Heart|Natural|GIA

1.53ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 2528505619

Certificate GIA 2528505619

Diamond specifications and retailer prices

From €3,507 EUR
As of November 6, 2026
Save €3,994 EUR (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €7,899 EUR at NZ Jewellers · As of October 18, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2528505619. Listed at 13 retailers as of November 4, 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2528505619
Dimensions6.79 × 7.82 × 4.74 mm
L/W Ratio1.15
Top View
6.79 mm7.82 mm1.53 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2528505619
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: €3,550 EUR|Low: €3,473 EUR|High: €7,613 EUR|Avg: €4,597 EUR|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3€3,507 EUR
Retailer 1€3,550 EUR
Retailer 5€3,730 EUR
Retailer 8€3,763 EUR
Retailer 9€3,979 EUR
Retailer 4€4,429 EUR
Retailer 7€4,760 EUR
Retailer 6€5,536 EUR
Retailer 2€7,501 EUR

36 data points across 9 retailers

13 retailers€3,507 EUR to €7,501 EUR

A
Cheapest Retailer
-
€3,507 EUR
A
Retailer 2
-
€3,550 EUR
View
Retailer 3
-
€3,730 EUR
View
Price last confirmed 15 days ago
A
Retailer 4
-
€3,763 EUR
View
Final sale: no returns
A
Retailer 5
-
€3,979 EUR
View
A
Retailer 6
-
€4,331 EUR
View
A
Retailer 7
-
€4,429 EUR
View
Retailer 8
-
€4,455 EUR
View
Price last confirmed 21 days ago
Retailer 9
-
€4,723 EUR
View
Price last confirmed 21 days ago
Retailer 10
-
€4,723 EUR
View
Price last confirmed 20 days ago
Retailer 11
-
€4,760 EUR
View
Price last confirmed 29 days ago
B+
Retailer 12
-
€7,501 EUR
View
Most Expensive
NZ Jewellers
ef2d0258-2570-4509-9514-7eac59059459 · Oct 18
€7,899 EUR
$8,819 USD
View
Price last confirmed 19 days ago
12 more retailers have this diamond
Prices start from €3,507 EURSave up to €3,994 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
€3,507 EUR