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Heart|Natural|GIA

1.03ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6551441071

Certificate GIA 6551441071

Diamond specifications and retailer prices

From €1,233 EUR
As of November 4, 2026
Save €404 EUR (25%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €1,637 EUR at GemTrove · As of November 4, 2026
View at GemTrove

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 6551441071. Listed at 7 retailers as of November 4, 2026, with prices from €1,233 to €1,637, a €404 spread on the same certified stone. GemTrove lists it at €1,637. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551441071
Dimensions6.42 × 6.95 × 4.13 mm
L/W Ratio1.08
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Needle
Top View
6.42 mm6.95 mm1.03 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551441071
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.4%

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 4
Current: €1,637 EUR|Low: €1,156 EUR|High: €1,713 EUR|Avg: €1,419 EUR
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 4€1,233 EUR
Retailer 3€1,238 EUR
Retailer 5€1,250 EUR
Retailer 2€1,342 EUR
Retailer 7€1,399 EUR
Retailer 6€1,490 EUR
GemTrove€1,637 EUR

40 data points across 7 retailers

7 retailers€1,233 EUR to €1,637 EUR

A
Cheapest Retailer
-
€1,233 EUR
Final sale: no returns
A
Retailer 2
-
€1,238 EUR
View
A
Retailer 3
-
€1,250 EUR
View
A
Retailer 4
-
€1,342 EUR
View
A
Retailer 5
-
€1,399 EUR
View
B+
Retailer 6
-
€1,490 EUR
View
Most Expensive
B+
GemTrove
GT-N-01268903-98 · Nov 4
€1,637 EUR
A$2,838 AUD
View
6 more retailers have this diamond
Prices start from €1,233 EURSave up to €404 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
€1,233 EUR