CaratHunter
Plans
Radiant|Natural|GIA

1.51ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 1528795927

Certificate GIA 1528795927

Diamond specifications and retailer prices

From HK$30,038 HKD
£3,014 GBP
As of November 2, 2026
Save HK$25,112 HKD (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$55,150 HKD at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1528795927. Listed at 8 retailers as of October 30, 2026, with prices from HK$30,038 to HK$55,150, a HK$25,112 spread on the same certified stone. NZ Jewellers lists it at HK$55,150. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.67°
Pavilion angle31.5°
OriginNatural
Grading LabGIA
CertificateGIA 1528795927
Dimensions7.05 × 5.64 × 3.99 mm
L/W Ratio1.25
Top View
7.05 mm5.64 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1528795927
Side View
Table 65.0%Crown 48.67°Girdle: STK-THKPavilion 31.5°Culet: NoneDepth 70.6%

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 2
Current: HK$55,150 HKD|Low: HK$28,772 HKD|High: HK$55,166 HKD|Avg: HK$36,519 HKD|-0.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10HK$28,772 HKD
Retailer 2HK$30,038 HKD
Retailer 8HK$30,168 HKD
Retailer 5HK$31,659 HKD
Retailer 7HK$31,659 HKD
Retailer 6HK$32,781 HKD
Retailer 9HK$33,953 HKD
Retailer 3HK$34,155 HKD
Retailer 11HK$34,264 HKD
Retailer 4HK$52,942 HKD
NZ JewellersHK$55,150 HKD

34 data points across 11 retailers

8 retailersHK$30,038 HKD to HK$55,150 HKD

A
Cheapest Retailer
-
HK$30,038 HKD
£3,014 GBP
A
Retailer 2
-
HK$30,168 HKD
$3,845 USD
View
A
Retailer 3
-
HK$31,659 HKD
$4,035 USD
View
A
Retailer 4
-
HK$31,659 HKD
$4,035 USD
View
A
Retailer 5
-
HK$32,781 HKD
$4,178 USD
View
Retailer 6
-
HK$33,953 HKD
A$6,658 AUD
View
Price last confirmed 29 days ago
B+
Retailer 7
-
HK$52,942 HKD
£5,313 GBP
View
Most Expensive
B
NZ Jewellers
4b7c664d-ceb4-4377-accf-6acf1e770705 · Oct 30
HK$55,150 HKD
$7,029 USD
View
7 more retailers have this diamond
Prices start from HK$30,038 HKDSave up to HK$25,112 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$30,038 HKD