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Radiant|Natural|GIA

1.50ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 6552150956

Certificate GIA 6552150956

Diamond specifications and retailer prices

From HK$22,470 HKD
As of November 6, 2026
Save HK$27,094 HKD (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$52,275 HKD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded J 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 6552150956. Listed at 20 retailers as of November 6, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552150956
Dimensions7.44 × 5.73 × 3.94 mm
L/W Ratio1.30
Top View
7.44 mm5.73 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552150956
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.7%

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 6
Current: HK$52,275 HKD|Low: HK$22,470 HKD|High: HK$53,365 HKD|Avg: HK$32,975 HKD|-2.0%
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 15HK$22,470 HKD
Retailer 10HK$23,771 HKD
Retailer 14HK$27,133 HKD
Retailer 4HK$27,509 HKD
Retailer 11HK$28,340 HKD
Retailer 6HK$30,009 HKD
Retailer 7HK$30,629 HKD
Retailer 9HK$30,840 HKD
Retailer 3HK$30,942 HKD
Retailer 2HK$31,694 HKD
Retailer 5HK$34,626 HKD
Retailer 12HK$34,688 HKD
Retailer 13HK$36,373 HKD
Retailer 8HK$49,564 HKD
NZ JewellersHK$52,275 HKD

28 data points across 15 retailers

20 retailersHK$22,470 HKD to HK$49,564 HKD

A
Cheapest Retailer
-
HK$22,470 HKD
A
Retailer 2
-
HK$23,771 HKD
View
A
Retailer 3
-
HK$27,133 HKD
View
A
Retailer 4
-
HK$27,509 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$28,317 HKD
View
B+
Retailer 6
-
HK$28,332 HKD
View
A
Retailer 7
-
HK$28,340 HKD
View
B+
Retailer 8
-
HK$29,939 HKD
View
Retailer 9
-
HK$30,009 HKD
View
Price last confirmed 20 days ago
Retailer 10
-
HK$30,629 HKD
View
Price last confirmed 22 days ago
Retailer 11
-
HK$30,629 HKD
View
Price last confirmed 22 days ago
B+
Retailer 12
-
HK$30,840 HKD
View
B+
Retailer 13
-
HK$30,942 HKD
View
B+
Retailer 14
-
HK$31,694 HKD
View
Retailer 15
-
HK$33,027 HKD
View
Price last confirmed 30 days ago
Retailer 16
-
HK$34,626 HKD
View
Price last confirmed 19 days ago
B+
Retailer 17
-
HK$34,688 HKD
View
B+
Retailer 18
-
HK$36,373 HKD
View
B
Retailer 19
-
HK$49,564 HKD
View
Most Expensive
NZ Jewellers
6ec3da5f-792f-46e1-8095-fd586e4f06d1 · Oct 17
HK$52,275 HKD
$6,670 USD
View
Price last confirmed 20 days ago
19 more retailers have this diamond
Prices start from HK$22,470 HKDSave up to HK$27,094 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
1.50ct Radiant
HK$22,470 HKD