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Radiant|Natural|GIA

1.51ct H SI1 Radiant Natural Diamond

ID • H/SI1 • GIA 5563118999

Certificate GIA 5563118999

Diamond specifications and retailer prices

From HK$25,526 HKD
As of November 1, 2026
Save HK$22,674 HKD (47%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$48,200 HKD at NZ Jewellers · As of November 3, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5563118999. Listed at 9 retailers as of November 1, 2026, with prices from HK$25,526 to HK$48,200, a HK$22,674 spread on the same certified stone. NZ Jewellers lists it at HK$48,200. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle51.21°
Pavilion angle36.78°
OriginNatural
Grading LabGIA
CertificateGIA 5563118999
Dimensions7.52 × 5.79 × 3.92 mm
L/W Ratio1.30
Girdle conditionThick
Key to symbols
Crystal, Cavity, Feather, Needle, Natural
Top View
7.52 mm5.79 mm1.51 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5563118999
Side View
Table 71.0%Crown 51.21°Girdle: MED-POLPavilion 36.78°Culet: NoneDepth 67.7%

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 1
Current: HK$48,200 HKD|Low: HK$25,244 HKD|High: HK$48,796 HKD|Avg: HK$33,156 HKD|-1.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 4, 2026
Retailer 5HK$25,526 HKD
Retailer 3HK$26,059 HKD
Retailer 2HK$27,353 HKD
Retailer 7HK$27,666 HKD
Retailer 9HK$28,293 HKD
Retailer 6HK$28,732 HKD
Retailer 8HK$29,625 HKD
Retailer 4HK$46,256 HKD
NZ JewellersHK$48,200 HKD

35 data points across 9 retailers

9 retailersHK$25,526 HKD to HK$48,200 HKD

A
Cheapest Retailer
-
HK$25,526 HKD
A
Retailer 2
-
HK$26,059 HKD
View
A
Retailer 3
-
HK$27,353 HKD
View
A
Retailer 4
-
HK$27,666 HKD
View
A
Retailer 5
-
HK$28,293 HKD
View
A
Retailer 6
-
HK$28,732 HKD
View
Retailer 7
-
HK$29,625 HKD
View
Price last confirmed 30 days ago
B+
Retailer 8
-
HK$46,256 HKD
View
Most Expensive
B+
NZ Jewellers
f1ce2716-69c6-4751-816e-3e008bf35d4b · Nov 3
HK$48,200 HKD
$6,150 USD
View
8 more retailers have this diamond
Prices start from HK$25,526 HKDSave up to HK$22,674 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$25,526 HKD