Radiant|Natural|GIA

1.50ct J SI1 Radiant Natural Diamond

GD • J/SI1 • GIA 1408479256

Certificate GIA 1408479256

Diamond specifications and retailer prices

From HK$18,379 HKD
As of November 4, 2026
Save HK$20,393 HKD (53%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: HK$48,615 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 1408479256. Listed at 26 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
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1408479256
Dimensions7.13 × 5.42 × 3.91 mm
L/W Ratio1.32
Culet sizeNone
Top View
7.13 mm5.42 mm1.50 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1408479256
Side View
Table 58.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 72.2%

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$30,103 HKD|Low: HK$18,379 HKD|High: HK$39,352 HKD|Avg: HK$25,788 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 11HK$18,379 HKD
Retailer 2HK$19,445 HKD
Retailer 4HK$22,180 HKD
Retailer 5HK$22,235 HKD
Retailer 6HK$22,493 HKD
Retailer 7HK$24,617 HKD
Retailer 3HK$26,146 HKD
Retailer 8HK$26,804 HKD
Retailer 9HK$28,379 HKD
Retailer 1HK$30,103 HKD
Retailer 10HK$38,772 HKD

36 data points across 11 retailers

26 retailersHK$18,379 HKD to HK$38,772 HKD

B+
Cheapest Retailer
-
HK$18,379 HKD
B+
Retailer 2
-
HK$18,865 HKD
View
B+
Retailer 3
-
HK$19,445 HKD
View
Final sale: no returns
B+
Retailer 4
-
HK$19,672 HKD
View
B+
Retailer 5
-
HK$20,769 HKD
View
Retailer 6
-
HK$21,067 HKD
View
Price last confirmed 37 days ago
B+
Retailer 7
-
HK$21,349 HKD
View
B+
Retailer 8
-
HK$21,396 HKD
View
Retailer 9
-
HK$21,874 HKD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
HK$22,180 HKD
View
Retailer 11
-
HK$22,235 HKD
View
Retailer 12
-
HK$22,493 HKD
View
B+
Retailer 13
-
HK$22,674 HKD
View
B+
Retailer 14
-
HK$24,061 HKD
View
B+
Retailer 15
-
HK$24,061 HKD
View
Retailer 16
-
HK$24,304 HKD
View
Price last confirmed 67 days ago
Retailer 17
-
HK$24,304 HKD
View
Price last confirmed 39 days ago
B+
Retailer 18
-
HK$24,617 HKD
View
B+
Retailer 19
-
HK$24,845 HKD
View
Retailer 20
-
HK$26,146 HKD
View
Price last confirmed 34 days ago
B+
Retailer 21
-
HK$26,804 HKD
View
Retailer 22
-
HK$26,992 HKD
View
Price last confirmed 15 days ago
B+
Retailer 23
-
HK$28,379 HKD
View
Retailer 24
-
HK$30,103 HKD
View
B
Retailer 25
-
HK$38,772 HKD
View
Most Expensive
NZ Jewellers
5e19215d-1df8-4705-b2d1-ae11bffc1d6e · Sep 30
HK$48,615 HKD
$6,203 USD
View
Price last confirmed 37 days ago
25 more retailers have this diamond
Prices start from HK$18,379 HKDSave up to HK$20,393 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$18,379 HKD