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Heart|Natural|GIA

1.50ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 5423981985

Certificate GIA 5423981985

Diamond specifications and retailer prices

From €3,825 EUR
$4,273 USD
As of October 30, 2026
Save €1,645 EUR (30%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €8,840 EUR at NZ Jewellers · As of September 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5423981985. Listed at 16 retailers as of October 30, 2026, with a 43% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.53°
Pavilion angle39.74°
OriginNatural
Grading LabGIA
CertificateGIA 5423981985
Dimensions7.75 × 6.72 × 4.12 mm
L/W Ratio1.15
Top View
7.75 mm6.72 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5423981985
Side View
Table 59.0%Crown 40.53°Girdle: STK-ETKPavilion 39.74°Culet: NoneDepth 61.3%

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: Oct 30
Current: €5,470 EUR|Low: €3,687 EUR|High: €8,195 EUR|Avg: €4,815 EUR|+12.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 4€3,809 EUR
Retailer 3€3,825 EUR
Retailer 7€4,051 EUR
Retailer 6€4,072 EUR
Retailer 5€4,158 EUR
Retailer 2€4,176 EUR
Retailer 13€4,736 EUR
Retailer 9€4,968 EUR
Retailer 12€4,968 EUR
Retailer 8€5,138 EUR
Retailer 1€5,470 EUR
Retailer 10€5,831 EUR
Retailer 11€7,880 EUR

37 data points across 13 retailers

16 retailers€3,825 EUR to €5,470 EUR

A
Cheapest Retailer
-
€3,825 EUR
$4,273 USD
B+
Retailer 2
-
€4,072 EUR
$4,549 USD
View
B+
Retailer 3
-
€4,158 EUR
CA$6,451 CAD
View
Retailer 4
-
€4,176 EUR
$4,665 USD
View
Price last confirmed 25 days ago
Retailer 5
-
€4,736 EUR
$5,291 USD
View
Price last confirmed 25 days ago
Retailer 6
-
€4,788 EUR
$5,349 USD
View
Price last confirmed 24 days ago
Retailer 7
-
€4,788 EUR
$5,349 USD
View
Price last confirmed 31 days ago
Retailer 8
-
€4,788 EUR
$5,349 USD
View
Price last confirmed 24 days ago
B
Retailer 9
-
€4,968 EUR
$5,550 USD
View
B
Retailer 10
-
€4,968 EUR
$5,550 USD
View
B
Retailer 11
-
€5,138 EUR
$5,740 USD
View
B
Retailer 12
-
€5,470 EUR
£4,812 GBP
View
Retailer 13
-
€5,524 EUR
$6,172 USD
View
Price last confirmed 32 days ago
Retailer 14
-
€5,831 EUR
$6,514 USD
View
Price last confirmed 24 days ago
Retailer 15
-
€7,880 EUR
£6,932 GBP
View
Price last confirmed 27 days ago
Most Expensive
NZ Jewellers
76986bd6-e0d3-4065-859a-4849ef50200c · Sep 30
€8,840 EUR
$9,876 USD
View
Price last confirmed 32 days ago
15 more retailers have this diamond
Prices start from €3,825 EURSave up to €1,645 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
€3,825 EUR