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Round|Natural|GIA

1.28ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 3555600029

Certificate GIA 3555600029

Diamond specifications and retailer prices

From ₹2,49,733 INR
As of November 6, 2026
Save ₹3,33,980 INR (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: ₹5,83,713 INR at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3555600029. Listed at 21 retailers as of November 5, 2026, with prices from ₹2,49,733 to ₹5,83,713, a ₹3,33,980 spread on the same certified stone. NZ Jewellers lists it at ₹5,83,713. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 3555600029
Dimensions6.94 × 6.97 × 4.27 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Crystal, Feather, Needle, Indented Natural
Top View
6.94 mm6.97 mm1.28 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555600029
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
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 6
Current: ₹2,49,733 INR|Low: ₹2,49,733 INR|High: ₹5,66,150 INR|Avg: ₹3,59,747 INR|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1₹2,49,733 INR
Retailer 7₹2,50,015 INR
Retailer 9₹2,87,865 INR
Retailer 2₹3,20,549 INR
Retailer 3₹3,44,592 INR
Retailer 8₹3,57,366 INR
Retailer 4₹3,89,204 INR
Retailer 5₹4,08,928 INR
Retailer 6₹5,58,730 INR

26 data points across 9 retailers

21 retailers₹2,49,733 INR to ₹5,83,713 INR

A
Cheapest Retailer
-
₹2,49,733 INR
A
Retailer 2
-
₹2,50,015 INR
View
A
Retailer 3
-
₹2,87,865 INR
View
A
Retailer 4
-
₹2,97,445 INR
View
A
Retailer 5
-
₹3,09,185 INR
View
Final sale: no returns
A
Retailer 6
-
₹3,20,549 INR
View
A
Retailer 7
-
₹3,22,146 INR
View
Retailer 8
-
₹3,35,013 INR
View
Price last confirmed 8 days ago
B+
Retailer 9
-
₹3,35,013 INR
View
A
Retailer 10
-
₹3,44,592 INR
View
B+
Retailer 11
-
₹3,47,786 INR
View
B+
Retailer 12
-
₹3,47,880 INR
View
B+
Retailer 13
-
₹3,48,631 INR
View
B+
Retailer 14
-
₹3,57,366 INR
View
Retailer 15
-
₹3,58,774 INR
View
Price last confirmed 29 days ago
B+
Retailer 16
-
₹3,86,575 INR
View
B+
Retailer 17
-
₹3,89,204 INR
View
B+
Retailer 18
-
₹4,08,928 INR
View
B
Retailer 19
-
₹5,58,730 INR
View
Retailer 20
-
₹5,68,967 INR
View
Price last confirmed 66 days ago
Most Expensive
B
NZ Jewellers
3a3018ef-e528-4962-97d6-8518516e0f75 · Nov 5
₹5,83,713 INR
$6,215 USD
View
20 more retailers have this diamond
Prices start from ₹2,49,733 INRSave up to ₹3,33,980 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
₹2,49,733 INR