CaratHunter
Plans
Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 7546607780

Certificate GIA 7546607780

Diamond specifications and retailer prices

From €3,622 EUR
$4,062 USD
As of November 1, 2026
Save €3,980 EUR (52%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €8,622 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7546607780. Listed at 21 retailers as of November 1, 2026, with a 110% 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7546607780
Dimensions6.80 × 7.95 × 4.72 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
6.80 mm7.95 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7546607780
Side View
Table 59.0%CrownGirdle: MED-THKPavilion 41.2°Culet: NoneDepth 59.3%

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: €4,122 EUR|Low: €3,577 EUR|High: €8,082 EUR|Avg: €4,870 EUR|-4.0%
Retailer 1
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
November 2, 2026
Retailer 2€3,622 EUR
Retailer 14€3,640 EUR
Retailer 18€3,839 EUR
Retailer 16€3,991 EUR
Retailer 7€4,061 EUR
Retailer 8€4,101 EUR
Retailer 5€4,107 EUR
Retailer 1€4,122 EUR
Retailer 4€4,331 EUR
Retailer 12€4,440 EUR
Retailer 13€4,576 EUR
Retailer 17€4,657 EUR
Retailer 9€4,909 EUR
Retailer 10€5,035 EUR
Retailer 3€5,905 EUR
Retailer 15€5,983 EUR
Retailer 11€7,601 EUR
Retailer 6€7,621 EUR

25 data points across 18 retailers

21 retailers€3,622 EUR to €7,601 EUR

A
Cheapest Retailer
-
€3,622 EUR
$4,062 USD
A
Retailer 2
-
€3,640 EUR
HK$31,900 HKD
View
A
Retailer 3
-
€3,839 EUR
$4,306 USD
View
B+
Retailer 4
-
€3,991 EUR
$4,476 USD
View
Final sale: no returns
A
Retailer 5
-
€4,061 EUR
$4,555 USD
View
A
Retailer 6
-
€4,101 EUR
$4,600 USD
View
A
Retailer 7
-
€4,107 EUR
$4,607 USD
View
B+
Retailer 8
-
€4,122 EUR
View
B+
Retailer 9
-
€4,331 EUR
$4,858 USD
View
B+
Retailer 10
-
€4,440 EUR
$4,980 USD
View
B+
Retailer 11
-
€4,576 EUR
$5,133 USD
View
Retailer 12
-
€4,607 EUR
$5,167 USD
View
Price last confirmed 12 days ago
B+
Retailer 13
-
€4,657 EUR
£4,113 GBP
View
B+
Retailer 14
-
€4,909 EUR
SGD 7,441 SGD
View
Retailer 15
-
€5,035 EUR
A$8,689 AUD
View
Price last confirmed 24 days ago
B
Retailer 16
-
€5,302 EUR
A$9,148 AUD
View
B+
Retailer 17
-
€5,905 EUR
ZAR 107,001 ZAR
View
B+
Retailer 18
-
€5,983 EUR
$6,710 USD
View
B
Retailer 19
-
€7,601 EUR
£6,713 GBP
View
Retailer 20
-
€7,621 EUR
$8,548 USD
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
dbf135a3-0579-43ef-9381-30a46e39cd96 · Sep 25
€8,622 EUR
$9,670 USD
View
Price last confirmed 38 days ago
20 more retailers have this diamond
Prices start from €3,622 EURSave up to €3,980 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
€3,622 EUR