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Heart|Natural|HRD

1.21ct J SI2 Heart Natural Diamond

ID • J/SI2 • HRD 250000289413

Certificate HRD 250000289413

Diamond specifications and retailer prices

From £1,636 GBP
$2,190 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: £1,636 GBP at Brilliant Earth
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 Brilliant Earth

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 250000289413. Listed at a single retailer as of November 6, 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
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 250000289413
Dimensions7.51 × 6.37 × 4.36 mm
L/W Ratio1.18
Top View
7.51 mm6.37 mm1.21 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 250000289413
Side View
Table 61.0%CrownGirdle: MediumPavilionCulet: NoneDepth 58.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £1,636 GBP|Low: £1,636 GBP|High: £1,636 GBP|Avg: £1,636 GBP
December 30, 2025
Brilliant Earth£1,636 GBP

4 data points across 1 retailer

1 retailer

B
Brilliant Earth
16559394A · Nov 6
£1,636 GBP
$2,190 USD
View

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
£1,636 GBP