Heart|Natural|GIA

1.51ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 6511530906

Certificate GIA 6511530906

Diamond specifications and retailer prices

From €4,768 EUR
£4,194 GBP
As of November 1, 2026
Save €4,090 EUR (46%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €8,858 EUR 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6511530906. Listed at 9 retailers as of October 30, 2026, with prices from €4,768 to €8,858, a €4,090 spread on the same certified stone. NZ Jewellers lists it at €8,858. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.52°
Pavilion angle41.99°
OriginNatural
Grading LabGIA
CertificateGIA 6511530906
Dimensions6.98 × 8.02 × 4.83 mm
L/W Ratio1.15
Top View
6.98 mm8.02 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6511530906
Side View
Table 61.0%Crown 36.52°Girdle: Slightly Thick to ThickPavilion 41.99°Culet: NDepth 60.2%

Caratlytics Score

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A
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 1
Current: €8,858 EUR|Low: €4,753 EUR|High: €9,057 EUR|Avg: €6,078 EUR|-2.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 4€4,768 EUR
Retailer 2€4,955 EUR
Retailer 8€5,160 EUR
Retailer 5€5,296 EUR
Retailer 6€5,296 EUR
Retailer 9€5,353 EUR
Retailer 7€5,391 EUR
Retailer 3€7,803 EUR
NZ Jewellers€8,858 EUR

45 data points across 9 retailers

9 retailers€4,768 EUR to €8,858 EUR

A
Cheapest Retailer
-
€4,768 EUR
£4,194 GBP
A
Retailer 2
-
€4,955 EUR
£4,359 GBP
View
B+
Retailer 3
-
€5,160 EUR
$5,765 USD
View
A
Retailer 4
-
€5,296 EUR
$5,917 USD
View
A
Retailer 5
-
€5,296 EUR
$5,917 USD
View
Retailer 6
-
€5,353 EUR
A$9,201 AUD
View
Price last confirmed 22 days ago
B+
Retailer 7
-
€5,391 EUR
$6,023 USD
View
B+
Retailer 8
-
€7,803 EUR
£6,864 GBP
View
Most Expensive
B
NZ Jewellers
8134b5e0-c12e-4565-9ea7-62757ff29826 · Oct 30
€8,858 EUR
$9,896 USD
View
8 more retailers have this diamond
Prices start from €4,768 EURSave up to €4,090 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.

A
1.51ct Heart
€4,768 EUR