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Radiant|Natural|GIA

1.51ct K SI2 Radiant Natural Diamond

ID • K/SI2 • GIA 6243086864

Certificate GIA 6243086864

Diamond specifications and retailer prices

From HK$15,448 HKD
As of November 5, 2026
Save HK$28,371 HKD (65%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$43,819 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6243086864. Listed at 10 retailers as of November 5, 2026, with prices from HK$15,448 to HK$43,819, a HK$28,371 spread on the same certified stone. NZ Jewellers lists it at HK$43,819. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
K
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Pavilion angle58.69°
OriginNatural
Grading LabGIA
CertificateGIA 6243086864
Dimensions7.87 × 5.63 × 3.92 mm
L/W Ratio1.40
Key to symbols
Crystal, Feather, Needle
Top View
7.87 mm5.63 mm1.51 ctK / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6243086864
Side View
Table 64.0%CrownGirdle: THN-MEDPavilion 58.69°Culet: NoneDepth 69.7%

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 5
Current: HK$43,819 HKD|Low: HK$15,448 HKD|High: HK$46,609 HKD|Avg: HK$26,818 HKD|-6.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 5HK$15,448 HKD
Retailer 3HK$20,879 HKD
Retailer 6HK$20,957 HKD
Retailer 4HK$21,474 HKD
Retailer 2HK$21,764 HKD
Retailer 7HK$22,854 HKD
Retailer 9HK$25,182 HKD
Retailer 10HK$32,337 HKD
Retailer 8HK$37,204 HKD
NZ JewellersHK$43,819 HKD

26 data points across 10 retailers

10 retailersHK$15,448 HKD to HK$43,819 HKD

A
Cheapest Retailer
-
HK$15,448 HKD
A
Retailer 2
-
HK$20,879 HKD
View
A
Retailer 3
-
HK$20,957 HKD
View
A
Retailer 4
-
HK$21,474 HKD
View
A
Retailer 5
-
HK$21,764 HKD
View
A
Retailer 6
-
HK$22,854 HKD
View
A
Retailer 7
-
HK$25,182 HKD
View
B+
Retailer 8
-
HK$32,337 HKD
View
B+
Retailer 9
-
HK$37,204 HKD
View
Most Expensive
B
NZ Jewellers
c933f9ce-d291-4579-89d0-8e423e614e02 · Nov 5
HK$43,819 HKD
$5,591 USD
View
9 more retailers have this diamond
Prices start from HK$15,448 HKDSave up to HK$28,371 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
1.51ct Radiant
HK$15,448 HKD