Round|Natural|GIA

1.51ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2233997457

Certificate GIA 2233997457

Diamond specifications and retailer prices

From $5,543 CAD
HK$31,000 HKD
As of October 30, 2026
Save $6,262 CAD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,763 CAD at NZ Jewellers · As of September 27, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2233997457. Listed at 20 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

1.51
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2233997457
Dimensions7.27 × 7.31 × 4.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.27 mm7.31 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2233997457
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.8%

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: Oct 30
Current: $7,311 CAD|Low: $5,382 CAD|High: $12,301 CAD|Avg: $7,511 CAD|+5.4%
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
October 30, 2026
Retailer 4$5,543 CAD
Retailer 16$5,832 CAD
Retailer 15$6,103 CAD
Retailer 8$6,118 CAD
Retailer 5$6,163 CAD
Retailer 12$6,189 CAD
Retailer 3$6,300 CAD
Retailer 2$6,667 CAD
Retailer 6$6,904 CAD
Retailer 10$7,068 CAD
Retailer 1$7,311 CAD
Retailer 7$7,469 CAD
Retailer 9$8,366 CAD
Retailer 13$8,977 CAD
Retailer 14$11,420 CAD
Retailer 11$11,805 CAD

31 data points across 16 retailers

20 retailers$5,543 CAD to $11,805 CAD

A
Cheapest Retailer
-
$5,543 CAD
HK$31,000 HKD
A
Retailer 2
-
$5,832 CAD
$4,175 USD
View
B+
Retailer 3
-
$6,103 CAD
$4,369 USD
View
Retailer 4
-
$6,118 CAD
$4,380 USD
View
Price last confirmed 27 days ago
B+
Retailer 5
-
$6,163 CAD
$4,412 USD
View
Final sale: no returns
B+
Retailer 6
-
$6,189 CAD
$4,431 USD
View
B+
Retailer 7
-
$6,300 CAD
$4,510 USD
View
B+
Retailer 8
-
$6,667 CAD
$4,772 USD
View
Retailer 9
-
$6,904 CAD
SGD 6,679 SGD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
$7,068 CAD
$5,060 USD
View
B+
Retailer 11
-
$7,126 CAD
A$7,848 AUD
View
B
Retailer 12
-
$7,311 CAD
£4,121 GBP
View
Retailer 13
-
$7,469 CAD
A$8,226 AUD
View
Price last confirmed 21 days ago
B
Retailer 14
-
$8,112 CAD
View
B
Retailer 15
-
$8,366 CAD
€5,704 EUR
View
B
Retailer 16
-
$8,977 CAD
ZAR 103,820 ZAR
View
B
Retailer 17
-
$11,420 CAD
$8,175 USD
View
B
Retailer 18
-
$11,805 CAD
£6,654 GBP
View
Retailer 19
-
$12,330 CAD
$8,827 USD
View
Price last confirmed 20 days ago
Most Expensive
NZ Jewellers
ab1275af-3f0b-453c-948a-a532aab2f23a · Sep 27
$12,763 CAD
$9,137 USD
View
Price last confirmed 34 days ago
19 more retailers have this diamond
Prices start from $5,543 CADSave up to $6,262 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
$5,543 CAD