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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 2558582288

Certificate GIA 2558582288

Diamond specifications and retailer prices

From €2,671 EUR
$2,996 USD
As of November 1, 2026
Save €3,189 EUR (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €6,747 EUR at NZ Jewellers · As of September 25, 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 2558582288. Listed at 13 retailers as of November 1, 2026, with a 119% 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 2558582288
Dimensions7.02 × 7.80 × 4.64 mm
L/W Ratio1.11
Girdle conditionFaceted
Top View
7.02 mm7.80 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558582288
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.4%

Caratlytics Score

How it works →
A
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 1
Current: €3,370 EUR|Low: €2,636 EUR|High: €6,387 EUR|Avg: €3,834 EUR|-3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10€2,671 EUR
Retailer 4€2,682 EUR
Retailer 9€2,829 EUR
Retailer 2€2,873 EUR
Retailer 7€2,970 EUR
Retailer 1€3,370 EUR
Retailer 8€3,634 EUR
Retailer 6€4,020 EUR
Retailer 5€4,779 EUR
Retailer 3€5,545 EUR
Retailer 11€5,860 EUR

33 data points across 11 retailers

13 retailers€2,671 EUR to €5,860 EUR

A
Cheapest Retailer
-
€2,671 EUR
$2,996 USD
A
Retailer 2
-
€2,682 EUR
HK$23,500 HKD
View
A
Retailer 3
-
€2,829 EUR
$3,173 USD
View
A
Retailer 4
-
€2,873 EUR
$3,222 USD
View
A
Retailer 5
-
€2,970 EUR
$3,331 USD
View
Final sale: no returns
A
Retailer 6
-
€3,370 EUR
$3,780 USD
View
A
Retailer 7
-
€3,634 EUR
£3,209 GBP
View
B+
Retailer 8
-
€3,853 EUR
A$6,648 AUD
View
B+
Retailer 9
-
€4,020 EUR
View
B+
Retailer 10
-
€4,779 EUR
$5,360 USD
View
B+
Retailer 11
-
€5,545 EUR
$6,219 USD
View
B
Retailer 12
-
€5,860 EUR
£5,175 GBP
View
Most Expensive
NZ Jewellers
79b6de24-c94c-44b2-a0a4-19c056c56763 · Sep 25
€6,747 EUR
$7,567 USD
View
Price last confirmed 38 days ago
12 more retailers have this diamond
Prices start from €2,671 EURSave up to €3,189 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
€2,671 EUR