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Heart|Natural|GIA

1.21ct D IF Heart Natural Diamond

EX • D/IF • GIA 1533587525

Certificate GIA 1533587525

Diamond specifications and retailer prices

From £5,597 GBP
As of November 5, 2026
Save £5,700 GBP (50%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £11,297 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1533587525. Listed at 9 retailers as of November 5, 2026, with prices from £5,597 to £11,297, a £5,700 spread on the same certified stone. NZ Jewellers lists it at £11,297. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.1°
OriginNatural
Grading LabGIA
CertificateGIA 1533587525
Dimensions6.48 × 7.20 × 4.31 mm
L/W Ratio1.11
Girdle conditionFaceted
Top View
6.48 mm7.20 mm1.21 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1533587525
Side View
Table 59.0%CrownGirdle: MED-VTKPavilion 40.1°Culet: NoneDepth 59.8%

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 5
Current: £11,297 GBP|Low: £5,178 GBP|High: £12,522 GBP|Avg: £7,307 GBP|-9.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 6£5,597 GBP
Retailer 5£5,648 GBP
Retailer 7£6,095 GBP
Retailer 2£6,300 GBP
Retailer 9£6,772 GBP
Retailer 8£6,826 GBP
Retailer 4£7,056 GBP
Retailer 3£9,388 GBP
NZ Jewellers£11,297 GBP

43 data points across 9 retailers

9 retailers£5,597 GBP to £11,297 GBP

A
Cheapest Retailer
-
£5,597 GBP
A
Retailer 2
-
£5,648 GBP
View
Final sale: no returns
A
Retailer 3
-
£6,095 GBP
View
A
Retailer 4
-
£6,300 GBP
View
B+
Retailer 5
-
£6,772 GBP
View
B+
Retailer 6
-
£6,826 GBP
View
B+
Retailer 7
-
£7,056 GBP
View
B+
Retailer 8
-
£9,388 GBP
View
Most Expensive
B
NZ Jewellers
74d6ade0-1e43-4650-817a-66424adad8ea · Nov 5
£11,297 GBP
$15,205 USD
View
8 more retailers have this diamond
Prices start from £5,597 GBPSave up to £5,700 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
£5,597 GBP