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Round|Natural|IGI

1.28ct M SI1 Round Natural Diamond

EX • M/SI1 • IGI 726509637

Shape and cutting style on the report: Round brilliant

Certificate IGI 726509637

Diamond specifications and retailer prices

From ₹1,18,006 INR
As of October 30, 2026
Save ₹33,918 INR (22%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: ₹2,71,913 INR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.28ct natural round diamond

This 1.28ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 726509637. Listed at 7 retailers as of October 30, 2026, with a 29% 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

1.28
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 726509637
Dimensions6.90 × 6.91 × 4.33 mm
L/W Ratio1.00
Culet sizePointed
Top View
6.90 mm6.91 mm1.28 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 726509637
Side View
Table 57.0%Crown 36.1°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: ₹2,71,913 INR|Low: ₹83,615 INR|High: ₹2,71,913 INR|Avg: ₹1,36,330 INR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8₹83,615 INR
Retailer 3₹1,10,542 INR
Retailer 5₹1,11,486 INR
Retailer 4₹1,15,832 INR
Retailer 6₹1,18,006 INR
Retailer 7₹1,23,296 INR
Retailer 2₹1,51,924 INR
NZ Jewellers₹2,71,913 INR

33 data points across 8 retailers

7 retailers₹1,18,006 INR to ₹1,51,924 INR

Retailer 1
-
₹1,10,542 INR
Price last confirmed 7 days ago
Retailer 2
-
₹1,11,486 INR
View
Price last confirmed 8 days ago
Retailer 3
-
₹1,15,832 INR
View
Price last confirmed 8 days ago
A
Retailer 4
-
₹1,18,006 INR
View
Retailer 5
-
₹1,23,296 INR
View
Price last confirmed 6 days ago
A
Retailer 6
-
₹1,51,924 INR
View
Most Expensive
NZ Jewellers
47ac3e65-5c01-45f2-a94c-bb7beb97ae69 · Oct 30
₹2,71,913 INR
$2,878 USD
View
Price last confirmed 7 days ago
6 more retailers have this diamond
Prices start from ₹1,18,006 INRSave up to ₹33,918 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
1.28ct Round
₹1,18,006 INR