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Radiant|Natural|GIA

1.50ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 2557139819

Certificate GIA 2557139819

Diamond specifications and retailer prices

From $4,837 CAD
HK$26,900 HKD
As of October 29, 2026
Save $5,685 CAD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,242 CAD at NZ Jewellers · As of September 29, 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 2557139819. Listed at 20 retailers as of October 29, 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2557139819
Dimensions7.30 × 5.60 × 3.92 mm
L/W Ratio1.30
Top View
7.30 mm5.60 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2557139819
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.9%

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 29
Current: $5,654 CAD|Low: $4,837 CAD|High: $11,285 CAD|Avg: $6,846 CAD|-6.1%
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 29, 2026
Retailer 4$4,837 CAD
Retailer 2$5,238 CAD
Retailer 5$5,495 CAD
Retailer 3$5,516 CAD
Retailer 11$5,646 CAD
Retailer 1$5,654 CAD
Retailer 13$5,839 CAD
Retailer 8$5,876 CAD
Retailer 16$6,074 CAD
Retailer 6$6,082 CAD
Retailer 12$6,301 CAD
Retailer 15$6,950 CAD
Retailer 10$7,077 CAD
Retailer 14$7,425 CAD
Retailer 18$7,931 CAD
Retailer 7$8,358 CAD
Retailer 17$10,275 CAD
Retailer 9$10,522 CAD

24 data points across 18 retailers

20 retailers$4,837 CAD to $10,522 CAD

A
Cheapest Retailer
-
$4,837 CAD
HK$26,900 HKD
A
Retailer 2
-
$5,238 CAD
$3,729 USD
View
A
Retailer 3
-
$5,495 CAD
$3,912 USD
View
Final sale: no returns
A
Retailer 4
-
$5,516 CAD
$3,927 USD
View
A
Retailer 5
-
$5,646 CAD
€3,828 EUR
View
A
Retailer 6
-
$5,654 CAD
$4,025 USD
View
A
Retailer 7
-
$5,839 CAD
$4,157 USD
View
A
Retailer 8
-
$5,866 CAD
A$6,425 AUD
View
A
Retailer 9
-
$5,876 CAD
$4,183 USD
View
A
Retailer 10
-
$6,074 CAD
£3,405 GBP
View
A
Retailer 11
-
$6,082 CAD
$4,330 USD
View
A
Retailer 12
-
$6,301 CAD
$4,486 USD
View
A
Retailer 13
-
$6,950 CAD
$4,948 USD
View
A
Retailer 14
-
$7,077 CAD
A$7,750 AUD
View
Price last confirmed 19 days ago
A
Retailer 15
-
$7,425 CAD
€5,034 EUR
View
B+
Retailer 16
-
$7,931 CAD
ZAR 91,215 ZAR
View
B+
Retailer 17
-
$8,358 CAD
$5,950 USD
View
B
Retailer 18
-
$10,275 CAD
$7,314 USD
View
B
Retailer 19
-
$10,522 CAD
£5,898 GBP
View
Most Expensive
B
NZ Jewellers
b734cccf-65a5-4d93-bb26-173a12bb62c9 · Sep 29
$12,242 CAD
$8,715 USD
View
Price last confirmed 29 days ago
19 more retailers have this diamond
Prices start from $4,837 CADSave up to $5,685 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
$4,837 CAD