Radiant|Natural|GIA

1.50ct I SI2 Radiant Natural Diamond

ID • I/SI2 • GIA 5241008507

Certificate GIA 5241008507

Diamond specifications and retailer prices

From $4,467 USD
As of November 6, 2026
Save $5,227 USD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,694 USD at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5241008507. Listed at 17 retailers as of November 5, 2026, with prices from $4,467 to $9,694, a $5,227 spread on the same certified stone. NZ Jewellers lists it at $9,694. 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
I
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.83°
Pavilion angle53.91°
OriginNatural
Grading LabGIA
CertificateGIA 5241008507
Dimensions7.62 × 5.91 × 4.13 mm
L/W Ratio1.29
Culet sizeNone
Key to symbols
Feather
Top View
7.62 mm5.91 mm1.50 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241008507
Side View
Table 67.0%Crown 36.83°Girdle: THN-STKPavilion 53.91°Culet: NoneDepth 69.8%

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: $5,598 USD|Low: $4,467 USD|High: $8,642 USD|Avg: $5,934 USD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 6$4,467 USD
Retailer 2$4,506 USD
Retailer 7$5,350 USD
Retailer 1$5,598 USD
Retailer 3$5,623 USD
Retailer 4$6,297 USD
Retailer 5$8,516 USD

29 data points across 7 retailers

17 retailers$4,467 USD to $9,694 USD

A
Cheapest Retailer
-
$4,467 USD
A
Retailer 2
-
$4,506 USD
View
A
Retailer 3
-
$4,904 USD
View
A
Retailer 4
-
$5,055 USD
View
Retailer 5
-
$5,089 USD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
$5,350 USD
View
Final sale: no returns
B+
Retailer 7
-
$5,598 USD
View
B+
Retailer 8
-
$5,623 USD
View
B+
Retailer 9
-
$5,750 USD
View
B+
Retailer 10
-
$5,796 USD
View
Retailer 11
-
$5,796 USD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$5,796 USD
View
B+
Retailer 13
-
$5,951 USD
View
B+
Retailer 14
-
$6,297 USD
View
B+
Retailer 15
-
$6,687 USD
View
B
Retailer 16
-
$8,516 USD
View
Most Expensive
B
NZ Jewellers
00fd1fdc-4ea6-46a2-8f59-2f80fa684701 · Nov 5
$9,694 USD
View
16 more retailers have this diamond
Prices start from $4,467 USDSave up to $5,227 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
$4,467 USD