CaratHunter
Plans
Heart|Natural|GIA

1.21ct H SI1 Heart Natural Diamond

VG • H/SI1 • GIA 2243080054

Certificate GIA 2243080054

Diamond specifications and retailer prices

From £1,377 GBP
As of November 6, 2026
Save £2,615 GBP (66%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,992 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2243080054. Listed at 16 retailers as of November 5, 2026, with prices from £1,377 to £3,992, a £2,615 spread on the same certified stone. NZ Jewellers lists it at £3,992. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2243080054
Dimensions6.49 × 7.32 × 4.28 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.49 mm7.32 mm1.21 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2243080054
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.5%

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: £3,992 GBP|Low: £1,357 GBP|High: £4,148 GBP|Avg: £2,181 GBP|-3.8%
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 4£1,377 GBP
Retailer 2£1,636 GBP
Retailer 16£1,726 GBP
Retailer 13£1,759 GBP
Retailer 5£1,762 GBP
Retailer 11£1,795 GBP
Retailer 9£1,852 GBP
Retailer 15£1,890 GBP
Retailer 10£1,909 GBP
Retailer 7£1,923 GBP
Retailer 8£2,074 GBP
Retailer 6£2,114 GBP
Retailer 12£2,330 GBP
Retailer 3£2,864 GBP
Retailer 14£3,336 GBP
NZ Jewellers£3,992 GBP

22 data points across 16 retailers

16 retailers£1,377 GBP to £3,992 GBP

A
Cheapest Retailer
-
£1,377 GBP
B+
Retailer 2
-
£1,636 GBP
View
B+
Retailer 3
-
£1,726 GBP
View
B+
Retailer 4
-
£1,759 GBP
View
B+
Retailer 5
-
£1,762 GBP
View
Final sale: no returns
B+
Retailer 6
-
£1,795 GBP
View
B+
Retailer 7
-
£1,852 GBP
View
B+
Retailer 8
-
£1,890 GBP
View
B+
Retailer 9
-
£1,909 GBP
View
B+
Retailer 10
-
£1,923 GBP
View
B+
Retailer 11
-
£2,114 GBP
View
Retailer 12
-
£2,250 GBP
View
Price last confirmed 31 days ago
B+
Retailer 13
-
£2,330 GBP
View
B
Retailer 14
-
£2,864 GBP
View
B
Retailer 15
-
£3,336 GBP
View
Most Expensive
B
NZ Jewellers
fe879066-c692-49e8-861d-bba6fb3cff1f · Nov 5
£3,992 GBP
$5,343 USD
View
15 more retailers have this diamond
Prices start from £1,377 GBPSave up to £2,615 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
£1,377 GBP