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Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

ID • I/SI2 • GIA 6512748750

Certificate GIA 6512748750

Diamond specifications and retailer prices

From HK$32,807 HKD
As of November 2, 2026
Save HK$25,793 HKD (44%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$58,600 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6512748750. Listed at 6 retailers as of November 2, 2026, with prices from HK$32,807 to HK$58,600, a HK$25,793 spread on the same certified stone. NZ Jewellers lists it at HK$58,600. 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
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.29°
Pavilion angle30.13°
OriginNatural
Grading LabGIA
CertificateGIA 6512748750
Dimensions7.85 × 5.68 × 3.74 mm
L/W Ratio1.38
Top View
7.85 mm5.68 mm1.51 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512748750
Side View
Table 66.0%Crown 43.29°Girdle: Slightly ThickPavilion 30.13°Culet: NoneDepth 65.8%

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 2
Current: HK$58,600 HKD|Low: HK$32,800 HKD|High: HK$59,415 HKD|Avg: HK$40,370 HKD|-1.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 3HK$32,807 HKD
Retailer 2HK$33,638 HKD
Retailer 5HK$33,638 HKD
Retailer 6HK$34,735 HKD
Retailer 9HK$35,911 HKD
Retailer 7HK$37,314 HKD
Retailer 8HK$38,121 HKD
Retailer 4HK$53,576 HKD
NZ JewellersHK$58,600 HKD

29 data points across 9 retailers

6 retailersHK$32,807 HKD to HK$58,600 HKD

A
Cheapest Retailer
-
HK$32,807 HKD
A
Retailer 2
-
HK$33,638 HKD
View
A
Retailer 3
-
HK$33,638 HKD
View
A
Retailer 4
-
HK$34,735 HKD
View
B+
Retailer 5
-
HK$53,576 HKD
View
Most Expensive
B
NZ Jewellers
d94f7b69-be2e-462a-b5bf-7ce1ebfe390a · Nov 3
HK$58,600 HKD
$7,477 USD
View
5 more retailers have this diamond
Prices start from HK$32,807 HKDSave up to HK$25,793 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$32,807 HKD