Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

ID • H/SI1 • GIA 6561498732

Certificate GIA 6561498732

Diamond specifications and retailer prices

From €3,311 EUR

HK$28,900 HKD

As of November 2, 2026

Save €3,861 EUR (54%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: €7,172 EUR at MOH London · As of November 1, 2026

View at MOH London

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded H 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 6561498732. Listed at 15 retailers as of November 1, 2026, with prices from €3,311 to €7,172, a €3,861 spread on the same certified stone. MOH London lists it at €7,172. 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

SI1

Clarity

Ideal

Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal

PolishExcellent

SymmetryExcellent

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 6561498732

Dimensions6.86 × 7.75 × 4.64 mm

L/W Ratio1.13

Girdle conditionFaceted

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 6561498732

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2

Current: €7,172 EUR|Low: €3,265 EUR|High: €7,672 EUR|Avg: €4,638 EUR|-6.5%

MOH London

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

November 2, 2026

Retailer 2€3,311 EUR

Retailer 13€3,775 EUR

Retailer 12€3,785 EUR

Retailer 3€3,955 EUR

Retailer 10€3,980 EUR

Retailer 6€4,185 EUR

Retailer 8€4,216 EUR

Retailer 9€4,227 EUR

Retailer 5€4,265 EUR

Retailer 7€4,303 EUR

Retailer 11€4,798 EUR

Retailer 14€5,575 EUR

Retailer 4€6,959 EUR

MOH London€7,172 EUR

21 data points across 14 retailers

15 retailers€3,311 EUR to €7,172 EUR

Cheapest Retailer

€3,311 EUR

HK$28,900 HKD

Retailer 2

€3,775 EUR

View

Retailer 3

€3,785 EUR

$4,229 USD

View

Retailer 4

€3,955 EUR

$4,419 USD

View

Retailer 5

€3,980 EUR

$4,446 USD

View

Retailer 6

€4,185 EUR

SGD 6,318 SGD

View

B+

Retailer 7

€4,216 EUR

$4,710 USD

View

Final sale: no returns

B+

Retailer 8

€4,227 EUR

£3,719 GBP

View

B+

Retailer 9

€4,265 EUR

$4,765 USD

View

B+

Retailer 10

€4,303 EUR

£3,786 GBP

View

B+

Retailer 11

€4,798 EUR

$5,360 USD

View

Retailer 12

€5,055 EUR

A$8,689 AUD

View

Price last confirmed 23 days ago

B+

Retailer 13

€5,575 EUR

ZAR 100,623 ZAR

View

Retailer 14

€6,959 EUR

$7,775 USD

View

Most Expensive

MOH London

53F8CD7FB · Nov 1

€7,172 EUR

£6,309 GBP

View

14 more retailers have this diamond

Prices start from €3,311 EURSave up to €3,861 EUR

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

€3,311 EUR