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Round|Natural|GIA

1.51ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2245026927

Certificate GIA 2245026927

Diamond specifications and retailer prices

From $4,452 CAD
HK$24,900 HKD
As of October 30, 2026
Save $5,335 CAD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,995 CAD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2245026927. Listed at 16 retailers as of October 29, 2026, with a 120% 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

1.51
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2245026927
Dimensions7.27 × 7.31 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.27 mm7.31 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2245026927
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
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: Oct 30
Current: $6,760 CAD|Low: $4,327 CAD|High: $10,172 CAD|Avg: $6,262 CAD|-0.2%
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
October 30, 2026
Retailer 12$4,452 CAD
Retailer 9$4,552 CAD
Retailer 13$4,729 CAD
Retailer 10$4,756 CAD
Retailer 2$5,111 CAD
Retailer 3$5,381 CAD
Retailer 4$5,499 CAD
Retailer 7$5,671 CAD
Retailer 6$5,955 CAD
Retailer 5$6,146 CAD
Retailer 1$6,760 CAD
Retailer 11$7,781 CAD
Retailer 14$9,133 CAD
Retailer 8$9,788 CAD

35 data points across 14 retailers

16 retailers$4,452 CAD to $9,788 CAD

A
Cheapest Retailer
-
$4,452 CAD
HK$24,900 HKD
A
Retailer 2
-
$4,552 CAD
$3,259 USD
View
A
Retailer 3
-
$4,729 CAD
$3,385 USD
View
A
Retailer 4
-
$4,756 CAD
$3,404 USD
View
B+
Retailer 5
-
$5,111 CAD
$3,659 USD
View
Final sale: no returns
B+
Retailer 6
-
$5,232 CAD
A$5,763 AUD
View
A
Retailer 7
-
$5,381 CAD
$3,852 USD
View
Retailer 8
-
$5,499 CAD
SGD 5,320 SGD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$5,671 CAD
£3,197 GBP
View
B+
Retailer 10
-
$5,955 CAD
A$6,558 AUD
View
Retailer 11
-
$6,146 CAD
$4,400 USD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
$6,760 CAD
€4,609 EUR
View
B
Retailer 13
-
$7,781 CAD
$5,570 USD
View
B
Retailer 14
-
$9,133 CAD
$6,538 USD
View
B
Retailer 15
-
$9,788 CAD
£5,517 GBP
View
Most Expensive
NZ Jewellers
2655f6ef-5654-4938-861c-cb17c05216c5 · Sep 25
$10,995 CAD
$7,871 USD
View
Price last confirmed 35 days ago
15 more retailers have this diamond
Prices start from $4,452 CADSave up to $5,335 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
1.51ct Round
$4,452 CAD