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Heart|Natural|GIA

1.50ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 7553417556

Certificate GIA 7553417556

Diamond specifications and retailer prices

From €3,071 EUR
HK$26,800 HKD
As of November 1, 2026
Save €3,506 EUR (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €7,579 EUR at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded I 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 7553417556. Listed at 17 retailers as of November 1, 2026, with a 114% 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

1.50
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7553417556
Dimensions6.79 × 7.69 × 4.75 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.79 mm7.69 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7553417556
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.2%

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 1
Current: €3,501 EUR|Low: €3,071 EUR|High: €7,100 EUR|Avg: €4,244 EUR|-5.2%
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
November 2, 2026
Retailer 12€3,071 EUR
Retailer 11€3,128 EUR
Retailer 9€3,283 EUR
Retailer 1€3,501 EUR
Retailer 15€3,509 EUR
Retailer 4€3,517 EUR
Retailer 6€3,625 EUR
Retailer 10€3,741 EUR
Retailer 13€3,918 EUR
Retailer 8€3,929 EUR
Retailer 3€4,042 EUR
Retailer 7€4,452 EUR
Retailer 2€5,182 EUR
Retailer 5€6,534 EUR
Retailer 14€6,576 EUR

23 data points across 15 retailers

17 retailers€3,071 EUR to €6,576 EUR

A
Cheapest Retailer
-
€3,071 EUR
HK$26,800 HKD
A
Retailer 2
-
€3,128 EUR
$3,495 USD
View
A
Retailer 3
-
€3,283 EUR
$3,668 USD
View
A
Retailer 4
-
€3,501 EUR
$3,911 USD
View
Final sale: no returns
A
Retailer 5
-
€3,509 EUR
View
A
Retailer 6
-
€3,517 EUR
$3,929 USD
View
A
Retailer 7
-
€3,625 EUR
$4,050 USD
View
A
Retailer 8
-
€3,741 EUR
$4,180 USD
View
A
Retailer 9
-
€3,918 EUR
£3,447 GBP
View
A
Retailer 10
-
€3,929 EUR
£3,457 GBP
View
B+
Retailer 11
-
€4,042 EUR
$4,516 USD
View
Retailer 12
-
€4,452 EUR
A$7,652 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
€4,543 EUR
A$7,808 AUD
View
B+
Retailer 14
-
€5,182 EUR
ZAR 93,519 ZAR
View
Retailer 15
-
€6,534 EUR
$7,300 USD
View
Price last confirmed 9 days ago
B
Retailer 16
-
€6,576 EUR
£5,785 GBP
View
Most Expensive
NZ Jewellers
c057e1e3-6303-4715-9e07-cd1e1d0fee64 · Sep 25
€7,579 EUR
$8,467 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from €3,071 EURSave up to €3,506 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
1.50ct Heart
€3,071 EUR