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Heart|Natural|GIA

1.51ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 1555675433

Certificate GIA 1555675433

Diamond specifications and retailer prices

From €2,864 EUR
HK$25,100 HKD
As of November 1, 2026
Save €3,816 EUR (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €6,681 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 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 1555675433. Listed at 20 retailers as of October 30, 2026, with prices from €2,864 to €6,681, a €3,816 spread on the same certified stone. NZ Jewellers lists it at €6,681. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1555675433
Dimensions7.11 × 7.65 × 4.81 mm
L/W Ratio1.08
Top View
7.11 mm7.65 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1555675433
Side View
Table 54.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 62.9%

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: €6,681 EUR|Low: €2,842 EUR|High: €6,936 EUR|Avg: €4,133 EUR|-3.7%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 16€2,864 EUR
Retailer 5€3,274 EUR
Retailer 9€3,374 EUR
Retailer 6€3,432 EUR
Retailer 10€3,540 EUR
Retailer 2€3,588 EUR
Retailer 8€3,613 EUR
Retailer 4€3,638 EUR
Retailer 3€3,835 EUR
Retailer 17€3,835 EUR
Retailer 19€3,835 EUR
Retailer 13€3,923 EUR
Retailer 7€4,056 EUR
Retailer 11€4,246 EUR
Retailer 12€4,338 EUR
Retailer 18€4,425 EUR
Retailer 15€4,713 EUR
Retailer 14€6,108 EUR
NZ Jewellers€6,681 EUR

27 data points across 19 retailers

20 retailers€2,864 EUR to €6,681 EUR

A
Cheapest Retailer
-
€2,864 EUR
HK$25,100 HKD
A
Retailer 2
-
€3,274 EUR
$3,672 USD
View
A
Retailer 3
-
€3,374 EUR
$3,784 USD
View
A
Retailer 4
-
€3,432 EUR
$3,849 USD
View
A
Retailer 5
-
€3,540 EUR
$3,970 USD
View
Final sale: no returns
A
Retailer 6
-
€3,588 EUR
£3,168 GBP
View
Retailer 7
-
€3,613 EUR
SGD 5,476 SGD
View
Price last confirmed 7 days ago
A
Retailer 8
-
€3,638 EUR
$4,080 USD
View
A
Retailer 9
-
€3,835 EUR
$4,301 USD
View
A
Retailer 10
-
€3,835 EUR
$4,301 USD
View
A
Retailer 11
-
€3,835 EUR
$4,301 USD
View
Retailer 12
-
€3,835 EUR
$4,301 USD
View
Price last confirmed 17 days ago
A
Retailer 13
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€3,923 EUR
£3,464 GBP
View
A
Retailer 14
-
€4,056 EUR
$4,549 USD
View
Retailer 15
-
€4,246 EUR
A$7,327 AUD
View
Price last confirmed 23 days ago
A
Retailer 16
-
€4,338 EUR
View
A
Retailer 17
-
€4,425 EUR
$4,963 USD
View
B+
Retailer 18
-
€4,713 EUR
ZAR 85,406 ZAR
View
B+
Retailer 19
-
€6,108 EUR
£5,394 GBP
View
Most Expensive
B+
NZ Jewellers
75921cc3-57e0-4f48-9a25-f38bd2c9e6a6 · Oct 30
€6,681 EUR
$7,493 USD
View
19 more retailers have this diamond
Prices start from €2,864 EURSave up to €3,816 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
€2,864 EUR