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Heart|Natural|GIA

1.21ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6531045921

Certificate GIA 6531045921

Diamond specifications and retailer prices

From €1,614 EUR
$1,810 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: €1,614 EUR at The Diamond Guys
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at The Diamond Guys

About this 1.21ct natural heart diamond

This 1.21ct 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 6531045921. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.21
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.52°
Pavilion angle37.86°
OriginNatural
Grading LabGIA
CertificateGIA 6531045921
Dimensions7.37 × 6.29 × 3.72 mm
L/W Ratio1.17
Top View
7.37 mm6.29 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531045921
Side View
Table 59.0%Crown 37.52°Girdle: MED-THKPavilion 37.86°Culet: NoneDepth 59.1%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: €1,499 EUR|Low: €1,007 EUR|High: €2,718 EUR|Avg: €1,747 EUR|-8.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
The Diamond Guys
September 15, 2026
Retailer 10€1,007 EUR
Retailer 1€1,499 EUR
Retailer 2€1,510 EUR
Retailer 5€1,574 EUR
Retailer 6€1,611 EUR
The Diamond Guys€1,614 EUR
Retailer 3€1,685 EUR
Retailer 4€1,708 EUR
Retailer 8€1,989 EUR
Retailer 9€2,081 EUR
Retailer 7€2,456 EUR

75 data points across 11 retailers

1 retailer

B+
The Diamond Guys
1865867418 · Nov 2
€1,614 EUR
$1,810 USD
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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.

B+
1.21ct Heart
€1,614 EUR