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Heart|Natural|GIA

1.51ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 1242005145

Certificate GIA 1242005145

Diamond specifications and retailer prices

From ₹2,87,301 INR
As of November 6, 2026
Save ₹3,59,150 INR (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: ₹7,70,520 INR at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1242005145. Listed at 16 retailers as of November 4, 2026, with a 125% 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

1.51
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1242005145
Dimensions7.02 × 7.91 × 4.55 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
7.02 mm7.91 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1242005145
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.5%

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: ₹3,32,571 INR|Low: ₹2,82,511 INR|High: ₹6,73,782 INR|Avg: ₹4,20,065 INR|-6.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 12₹2,87,301 INR
Retailer 8₹3,27,311 INR
Retailer 1₹3,32,571 INR
Retailer 11₹3,50,979 INR
Retailer 3₹3,51,261 INR
Retailer 13₹3,57,741 INR
Retailer 6₹3,62,343 INR
Retailer 7₹3,66,288 INR
Retailer 5₹3,81,879 INR
Retailer 2₹4,26,397 INR
Retailer 9₹4,73,075 INR
Retailer 4₹6,07,099 INR
Retailer 10₹6,46,451 INR

28 data points across 13 retailers

16 retailers₹2,87,301 INR to ₹6,46,451 INR

A
Cheapest Retailer
-
₹2,87,301 INR
A
Retailer 2
-
₹3,27,311 INR
View
A
Retailer 3
-
₹3,32,571 INR
View
A
Retailer 4
-
₹3,50,979 INR
View
A
Retailer 5
-
₹3,51,261 INR
View
A
Retailer 6
-
₹3,57,741 INR
View
Final sale: no returns
A
Retailer 7
-
₹3,62,343 INR
View
A
Retailer 8
-
₹3,66,288 INR
View
A
Retailer 9
-
₹3,81,879 INR
View
B+
Retailer 10
-
₹4,26,397 INR
View
Retailer 11
-
₹4,33,535 INR
View
Price last confirmed 28 days ago
B+
Retailer 12
-
₹4,45,463 INR
View
B+
Retailer 13
-
₹4,73,075 INR
View
B+
Retailer 14
-
₹6,07,099 INR
View
B
Retailer 15
-
₹6,46,451 INR
View
Most Expensive
NZ Jewellers
028c2f82-29df-442d-9e7a-e4c4f55a4700 · Sep 25
₹7,70,520 INR
$8,204 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from ₹2,87,301 INRSave up to ₹3,59,150 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
1.51ct Heart
₹2,87,301 INR