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Heart|Natural|GIA

1.21ct E SI2 Heart Natural Diamond

EX • E/SI2 • GIA 6562164617

Certificate GIA 6562164617

Diamond specifications and retailer prices

From £1,993 GBP
As of November 6, 2026
Save £1,774 GBP (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,014 GBP at NZ Jewellers · As of September 30, 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 6562164617. Listed at 13 retailers as of November 4, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceNone
Crown angle36.89°
Pavilion angle44.41°
OriginNatural
Grading LabGIA
CertificateGIA 6562164617
Dimensions6.38 × 7.31 × 4.53 mm
L/W Ratio1.15
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.38 mm7.31 mm1.21 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6562164617
Side View
Table 59.0%Crown 36.89°Girdle: Very ThickPavilion 44.41°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,993 GBP|Low: £1,662 GBP|High: £3,899 GBP|Avg: £2,489 GBP|-3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1£1,993 GBP
Retailer 7£2,084 GBP
Retailer 2£2,123 GBP
Retailer 8£2,304 GBP
Retailer 4£2,331 GBP
Retailer 5£2,355 GBP
Retailer 3£2,590 GBP
Retailer 6£3,766 GBP

44 data points across 8 retailers

13 retailers£1,993 GBP to £3,766 GBP

A
Cheapest Retailer
-
£1,993 GBP
B+
Retailer 2
-
£2,084 GBP
View
Final sale: no returns
B+
Retailer 3
-
£2,123 GBP
View
Retailer 4
-
£2,304 GBP
View
Price last confirmed 36 days ago
Retailer 5
-
£2,304 GBP
View
Price last confirmed 29 days ago
B+
Retailer 6
-
£2,331 GBP
View
B+
Retailer 7
-
£2,355 GBP
View
Retailer 8
-
£2,392 GBP
View
Price last confirmed 36 days ago
B+
Retailer 9
-
£2,590 GBP
View
Retailer 10
-
£2,658 GBP
View
Price last confirmed 38 days ago
Retailer 11
-
£2,658 GBP
View
Price last confirmed 52 days ago
B
Retailer 12
-
£3,766 GBP
View
Most Expensive
NZ Jewellers
e5a798fc-8553-4d46-93e8-c1bc68cbe838 · Sep 30
£4,014 GBP
$5,373 USD
View
Price last confirmed 37 days ago
12 more retailers have this diamond
Prices start from £1,993 GBPSave up to £1,774 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
£1,993 GBP