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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 2556424615

Certificate GIA 2556424615

Diamond specifications and retailer prices

From €3,022 EUR
$3,390 USD
As of November 1, 2026
Save €3,460 EUR (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €7,091 EUR at NZ Jewellers · As of October 24, 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 2556424615. Listed at 15 retailers as of November 1, 2026, with a 114% 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

1.51
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556424615
Dimensions7.08 × 7.99 × 4.41 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
7.08 mm7.99 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556424615
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 55.1%

Caratlytics Score

How it works →
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: €7,091 EUR|Low: €2,988 EUR|High: €7,263 EUR|Avg: €4,286 EUR|-2.4%
NZ Jewellers
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 3€3,022 EUR
Retailer 9€3,024 EUR
Retailer 14€3,187 EUR
Retailer 4€3,376 EUR
Retailer 6€3,379 EUR
Retailer 12€3,403 EUR
Retailer 2€3,576 EUR
Retailer 8€3,771 EUR
Retailer 13€3,885 EUR
Retailer 10€3,970 EUR
Retailer 11€5,162 EUR
Retailer 5€6,255 EUR
Retailer 7€6,482 EUR
NZ Jewellers€7,091 EUR

26 data points across 14 retailers

15 retailers€3,022 EUR to €6,482 EUR

A
Cheapest Retailer
-
€3,022 EUR
$3,390 USD
A
Retailer 2
-
€3,024 EUR
HK$26,500 HKD
View
A
Retailer 3
-
€3,187 EUR
$3,574 USD
View
A
Retailer 4
-
€3,376 EUR
$3,787 USD
View
A
Retailer 5
-
€3,379 EUR
$3,790 USD
View
A
Retailer 6
-
€3,403 EUR
$3,817 USD
View
Final sale: no returns
A
Retailer 7
-
€3,576 EUR
A$6,170 AUD
View
A
Retailer 8
-
€3,771 EUR
$4,230 USD
View
A
Retailer 9
-
€3,885 EUR
£3,431 GBP
View
B+
Retailer 10
-
€3,970 EUR
£3,506 GBP
View
B+
Retailer 11
-
€4,177 EUR
A$7,208 AUD
View
B+
Retailer 12
-
€5,162 EUR
$5,790 USD
View
Retailer 13
-
€6,255 EUR
$7,016 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
€6,482 EUR
£5,725 GBP
View
Most Expensive
NZ Jewellers
f9d93be4-a7b3-4f11-9949-bab1c55ecbc4 · Oct 24
€7,091 EUR
$7,953 USD
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from €3,022 EURSave up to €3,460 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
€3,022 EUR