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Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

ID • I/SI1 • GIA 7558456271

Certificate GIA 7558456271

Diamond specifications and retailer prices

From $5,646 CAD
HK$31,400 HKD
As of October 28, 2026
Save $6,489 CAD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $12,725 CAD 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 I 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 7558456271. Listed at 21 retailers as of October 25, 2026, with a 115% 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
I
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558456271
Dimensions7.81 × 5.83 × 3.94 mm
L/W Ratio1.34
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Crystal, Indented Natural, Needle, Natural
Top View
7.81 mm5.83 mm1.50 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558456271
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.6%

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: Oct 28
Current: $12,725 CAD|Low: $5,646 CAD|High: $12,725 CAD|Avg: $8,073 CAD
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
Retailer 17
Retailer 18
Retailer 19
October 27, 2026
Retailer 5$5,646 CAD
Retailer 13$6,076 CAD
Retailer 18$6,711 CAD
Retailer 16$6,713 CAD
Retailer 11$6,977 CAD
Retailer 4$7,022 CAD
Retailer 7$7,255 CAD
Retailer 12$7,355 CAD
Retailer 3$7,608 CAD
Retailer 9$7,608 CAD
Retailer 17$7,608 CAD
Retailer 8$7,613 CAD
Retailer 10$7,713 CAD
Retailer 6$7,824 CAD
Retailer 15$8,572 CAD
Retailer 19$8,779 CAD
Retailer 2$9,265 CAD
Retailer 14$12,135 CAD
NZ Jewellers$12,725 CAD

36 data points across 19 retailers

21 retailers$5,646 CAD to $12,135 CAD

A
Cheapest Retailer
-
$5,646 CAD
HK$31,400 HKD
A
Retailer 2
-
$6,076 CAD
₹411,920 INR
View
A
Retailer 3
-
$6,711 CAD
SGD 6,456 SGD
View
A
Retailer 4
-
$6,713 CAD
$4,779 USD
View
A
Retailer 5
-
$6,977 CAD
$4,967 USD
View
A
Retailer 6
-
$6,981 CAD
$4,970 USD
View
A
Retailer 7
-
$7,255 CAD
SGD 6,979 SGD
View
A
Retailer 8
-
$7,355 CAD
£4,123 GBP
View
B+
Retailer 9
-
$7,567 CAD
A$8,288 AUD
View
B+
Retailer 10
-
$7,608 CAD
$5,416 USD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
$7,608 CAD
$5,416 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$7,608 CAD
$5,416 USD
View
Price last confirmed 13 days ago
B+
Retailer 13
-
$7,613 CAD
$5,420 USD
View
B+
Retailer 14
-
$7,713 CAD
A$8,448 AUD
View
Price last confirmed 19 days ago
B+
Retailer 15
-
$7,824 CAD
$5,570 USD
View
B+
Retailer 16
-
$8,572 CAD
€5,812 EUR
View
B+
Retailer 17
-
$8,779 CAD
$6,250 USD
View
Price last confirmed 10 days ago
B+
Retailer 18
-
$9,126 CAD
$6,497 USD
View
Price last confirmed 58 days ago
B+
Retailer 19
-
$9,265 CAD
ZAR 106,555 ZAR
View
B
Retailer 20
-
$12,135 CAD
£6,802 GBP
View
Most Expensive
B
NZ Jewellers
04619716-9181-434f-a451-93f06eba5630 · Oct 17
$12,725 CAD
$9,059 USD
View
Price last confirmed 11 days ago
20 more retailers have this diamond
Prices start from $5,646 CADSave up to $6,489 CAD

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
$5,646 CAD