Heart|Natural|GIA

1.53ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 1543950076

Certificate GIA 1543950076

Diamond specifications and retailer prices

From €2,215 EUR
As of November 6, 2026
Save €2,610 EUR (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €5,393 EUR at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.53ct natural heart diamond

This 1.53ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1543950076. Listed at 11 retailers as of November 4, 2026, with a 118% 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

1.53
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1543950076
Dimensions7.96 × 7.05 × 4.54 mm
L/W Ratio1.13
Girdle conditionThick
Top View
7.96 mm7.05 mm1.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1543950076
Side View
Table 58.0%CrownGirdle: MediumPavilionCulet: NoneDepth 57.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €2,215 EUR|Low: €2,215 EUR|High: €5,033 EUR|Avg: €3,133 EUR|-4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1€2,215 EUR
Retailer 7€2,568 EUR
Retailer 8€2,664 EUR
Retailer 6€2,803 EUR
Retailer 3€2,993 EUR
Retailer 9€3,021 EUR
Retailer 2€3,369 EUR
Retailer 4€3,531 EUR
Retailer 5€4,825 EUR

34 data points across 9 retailers

11 retailers€2,215 EUR to €4,825 EUR

A
Cheapest Retailer
-
€2,215 EUR
A
Retailer 2
-
€2,568 EUR
View
A
Retailer 3
-
€2,664 EUR
View
A
Retailer 4
-
€2,803 EUR
View
A
Retailer 5
-
€2,993 EUR
View
B+
Retailer 6
-
€3,021 EUR
View
B+
Retailer 7
-
€3,369 EUR
View
B+
Retailer 8
-
€3,531 EUR
View
B
Retailer 9
-
€4,825 EUR
View
Retailer 10
-
€5,181 EUR
View
Price last confirmed 31 days ago
Most Expensive
NZ Jewellers
01749aa1-057d-4017-871f-461a30d1f7d5 · Sep 20
€5,393 EUR
$6,021 USD
View
Price last confirmed 46 days ago
10 more retailers have this diamond
Prices start from €2,215 EURSave up to €2,610 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
1.53ct Heart
€2,215 EUR