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Radiant|Natural|GIA

0.51ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 7456368502

Certificate GIA 7456368502

Diamond specifications and retailer prices

From HK$7,696 HKD
As of November 5, 2026
Save HK$8,182 HKD (52%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$21,184 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7456368502. Listed at 17 retailers as of November 4, 2026, with a 106% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7456368502
Dimensions5.99 × 4.39 × 2.30 mm
L/W Ratio1.36
Top View
5.99 mm4.39 mm0.51 ctE / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7456368502
Side View
Table 64.0%CrownGirdle: Extremely ThinPavilionCulet: NoneDepth 52.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
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$21,184 HKD|Low: HK$7,602 HKD|High: HK$21,184 HKD|Avg: HK$10,903 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
November 7, 2026
Retailer 4HK$7,602 HKD
Retailer 5HK$7,696 HKD
Retailer 6HK$7,790 HKD
Retailer 14HK$7,869 HKD
Retailer 15HK$7,869 HKD
Retailer 11HK$8,174 HKD
Retailer 12HK$9,076 HKD
Retailer 2HK$9,797 HKD
Retailer 8HK$10,604 HKD
Retailer 3HK$10,878 HKD
Retailer 7HK$11,223 HKD
Retailer 9HK$12,093 HKD
Retailer 10HK$13,402 HKD
Retailer 13HK$15,879 HKD
NZ JewellersHK$21,184 HKD

31 data points across 15 retailers

17 retailersHK$7,696 HKD to HK$15,879 HKD

Retailer 1
-
HK$7,602 HKD
Price last confirmed 10 days ago
B
Retailer 2
-
HK$7,696 HKD
View
B
Retailer 3
-
HK$7,790 HKD
View
Retailer 4
-
HK$7,869 HKD
View
Price last confirmed 9 days ago
B
Retailer 5
-
HK$7,869 HKD
View
B
Retailer 6
-
HK$8,174 HKD
View
B
Retailer 7
-
HK$8,621 HKD
View
B
Retailer 8
-
HK$8,707 HKD
View
B
Retailer 9
-
HK$9,076 HKD
View
B
Retailer 10
-
HK$9,797 HKD
View
B
Retailer 11
-
HK$10,604 HKD
View
B
Retailer 12
-
HK$10,878 HKD
View
Retailer 13
-
HK$11,223 HKD
View
Price last confirmed 39 days ago
B
Retailer 14
-
HK$12,093 HKD
View
B
Retailer 15
-
HK$13,402 HKD
View
B
Retailer 16
-
HK$15,879 HKD
View
Most Expensive
NZ Jewellers
dd414ce9-e5fe-4936-a423-9b08bc52fde9 · Nov 5
HK$21,184 HKD
$2,703 USD
View
Price under review
16 more retailers have this diamond
Prices start from HK$7,696 HKDSave up to HK$8,182 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$7,696 HKD