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1.64ct M SI1 Round Natural Diamond

EX • M/SI1 • IGI 245635868

Shape and cutting style on the report: Round brilliant

Certificate IGI 245635868

Diamond specifications and retailer prices

From ₹2,51,789 INR
As of November 1, 2026
Save ₹1,15,166 INR (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: ₹3,66,956 INR at Yorxs · As of November 5, 2026
View at Yorxs

About this 1.64ct natural round diamond

This 1.64ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 245635868. Listed at 2 retailers as of November 1, 2026, with prices from ₹2,51,789 to ₹3,66,956, a ₹1,15,166 spread on the same certified stone. Yorxs lists it at ₹3,66,956. 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

1.64
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle33°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 245635868
Dimensions7.74 × 7.70 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.74 mm7.70 mm1.64 ctM / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 245635868
Side View
Table 61.5%Crown 33°Girdle: THN-MEDPavilion 41.1°Culet: NoneDepth 58.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: ₹2,51,789 INR|Low: ₹2,51,789 INR|High: ₹3,69,733 INR|Avg: ₹3,09,203 INR|-0.2%
Retailer 1
Yorxs
November 5, 2026
Retailer 1₹2,51,789 INR
Yorxs₹3,66,956 INR

21 data points across 2 retailers

2 retailers₹2,51,789 INR to ₹3,66,956 INR

B+
Cheapest Retailer
-
₹2,51,789 INR
Most Expensive
B
Yorxs
62C836053 · Nov 5
₹3,66,956 INR
€3,699 EUR
View
1 more retailer has this diamond
Prices start from ₹2,51,789 INRSave up to ₹1,15,166 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.

B+
1.64ct Round
₹2,51,789 INR