Round|Natural|GIA

1.25ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6401599815

Certificate GIA 6401599815

Diamond specifications and retailer prices

From $2,767 CAD
$1,981 USD
As of October 26, 2026
Save $2,628 CAD (49%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,683 CAD at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6401599815. Listed at 17 retailers as of October 26, 2026, with a 95% 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

1.25
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6401599815
Dimensions6.86 × 6.83 × 4.32 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.86 mm6.83 mm1.25 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6401599815
Side View
Table 57.0%Crown 35°Girdle: ThickPavilion 41.4°Culet: NoneDepth 63.1%

Caratlytics Score

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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 26
Current: $3,335 CAD|Low: $2,601 CAD|High: $5,608 CAD|Avg: $3,308 CAD|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 27, 2026
Retailer 11$2,767 CAD
Retailer 2$2,777 CAD
Retailer 6$2,829 CAD
Retailer 9$2,839 CAD
Retailer 12$2,932 CAD
Retailer 8$3,076 CAD
Retailer 3$3,196 CAD
Retailer 10$3,269 CAD
Retailer 1$3,335 CAD
Retailer 4$3,659 CAD
Retailer 5$3,824 CAD
Retailer 7$5,395 CAD

16 data points across 12 retailers

17 retailers$2,767 CAD to $5,395 CAD

A
Cheapest Retailer
-
$2,767 CAD
$1,981 USD
A
Retailer 2
-
$2,777 CAD
$1,988 USD
View
A
Retailer 3
-
$2,829 CAD
$2,025 USD
View
A
Retailer 4
-
$2,932 CAD
$2,099 USD
View
A
Retailer 5
-
$3,076 CAD
$2,202 USD
View
Retailer 6
-
$3,076 CAD
$2,202 USD
View
Price last confirmed 23 days ago
Retailer 7
-
$3,076 CAD
$2,202 USD
View
Price last confirmed 19 days ago
A
Retailer 8
-
$3,217 CAD
$2,303 USD
View
A
Retailer 9
-
$3,269 CAD
$2,341 USD
View
A
Retailer 10
-
$3,335 CAD
£1,880 GBP
View
Retailer 11
-
$3,548 CAD
$2,540 USD
View
Price last confirmed 27 days ago
Retailer 12
-
$3,688 CAD
$2,640 USD
View
Price last confirmed 39 days ago
B+
Retailer 13
-
$3,824 CAD
€2,607 EUR
View
B
Retailer 14
-
$5,395 CAD
£3,041 GBP
View
Retailer 15
-
$6,430 CAD
$4,603 USD
View
Price last confirmed 28 days ago
Retailer 16
-
$6,430 CAD
$4,603 USD
View
Price last confirmed 20 days ago
Most Expensive
NZ Jewellers
e3228737-f0b4-43d0-9321-c885df49815f · Sep 19
$6,683 CAD
$4,784 USD
View
Price last confirmed 41 days ago
16 more retailers have this diamond
Prices start from $2,767 CADSave up to $2,628 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
1.25ct Round
$2,767 CAD