Radiant|Natural|GIA

1.50ct J SI1 Radiant Natural Diamond

GD • J/SI1 • GIA 1408479256

Certificate GIA 1408479256

Diamond specifications and retailer prices

From $2,345 USD
As of November 4, 2026
Save $2,602 USD (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,203 USD 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 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
Color
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: $3,141 USD|Low: $2,345 USD|High: $5,021 USD|Avg: $3,293 USD|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 6$2,345 USD
Retailer 7$2,481 USD
Retailer 2$2,812 USD
Retailer 1$3,141 USD
Retailer 8$3,336 USD
Retailer 3$3,420 USD
Retailer 4$3,621 USD
Retailer 5$4,947 USD

38 data points across 8 retailers

23 retailers$2,345 USD to $4,947 USD

B+
Cheapest Retailer
-
$2,345 USD
B+
Retailer 2
-
$2,407 USD
View
B+
Retailer 3
-
$2,481 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,510 USD
View
B+
Retailer 5
-
$2,650 USD
View
Retailer 6
-
$2,688 USD
View
Price last confirmed 37 days ago
B+
Retailer 7
-
$2,724 USD
View
B+
Retailer 8
-
$2,730 USD
View
Retailer 9
-
$2,791 USD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
$2,812 USD
View
B+
Retailer 11
-
$2,893 USD
View
B+
Retailer 12
-
$3,070 USD
View
B+
Retailer 13
-
$3,070 USD
View
Retailer 14
-
$3,101 USD
View
Price last confirmed 67 days ago
Retailer 15
-
$3,101 USD
View
Price last confirmed 39 days ago
B+
Retailer 16
-
$3,141 USD
View
B+
Retailer 17
-
$3,170 USD
View
Retailer 18
-
$3,336 USD
View
Price last confirmed 34 days ago
B+
Retailer 19
-
$3,420 USD
View
Retailer 20
-
$3,444 USD
View
Price last confirmed 15 days ago
B+
Retailer 21
-
$3,621 USD
View
B
Retailer 22
-
$4,947 USD
View
Most Expensive
NZ Jewellers
5e19215d-1df8-4705-b2d1-ae11bffc1d6e · Sep 30
$6,203 USD
View
Price last confirmed 37 days ago
22 more retailers have this diamond
Prices start from $2,345 USDSave up to $2,602 USD

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
$2,345 USD