Heart|Natural|GIA

1.51ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 7548658345

Certificate GIA 7548658345

Diamond specifications and retailer prices

From €4,058 EUR
As of November 6, 2026
Save €4,364 EUR (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €9,990 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 G 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 7548658345. Listed at 18 retailers as of November 6, 2026, with a 108% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle40.1°
OriginNatural
Grading LabGIA
CertificateGIA 7548658345
Dimensions6.85 × 7.92 × 4.61 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
6.85 mm7.92 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7548658345
Side View
Table 59.0%CrownGirdle: STK-VTKPavilion 40.1°Culet: NoneDepth 58.2%

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 6
Current: €5,136 EUR|Low: €4,001 EUR|High: €8,721 EUR|Avg: €5,345 EUR|-7.0%
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
November 7, 2026
Retailer 5€4,058 EUR
Retailer 7€4,078 EUR
Retailer 14€4,326 EUR
Retailer 6€4,446 EUR
Retailer 2€4,514 EUR
Retailer 13€4,541 EUR
Retailer 9€4,555 EUR
Retailer 11€4,595 EUR
Retailer 3€4,792 EUR
Retailer 4€5,098 EUR
Retailer 1€5,136 EUR
Retailer 16€5,452 EUR
Retailer 8€5,666 EUR
Retailer 10€6,487 EUR
Retailer 12€7,812 EUR
Retailer 15€8,422 EUR

27 data points across 16 retailers

18 retailers€4,058 EUR to €8,422 EUR

A
Cheapest Retailer
-
€4,058 EUR
Retailer 2
-
€4,078 EUR
View
Price last confirmed 8 days ago
A
Retailer 3
-
€4,326 EUR
View
A
Retailer 4
-
€4,446 EUR
View
Final sale: no returns
A
Retailer 5
-
€4,514 EUR
View
A
Retailer 6
-
€4,541 EUR
View
A
Retailer 7
-
€4,555 EUR
View
A
Retailer 8
-
€4,595 EUR
View
A
Retailer 9
-
€4,792 EUR
View
B+
Retailer 10
-
€5,098 EUR
View
B+
Retailer 11
-
€5,136 EUR
View
B+
Retailer 12
-
€5,452 EUR
View
Retailer 13
-
€5,666 EUR
View
Price last confirmed 28 days ago
B+
Retailer 14
-
€5,861 EUR
View
B+
Retailer 15
-
€6,487 EUR
View
B
Retailer 16
-
€7,812 EUR
View
B
Retailer 17
-
€8,422 EUR
View
Most Expensive
NZ Jewellers
dfd524f4-d138-4721-ad10-4a247a2a057c · Sep 25
€9,990 EUR
$11,154 USD
View
Price last confirmed 42 days ago
17 more retailers have this diamond
Prices start from €4,058 EURSave up to €4,364 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
€4,058 EUR