Radiant|Natural|GIA

1.50ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 2546118660

Certificate GIA 2546118660

Diamond specifications and retailer prices

From $3,110 USD
As of November 6, 2026
Save $3,671 USD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,148 USD 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 2546118660. Listed at 20 retailers as of November 6, 2026, with a 118% 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
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2546118660
Dimensions7.50 × 5.78 × 3.93 mm
L/W Ratio1.30
Top View
7.50 mm5.78 mm1.50 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546118660
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $7,148 USD|Low: $3,097 USD|High: $7,148 USD|Avg: $4,467 USD
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
Retailer 16
November 7, 2026
Retailer 3$3,110 USD
Retailer 11$3,277 USD
Retailer 15$3,743 USD
Retailer 5$3,762 USD
Retailer 9$3,890 USD
Retailer 12$3,919 USD
Retailer 7$4,103 USD
Retailer 10$4,129 USD
Retailer 8$4,181 USD
Retailer 4$4,224 USD
Retailer 16$4,240 USD
Retailer 13$4,586 USD
Retailer 6$4,734 USD
Retailer 14$4,976 USD
Retailer 2$6,781 USD
NZ Jewellers$7,148 USD

27 data points across 16 retailers

20 retailers$3,110 USD to $6,781 USD

A
Cheapest Retailer
-
$3,110 USD
A
Retailer 2
-
$3,277 USD
View
A
Retailer 3
-
$3,743 USD
View
A
Retailer 4
-
$3,762 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,890 USD
View
B+
Retailer 6
-
$3,905 USD
View
B+
Retailer 7
-
$3,919 USD
View
Retailer 8
-
$4,103 USD
View
Price last confirmed 20 days ago
B+
Retailer 9
-
$4,119 USD
View
B+
Retailer 10
-
$4,129 USD
View
Retailer 11
-
$4,181 USD
View
Price last confirmed 22 days ago
Retailer 12
-
$4,181 USD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$4,224 USD
View
B+
Retailer 14
-
$4,240 USD
View
Retailer 15
-
$4,511 USD
View
Price last confirmed 34 days ago
B+
Retailer 16
-
$4,586 USD
View
Retailer 17
-
$4,734 USD
View
Price last confirmed 19 days ago
B+
Retailer 18
-
$4,976 USD
View
B
Retailer 19
-
$6,781 USD
View
Most Expensive
NZ Jewellers
0f92685b-5a49-416b-b35c-1f1e2a3ce145 · Oct 17
$7,148 USD
View
Price last confirmed 20 days ago
19 more retailers have this diamond
Prices start from $3,110 USDSave up to $3,671 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.

A
1.50ct Radiant
$3,110 USD