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Radiant|Natural|GIA

1.50ct J SI1 Radiant Natural Diamond

GD • J/SI1 • GIA 2457222138

Certificate GIA 2457222138

Diamond specifications and retailer prices

From HK$24,845 HKD
As of November 4, 2026
Save HK$27,509 HKD (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$55,371 HKD at NZ Jewellers · As of September 30, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2457222138. Listed at 23 retailers as of November 4, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

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

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2457222138
Dimensions6.87 × 5.71 × 4.00 mm
L/W Ratio1.20
Top View
6.87 mm5.71 mm1.50 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2457222138
Side View
Table 73.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$39,469 HKD|Low: HK$22,148 HKD|High: HK$53,788 HKD|Avg: HK$33,966 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 10HK$24,845 HKD
Retailer 3HK$25,566 HKD
Retailer 11HK$26,577 HKD
Retailer 4HK$30,331 HKD
Retailer 5HK$30,801 HKD
Retailer 7HK$32,188 HKD
Retailer 2HK$34,069 HKD
Retailer 8HK$35,417 HKD
Retailer 9HK$38,787 HKD
Retailer 1HK$39,469 HKD
Retailer 6HK$52,354 HKD

46 data points across 11 retailers

23 retailersHK$24,845 HKD to HK$52,354 HKD

B+
Cheapest Retailer
-
HK$24,845 HKD
B+
Retailer 2
-
HK$25,566 HKD
View
B+
Retailer 3
-
HK$26,577 HKD
View
Final sale: no returns
B+
Retailer 4
-
HK$27,627 HKD
View
B+
Retailer 5
-
HK$28,450 HKD
View
Retailer 6
-
HK$28,795 HKD
View
Price last confirmed 37 days ago
B+
Retailer 7
-
HK$28,795 HKD
View
Retailer 8
-
HK$29,900 HKD
View
Price last confirmed 38 days ago
Retailer 9
-
HK$30,331 HKD
View
B+
Retailer 10
-
HK$30,519 HKD
View
Retailer 11
-
HK$30,801 HKD
View
B+
Retailer 12
-
HK$32,188 HKD
View
B+
Retailer 13
-
HK$32,525 HKD
View
B+
Retailer 14
-
HK$32,525 HKD
View
Retailer 15
-
HK$33,223 HKD
View
Price last confirmed 39 days ago
B
Retailer 16
-
HK$33,622 HKD
View
Retailer 17
-
HK$34,069 HKD
View
Price last confirmed 34 days ago
B
Retailer 18
-
HK$35,417 HKD
View
Retailer 19
-
HK$35,974 HKD
View
Price last confirmed 15 days ago
B
Retailer 20
-
HK$38,787 HKD
View
Retailer 21
-
HK$39,469 HKD
View
B
Retailer 22
-
HK$52,354 HKD
View
Most Expensive
NZ Jewellers
54a61131-ff84-4119-8033-69365cc1f830 · Sep 30
HK$55,371 HKD
$7,065 USD
View
Price last confirmed 37 days ago
22 more retailers have this diamond
Prices start from HK$24,845 HKDSave up to HK$27,509 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.

B+
1.50ct Radiant
HK$24,845 HKD