK$5,439 HKD
View
B+
Retailer 10
-
HK$5,486 HKD
View
B+
Retailer 11
-
HK$5,996 HKD
View
B
Retailer 12
-
HK$6,583 HKD
View
B
Retailer 13
-
HK$6,873 HKD
View
B
Retailer 14
-
HK$10,236 HKD
View
Most Expensive
C
NZ Jewellers
59126b56-8549-405a-82f9-ea03ad1831b6 · Nov 5
HK$13,974 HKD
$1,783 USD
View
14 more retailers have this diamond
Prices start from HK$4,107 HKDSave up to HK$9,867 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.

A
0.51ct Radiant
HK$4,107 HKD