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Heart|Natural|GIA

1.03ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 5526579552

Certificate GIA 5526579552

Diamond specifications and retailer prices

From €1,403 EUR
As of November 4, 2026
Save €348 EUR (20%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €1,751 EUR at B2C Jewels · As of November 4, 2026
View at B2C Jewels

About this 1.03ct natural heart diamond

This 1.03ct natural heart sits in the classic one-carat band, graded J 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 5526579552. Listed at 2 retailers as of November 4, 2026, with prices from €1,403 to €1,751, a €348 spread on the same certified stone. B2C Jewels lists it at €1,751. 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

1.03
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.77°
Pavilion angle39.64°
OriginNatural
Grading LabGIA
CertificateGIA 5526579552
Dimensions6.04 × 6.97 × 4.14 mm
L/W Ratio1.15
Top View
6.04 mm6.97 mm1.03 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5526579552
Side View
Table 60.0%Crown 37.77°Girdle: STK-THKPavilion 39.64°Culet: NoneDepth 59.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: €1,751 EUR|Low: €1,355 EUR|High: €1,751 EUR|Avg: €1,563 EUR|+6.2%
B2C Jewels
Retailer 2
November 4, 2026
Retailer 2€1,403 EUR
B2C Jewels€1,751 EUR

43 data points across 2 retailers

2 retailers€1,403 EUR to €1,751 EUR

A
Cheapest Retailer
-
€1,403 EUR
Most Expensive
B
B2C Jewels
31282684 · Nov 4
€1,751 EUR
$1,973 USD
View
1 more retailer has this diamond
Prices start from €1,403 EURSave up to €348 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
1.03ct Heart
€1,403 EUR