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Heart|Natural|GIA

1.51ct F SI1 Heart Natural Diamond

ID • F/SI1 • GIA 5553228913

Certificate GIA 5553228913

Diamond specifications and retailer prices

From €4,349 EUR
$4,878 USD
As of November 1, 2026
Save €3,223 EUR (43%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €8,861 EUR at NZ Jewellers · As of September 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 F 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 5553228913. Listed at 20 retailers as of November 1, 2026, with a 74% 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
F
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37°
Pavilion angle43.22°
OriginNatural
Grading LabGIA
CertificateGIA 5553228913
Dimensions7.94 × 6.77 × 4.82 mm
L/W Ratio1.17
Top View
7.94 mm6.77 mm1.51 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5553228913
Side View
Table 59.0%Crown 37°Girdle: Slightly ThickPavilion 43.22°Culet: NoneDepth 60.7%

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: €5,615 EUR|Low: €3,838 EUR|High: €7,899 EUR|Avg: €5,590 EUR|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 12€4,349 EUR
Retailer 11€4,483 EUR
Retailer 9€4,668 EUR
Retailer 2€4,744 EUR
Retailer 8€4,801 EUR
Retailer 5€5,014 EUR
Retailer 6€5,278 EUR
Retailer 4€5,298 EUR
Retailer 3€5,306 EUR
Retailer 1€5,615 EUR
Retailer 10€6,315 EUR
Retailer 7€7,572 EUR

42 data points across 12 retailers

20 retailers€4,349 EUR to €7,572 EUR

A
Cheapest Retailer
-
€4,349 EUR
$4,878 USD
A
Retailer 2
-
€4,483 EUR
$5,028 USD
View
A
Retailer 3
-
€4,668 EUR
$5,236 USD
View
B+
Retailer 4
-
€4,744 EUR
$5,321 USD
View
Final sale: no returns
B+
Retailer 5
-
€4,801 EUR
$5,385 USD
View
B+
Retailer 6
-
€5,014 EUR
£4,428 GBP
View
B+
Retailer 7
-
€5,278 EUR
$5,920 USD
View
Retailer 8
-
€5,298 EUR
$5,942 USD
View
Price last confirmed 32 days ago
Retailer 9
-
€5,298 EUR
$5,942 USD
View
Price last confirmed 32 days ago
Retailer 10
-
€5,298 EUR
$5,942 USD
View
Price last confirmed 48 days ago
Retailer 11
-
€5,298 EUR
$5,942 USD
View
Price last confirmed 17 days ago
Retailer 12
-
€5,306 EUR
A$9,156 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
€5,433 EUR
$6,093 USD
View
B+
Retailer 14
-
€5,615 EUR
View
Retailer 15
-
€6,113 EUR
$6,856 USD
View
Price last confirmed 56 days ago
Retailer 16
-
€6,113 EUR
$6,856 USD
View
Price last confirmed 34 days ago
Retailer 17
-
€6,113 EUR
$6,856 USD
View
Price last confirmed 48 days ago
B+
Retailer 18
-
€6,315 EUR
ZAR 114,423 ZAR
View
B
Retailer 19
-
€7,572 EUR
£6,687 GBP
View
Most Expensive
NZ Jewellers
5c00d538-971f-4924-a6de-5e7610e26984 · Sep 30
€8,861 EUR
$9,938 USD
View
Price last confirmed 33 days ago
19 more retailers have this diamond
Prices start from €4,349 EURSave up to €3,223 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
€4,349 EUR