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Heart|Natural|GIA

1.51ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 6431871498

Certificate GIA 6431871498

Diamond specifications and retailer prices

From ₹2,03,149 INR
As of November 6, 2026
Save ₹1,00,225 INR (33%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: ₹3,03,374 INR at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6431871498. Listed at 8 retailers as of November 6, 2026, with prices from ₹2,03,149 to ₹3,03,374, a ₹1,00,225 spread on the same certified stone. 77 Diamonds lists it at ₹3,03,374. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.09°
Pavilion angle39.18°
OriginNatural
Grading LabGIA
CertificateGIA 6431871498
Dimensions6.82 × 8.06 × 4.63 mm
L/W Ratio1.18
Top View
6.82 mm8.06 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6431871498
Side View
Table 61.0%Crown 39.09°Girdle: MED-VTKPavilion 39.18°Culet: NoneDepth 57.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: ₹3,03,374 INR|Low: ₹2,00,519 INR|High: ₹3,06,736 INR|Avg: ₹2,41,751 INR|+1.4%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5₹2,03,149 INR
Retailer 7₹2,06,436 INR
Retailer 8₹2,07,469 INR
Retailer 6₹2,16,486 INR
Retailer 9₹2,47,010 INR
Retailer 3₹2,48,982 INR
Retailer 4₹2,50,109 INR
Retailer 2₹2,96,224 INR
77 Diamonds₹3,03,374 INR

42 data points across 9 retailers

8 retailers₹2,03,149 INR to ₹3,03,374 INR

A
Cheapest Retailer
-
₹2,03,149 INR
A
Retailer 2
-
₹2,06,436 INR
View
A
Retailer 3
-
₹2,07,469 INR
View
A
Retailer 4
-
₹2,16,486 INR
View
A
Retailer 5
-
₹2,48,982 INR
View
A
Retailer 6
-
₹2,50,109 INR
View
A
Retailer 7
-
₹2,96,224 INR
View
Most Expensive
A
77 Diamonds
HSMBVVDQGGSS · Nov 6
₹3,03,374 INR
£2,543 GBP
View
7 more retailers have this diamond
Prices start from ₹2,03,149 INRSave up to ₹1,00,225 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
₹2,03,149 INR