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Heart|Natural|GIA

1.21ct G SI1 Heart Natural Diamond

VG • G/SI1 • GIA 6542374552

Certificate GIA 6542374552

Diamond specifications and retailer prices

From £2,124 GBP
As of November 6, 2026
Save £2,436 GBP (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,560 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 G 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 6542374552. Listed at 17 retailers as of November 5, 2026, with prices from £2,124 to £4,560, a £2,436 spread on the same certified stone. NZ Jewellers lists it at £4,560. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542374552
Dimensions7.28 × 6.59 × 4.15 mm
L/W Ratio1.10
Top View
7.28 mm6.59 mm1.21 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542374552
Side View
Table 61.0%CrownGirdle: ThickPavilionCulet: NoneDepth 57.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,560 GBP|Low: £2,124 GBP|High: £4,560 GBP|Avg: £2,888 GBP
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 4£2,124 GBP
Retailer 5£2,227 GBP
Retailer 3£2,371 GBP
Retailer 14£2,371 GBP
Retailer 11£2,462 GBP
Retailer 2£2,539 GBP
Retailer 12£2,689 GBP
Retailer 8£2,708 GBP
Retailer 13£2,736 GBP
Retailer 6£2,774 GBP
Retailer 7£3,047 GBP
Retailer 9£3,195 GBP
Retailer 10£4,365 GBP
NZ Jewellers£4,560 GBP

31 data points across 14 retailers

17 retailers£2,124 GBP to £4,560 GBP

B+
Cheapest Retailer
-
£2,124 GBP
B+
Retailer 2
-
£2,222 GBP
View
Retailer 3
-
£2,227 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£2,371 GBP
View
Retailer 5
-
£2,371 GBP
View
Price last confirmed 9 days ago
B+
Retailer 6
-
£2,386 GBP
View
B+
Retailer 7
-
£2,462 GBP
View
B+
Retailer 8
-
£2,539 GBP
View
B
Retailer 9
-
£2,689 GBP
View
B
Retailer 10
-
£2,708 GBP
View
B
Retailer 11
-
£2,736 GBP
View
Retailer 12
-
£2,774 GBP
View
Price last confirmed 39 days ago
Retailer 13
-
£2,965 GBP
View
Price last confirmed 15 days ago
B
Retailer 14
-
£3,047 GBP
View
B
Retailer 15
-
£3,195 GBP
View
B
Retailer 16
-
£4,365 GBP
View
Most Expensive
B
NZ Jewellers
72be4621-ea94-4ed2-973d-2c86eee05f1b · Nov 5
£4,560 GBP
$6,104 USD
View
16 more retailers have this diamond
Prices start from £2,124 GBPSave up to £2,436 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.

B+
1.21ct Heart
£2,124 GBP