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Round|Natural|IGI

1.29ct J SI2 Round Natural Diamond

EX • J/SI2 • IGI 678518039

Shape and cutting style on the report: Round brilliant

Certificate IGI 678518039

Diamond specifications and retailer prices

From $1,260 CAD
₹85,877 INR
As of October 30, 2026
Save $1,700 CAD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,918 CAD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 1.29ct natural round diamond

This 1.29ct 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 IGI 678518039. Listed at 15 retailers as of October 29, 2026, with a 135% 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

1.29
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 678518039
Dimensions6.90 × 6.86 × 4.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.90 mm6.86 mm1.29 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 678518039
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.4%

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 30
Current: $1,260 CAD|Low: $1,252 CAD|High: $2,979 CAD|Avg: $1,924 CAD|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 1$1,260 CAD
Retailer 5$1,539 CAD
Retailer 2$1,550 CAD
Retailer 6$1,794 CAD
Retailer 3$2,254 CAD
Retailer 4$2,959 CAD

44 data points across 6 retailers

15 retailers$1,260 CAD to $2,959 CAD

A
Cheapest Retailer
-
$1,260 CAD
₹85,877 INR
Retailer 2
-
$1,529 CAD
$1,094 USD
View
Price last confirmed 89 days ago
A
Retailer 3
-
$1,539 CAD
$1,102 USD
View
A
Retailer 4
-
$1,550 CAD
£874 GBP
View
Retailer 5
-
$1,606 CAD
$1,150 USD
View
Price last confirmed 43 days ago
Retailer 6
-
$1,606 CAD
$1,150 USD
View
Price last confirmed 23 days ago
Retailer 7
-
$1,606 CAD
$1,150 USD
View
Price last confirmed 23 days ago
Retailer 8
-
$1,668 CAD
$1,194 USD
View
Price last confirmed 31 days ago
A
Retailer 9
-
$1,794 CAD
$1,284 USD
View
Retailer 10
-
$1,854 CAD
$1,327 USD
View
Price last confirmed 39 days ago
Retailer 11
-
$1,854 CAD
$1,327 USD
View
Price last confirmed 21 days ago
A
Retailer 12
-
$2,254 CAD
€1,537 EUR
View
A
Retailer 13
-
$2,959 CAD
£1,668 GBP
View
Retailer 14
-
$3,918 CAD
$2,805 USD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
3888afb2-bcee-4462-95a8-39e6533ce625 · Sep 26
$3,918 CAD
$2,805 USD
View
Price last confirmed 34 days ago
14 more retailers have this diamond
Prices start from $1,260 CADSave up to $1,700 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
1.29ct Round
$1,260 CAD