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Heart|Natural|HRD

1.64ct K SI2 Heart Natural Diamond

ID • K/SI2 • HRD 190000105819

Certificate HRD 190000105819

Diamond specifications and retailer prices

From ₹4,48,938 INR
As of November 4, 2026
Save ₹3,68,824 INR (45%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: ₹8,61,059 INR at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.64ct natural heart diamond

This 1.64ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 190000105819. Listed at 6 retailers as of November 4, 2026, with a 82% 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

1.64
Carat
K
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 190000105819
Dimensions6.74 × 8.11 × 4.96 mm
L/W Ratio1.20
Girdle conditionFaceted
Top View
6.74 mm8.11 mm1.64 ctK / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateHRD 190000105819
Side View
Table 59.0%CrownGirdle: MediumPavilionCulet: NoneDepth 61.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: ₹8,17,761 INR|Low: ₹3,36,609 INR|High: ₹8,29,783 INR|Avg: ₹5,25,953 INR|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 4, 2026
Retailer 7₹3,36,609 INR
Retailer 3₹4,48,938 INR
Retailer 6₹4,88,948 INR
Retailer 2₹5,14,869 INR
Retailer 4₹5,29,239 INR
Retailer 5₹5,37,786 INR
Retailer 1₹8,17,761 INR

9 data points across 7 retailers

6 retailers₹4,48,938 INR to ₹8,17,761 INR

B+
Cheapest Retailer
-
₹4,48,938 INR
Retailer 2
-
₹5,14,869 INR
View
Price last confirmed 40 days ago
B
Retailer 3
-
₹5,29,239 INR
View
Retailer 4
-
₹5,94,044 INR
View
Price last confirmed 39 days ago
B
Retailer 5
-
₹8,17,761 INR
View
Most Expensive
NZ Jewellers
b130c17c-76ed-4683-a333-94a6ef108a07 · Sep 30
₹8,61,059 INR
$9,168 USD
View
Price last confirmed 37 days ago
5 more retailers have this diamond
Prices start from ₹4,48,938 INRSave up to ₹3,68,824 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 Heart
₹4,48,938 INR