Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

ID • H/SI1 • GIA 6561498732

Certificate GIA 6561498732

Diamond specifications and retailer prices

From €3,298 EUR

HK$28,900 HKD

As of November 2, 2026

Save €3,947 EUR (54%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: €7,246 EUR at MOH London · As of November 2, 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 2, 2026, with prices from €3,298 to €7,246, a €3,947 spread on the same certified stone. MOH London lists it at €7,246. 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

Colour

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: €7,246 EUR|Low: €3,252 EUR|High: €7,642 EUR|Avg: €4,627 EUR|-5.2%

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€3,298 EUR

Retailer 13€3,760 EUR

Retailer 12€3,770 EUR

Retailer 3€3,940 EUR

Retailer 10€3,964 EUR

Retailer 6€4,168 EUR

Retailer 8€4,199 EUR

Retailer 9€4,211 EUR

Retailer 5€4,248 EUR

Retailer 7€4,286 EUR

Retailer 11€4,779 EUR

Retailer 14€5,553 EUR

Retailer 4€6,932 EUR

MOH London€7,246 EUR

21 data points across 14 retailers

15 retailers€3,298 EUR to €7,246 EUR

Cheapest Retailer

€3,298 EUR

HK$28,900 HKD

Retailer 2

€3,760 EUR

View

Retailer 3

€3,770 EUR

$4,229 USD

View

Retailer 4

€3,940 EUR

$4,419 USD

View

Retailer 5

€3,964 EUR

$4,446 USD

View

Retailer 6

€4,168 EUR

SGD 6,318 SGD

View

B+

Retailer 7

€4,199 EUR

$4,710 USD

View

Final sale: no returns

B+

Retailer 8

€4,211 EUR

£3,719 GBP

View

B+

Retailer 9

€4,248 EUR

$4,765 USD

View

B+

Retailer 10

€4,286 EUR

£3,786 GBP

View

B+

Retailer 11

€4,779 EUR

$5,360 USD

View

Retailer 12

€5,035 EUR

A$8,689 AUD

View

Price last confirmed 23 days ago

B+

Retailer 13

€5,553 EUR

ZAR 100,623 ZAR

View

Retailer 14

€6,932 EUR

$7,775 USD

View

Most Expensive

MOH London

53F8CD7FB · Nov 2

€7,246 EUR

£6,399 GBP

View

14 more retailers have this diamond

Prices start from €3,298 EURSave up to €3,947 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

€3,298 EUR