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Heart|Natural|GIA

1.21ct E SI2 Heart Natural Diamond

EX • E/SI2 • GIA 6545807565

Certificate GIA 6545807565

Diamond specifications and retailer prices

From £1,371 GBP
As of November 6, 2026
Save £2,479 GBP (64%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,850 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545807565. Listed at 14 retailers as of November 5, 2026, with prices from £1,371 to £3,850, a £2,479 spread on the same certified stone. NZ Jewellers lists it at £3,850. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545807565
Dimensions6.52 × 7.31 × 4.28 mm
L/W Ratio1.12
Top View
6.52 mm7.31 mm1.21 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545807565
Side View
Table 58.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 58.6%

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 6
Current: £3,850 GBP|Low: £1,371 GBP|High: £4,156 GBP|Avg: £2,160 GBP|-7.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 7£1,371 GBP
Retailer 4£1,457 GBP
Retailer 5£1,663 GBP
Retailer 3£1,797 GBP
Retailer 6£1,842 GBP
Retailer 11£1,842 GBP
Retailer 2£1,919 GBP
Retailer 12£1,927 GBP
Retailer 13£1,945 GBP
Retailer 8£1,948 GBP
Retailer 14£2,114 GBP
Retailer 10£2,125 GBP
Retailer 9£3,217 GBP
NZ Jewellers£3,850 GBP

34 data points across 14 retailers

14 retailers£1,371 GBP to £3,850 GBP

A
Cheapest Retailer
-
£1,371 GBP
A
Retailer 2
-
£1,457 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,663 GBP
View
A
Retailer 4
-
£1,797 GBP
View
Retailer 5
-
£1,842 GBP
View
Price last confirmed 8 days ago
A
Retailer 6
-
£1,842 GBP
View
A
Retailer 7
-
£1,919 GBP
View
A
Retailer 8
-
£1,927 GBP
View
B+
Retailer 9
-
£1,945 GBP
View
A
Retailer 10
-
£1,948 GBP
View
B+
Retailer 11
-
£2,114 GBP
View
B+
Retailer 12
-
£2,125 GBP
View
B
Retailer 13
-
£3,217 GBP
View
Most Expensive
B
NZ Jewellers
9ec0e935-9cb7-420d-912f-7a6059c482f9 · Nov 5
£3,850 GBP
$5,153 USD
View
13 more retailers have this diamond
Prices start from £1,371 GBPSave up to £2,479 GBP

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
1.21ct Heart
£1,371 GBP