Heart|Lab Grown|GIA

1.21ct D IF Heart Lab Grown Diamond

EX • D/IF • GIA 7533104556

Certificate GIA 7533104556

Diamond specifications and retailer prices

From £476 GBP
As of November 4, 2026
Save £1,916 GBP (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,267 GBP at Do Amore Diamonds · As of November 3, 2026
View at Do Amore Diamonds

About this 1.21ct lab-grown heart diamond

This 1.21ct lab-grown 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 7533104556. Listed at 19 retailers as of November 3, 2026, with a 403% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
OriginLab Grown
Grading LabGIA
CertificateGIA 7533104556
Dimensions6.55 × 7.12 × 4.38 mm
L/W Ratio1.09
Girdle conditionFaceted
Cert comments
This is a man-made diamond.
Key to symbols
Minor Details of Polish
Top View
6.55 mm7.12 mm1.21 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7533104556
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.4%

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 4
Current: £476 GBP|Low: £462 GBP|High: £2,456 GBP|Avg: £1,188 GBP|-1.2%
Retailer 1
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 4, 2026
Retailer 1£476 GBP
Retailer 9£518 GBP
Retailer 12£532 GBP
Retailer 11£552 GBP
Retailer 5£685 GBP
Retailer 4£781 GBP
Retailer 2£844 GBP
Retailer 3£884 GBP
Retailer 14£1,121 GBP
Retailer 8£1,692 GBP
Retailer 7£1,713 GBP
Retailer 6£2,055 GBP
Retailer 10£2,182 GBP
Retailer 13£2,392 GBP

39 data points across 14 retailers

19 retailers£476 GBP to £2,392 GBP

A
Cheapest Retailer
-
£476 GBP
A
Retailer 2
-
£518 GBP
View
A
Retailer 3
-
£532 GBP
View
Final sale: no returns
A
Retailer 4
-
£552 GBP
View
B+
Retailer 5
-
£560 GBP
View
B+
Retailer 6
-
£639 GBP
View
B+
Retailer 7
-
£685 GBP
View
B+
Retailer 8
-
£781 GBP
View
B+
Retailer 9
-
£844 GBP
View
B+
Retailer 10
-
£884 GBP
View
B+
Retailer 11
-
£1,121 GBP
View
B
Retailer 12
-
£1,502 GBP
View
B
Retailer 13
-
£1,692 GBP
View
B
Retailer 14
-
£1,713 GBP
View
B
Retailer 15
-
£1,735 GBP
View
Retailer 16
-
£2,055 GBP
View
Price last confirmed 28 days ago
B
Retailer 17
-
£2,182 GBP
View
B
Retailer 18
-
£2,392 GBP
View
Most Expensive
Do Amore Diamonds
32-7533104556 · Nov 3
£3,267 GBP
$4,410 USD
View
Price under review
18 more retailers have this diamond
Prices start from £476 GBPSave up to £1,916 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
£476 GBP