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1.21ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 670478896

Shape and cutting style on the report: Round brilliant

Certificate IGI 670478896

Diamond specifications and retailer prices

From ₹1,65,863 INR
As of November 5, 2026
Save ₹1,54,874 INR (48%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: ₹4,53,258 INR at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 670478896. Listed at 16 retailers as of November 4, 2026, with a 93% 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

1.21
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 670478896
Dimensions6.86 × 6.91 × 4.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.86 mm6.91 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670478896
Side View
Table 58.0%Crown 34.4°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.9%

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: Nov 5
Current: ₹3,97,845 INR|Low: ₹1,65,863 INR|High: ₹4,53,258 INR|Avg: ₹2,31,543 INR|-12.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 7₹1,65,863 INR
Retailer 8₹1,75,724 INR
Retailer 9₹1,85,774 INR
Retailer 10₹1,85,774 INR
Retailer 6₹1,87,370 INR
Retailer 2₹2,01,646 INR
Retailer 4₹2,23,999 INR
Retailer 3₹2,48,794 INR
Retailer 5₹3,20,737 INR
NZ Jewellers₹3,97,845 INR

29 data points across 10 retailers

16 retailers₹1,65,863 INR to ₹3,20,737 INR

A
Cheapest Retailer
-
₹1,65,863 INR
A
Retailer 2
-
₹1,75,724 INR
View
Retailer 3
-
₹1,85,774 INR
View
Price last confirmed 57 days ago
Retailer 4
-
₹1,85,774 INR
View
Price last confirmed 45 days ago
Retailer 5
-
₹1,85,774 INR
View
Price last confirmed 16 days ago
A
Retailer 6
-
₹1,87,370 INR
View
Retailer 7
-
₹1,90,282 INR
View
Price last confirmed 22 days ago
A
Retailer 8
-
₹2,01,646 INR
View
Retailer 9
-
₹2,14,419 INR
View
Price last confirmed 61 days ago
Retailer 10
-
₹2,14,419 INR
View
Price last confirmed 46 days ago
B+
Retailer 11
-
₹2,23,999 INR
View
B+
Retailer 12
-
₹2,48,794 INR
View
B
Retailer 13
-
₹3,20,737 INR
View
Retailer 14
-
₹3,97,845 INR
View
Price last confirmed 18 days ago
Retailer 15
-
₹4,53,258 INR
View
Price last confirmed 58 days ago
Most Expensive
NZ Jewellers
4037a78b-fd2d-45af-aade-16b6d7d538be · Sep 21
₹4,53,258 INR
$4,826 USD
View
Price last confirmed 46 days ago
15 more retailers have this diamond
Prices start from ₹1,65,863 INRSave up to ₹1,54,874 INR

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
1.21ct Round
₹1,65,863 INR