Radiant|Natural|GIA

1.50ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 1545488189

Certificate GIA 1545488189

Diamond specifications and retailer prices

From $5,650 CAD
HK$31,600 HKD
As of October 30, 2026
Save $6,401 CAD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $13,088 CAD at NZ Jewellers · As of September 25, 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 H 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 1545488189. Listed at 21 retailers as of October 29, 2026, with a 113% 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle34.1°
OriginNatural
Grading LabGIA
CertificateGIA 1545488189
Dimensions7.30 × 5.60 × 3.90 mm
L/W Ratio1.30
Girdle conditionPolished
Top View
7.30 mm5.60 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545488189
Side View
Table 70.0%CrownGirdle: ThickPavilion 34.1°Culet: NoneDepth 69.7%

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 30
Current: $7,283 CAD|Low: $5,650 CAD|High: $12,452 CAD|Avg: $7,611 CAD|-3.3%
Retailer 1
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
October 31, 2026
Retailer 3$5,650 CAD
Retailer 15$5,733 CAD
Retailer 18$6,090 CAD
Retailer 4$6,293 CAD
Retailer 2$6,393 CAD
Retailer 5$6,426 CAD
Retailer 12$6,477 CAD
Retailer 14$6,740 CAD
Retailer 8$6,796 CAD
Retailer 6$6,817 CAD
Retailer 13$7,216 CAD
Retailer 1$7,283 CAD
Retailer 10$7,737 CAD
Retailer 11$8,517 CAD
Retailer 17$9,084 CAD
Retailer 7$9,150 CAD
Retailer 16$11,861 CAD
Retailer 9$12,051 CAD

26 data points across 18 retailers

21 retailers$5,650 CAD to $12,051 CAD

A
Cheapest Retailer
-
$5,650 CAD
HK$31,600 HKD
A
Retailer 2
-
$5,733 CAD
$4,104 USD
View
A
Retailer 3
-
$6,090 CAD
$4,360 USD
View
A
Retailer 4
-
$6,293 CAD
$4,505 USD
View
Final sale: no returns
A
Retailer 5
-
$6,393 CAD
$4,576 USD
View
A
Retailer 6
-
$6,426 CAD
$4,600 USD
View
A
Retailer 7
-
$6,477 CAD
€4,416 EUR
View
A
Retailer 8
-
$6,740 CAD
$4,825 USD
View
A
Retailer 9
-
$6,745 CAD
A$7,428 AUD
View
A
Retailer 10
-
$6,796 CAD
$4,865 USD
View
A
Retailer 11
-
$6,817 CAD
$4,880 USD
View
A
Retailer 12
-
$7,216 CAD
$5,166 USD
View
A
Retailer 13
-
$7,283 CAD
£4,105 GBP
View
Retailer 14
-
$7,737 CAD
A$8,521 AUD
View
Price last confirmed 22 days ago
B+
Retailer 15
-
$7,771 CAD
A$8,558 AUD
View
B+
Retailer 16
-
$8,517 CAD
€5,807 EUR
View
Retailer 17
-
$9,084 CAD
ZAR 105,054 ZAR
View
Price last confirmed 9 days ago
B+
Retailer 18
-
$9,150 CAD
$6,550 USD
View
Retailer 19
-
$11,861 CAD
$8,491 USD
View
Price last confirmed 8 days ago
B
Retailer 20
-
$12,051 CAD
£6,793 GBP
View
Most Expensive
NZ Jewellers
c6a6288c-2c3d-4345-81ca-3b631b6af0d9 · Sep 25
$13,088 CAD
$9,369 USD
View
Price last confirmed 36 days ago
20 more retailers have this diamond
Prices start from $5,650 CADSave up to $6,401 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
$5,650 CAD