Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 6395991628

Certificate GIA 6395991628

Diamond specifications and retailer prices

From $6,142 CAD

£3,462 GBP

As of November 2, 2026

Save $7,234 CAD (54%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: $13,375 CAD at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6395991628. Listed at 17 retailers as of October 30, 2026, with prices from $6,142 to $13,375, a $7,234 spread on the same certified stone. NZ Jewellers lists it at $13,375. 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

Color

SI2

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 6395991628

Dimensions7.21 × 7.86 × 4.42 mm

L/W Ratio1.09

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 6395991628

Side View

Caratlytics Score

How it works →

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 2

Current: $13,375 CAD|Low: $5,991 CAD|High: $13,375 CAD|Avg: $9,048 CAD

NZ Jewellers

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

November 2, 2026

Retailer 4$6,142 CAD

Retailer 7$6,216 CAD

Retailer 2$7,613 CAD

Retailer 6$7,997 CAD

Retailer 3$9,048 CAD

Retailer 5$12,498 CAD

NZ Jewellers$13,375 CAD

44 data points across 7 retailers

17 retailers$6,142 CAD to $13,375 CAD

Cheapest Retailer

$6,142 CAD

£3,462 GBP

B+

Retailer 2

$6,216 CAD

$4,450 USD

View

B+

Retailer 3

$6,593 CAD

$4,720 USD

View

B+

Retailer 4

$6,593 CAD

$4,720 USD

View

B+

Retailer 5

$6,767 CAD

$4,844 USD

View

B+

Retailer 6

$6,817 CAD

$4,880 USD

View

B+

Retailer 7

$6,975 CAD

$4,993 USD

View

B+

Retailer 8

$7,613 CAD

£4,291 GBP

View

Retailer 9

$7,897 CAD

$5,653 USD

View

Retailer 10

$7,997 CAD

$5,725 USD

View

Retailer 11

$7,997 CAD

$5,725 USD

View

Retailer 12

$7,997 CAD

$5,725 USD

View

Retailer 13

$8,213 CAD

$5,880 USD

View

B+

Retailer 14

$9,048 CAD

€6,169 EUR

View

Retailer 15

$9,227 CAD

$6,605 USD

View

Retailer 16

$12,498 CAD

£7,045 GBP

View

Most Expensive

NZ Jewellers

1fc45747-6b72-4cb9-9f11-25bbf6aa3c05 · Oct 30

$13,375 CAD

$9,575 USD

View

16 more retailers have this diamond

Prices start from $6,142 CADSave up to $7,234 CAD

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.

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1.51ct Heart

$6,142 CAD