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Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

GD • J/SI1 • GIA 5221061761

Certificate GIA 5221061761

Diamond specifications and retailer prices

From £1,248 GBP
As of November 6, 2026
Save £1,544 GBP (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,791 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5221061761. Listed at 19 retailers as of November 1, 2026, with prices from £1,248 to £2,791, a £1,544 spread on the same certified stone. MOH London lists it at £2,791. 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

1.20
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5221061761
Dimensions6.15 × 5.79 × 3.91 mm
L/W Ratio1.06
Top View
6.15 mm5.79 mm1.20 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5221061761
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.6%

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: £2,791 GBP|Low: £1,248 GBP|High: £3,313 GBP|Avg: £1,960 GBP|-15.8%
MOH London
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
Retailer 17
Retailer 18
November 6, 2026
Retailer 2£1,248 GBP
Retailer 5£1,304 GBP
Retailer 7£1,319 GBP
Retailer 8£1,332 GBP
Retailer 4£1,357 GBP
Retailer 16£1,476 GBP
Retailer 15£1,490 GBP
Retailer 3£1,644 GBP
Retailer 9£1,644 GBP
Retailer 17£1,664 GBP
Retailer 18£1,668 GBP
Retailer 6£1,696 GBP
Retailer 12£1,731 GBP
Retailer 13£1,945 GBP
Retailer 11£2,030 GBP
Retailer 10£2,090 GBP
Retailer 14£2,288 GBP
MOH London£2,791 GBP

41 data points across 18 retailers

19 retailers£1,248 GBP to £2,791 GBP

A
Cheapest Retailer
-
£1,248 GBP
B+
Retailer 2
-
£1,304 GBP
View
B+
Retailer 3
-
£1,319 GBP
View
B+
Retailer 4
-
£1,332 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,357 GBP
View
B+
Retailer 6
-
£1,476 GBP
View
B+
Retailer 7
-
£1,490 GBP
View
B
Retailer 8
-
£1,644 GBP
View
B
Retailer 9
-
£1,644 GBP
View
B
Retailer 10
-
£1,664 GBP
View
B
Retailer 11
-
£1,668 GBP
View
B
Retailer 12
-
£1,696 GBP
View
B
Retailer 13
-
£1,731 GBP
View
Retailer 14
-
£1,859 GBP
View
Price last confirmed 15 days ago
B
Retailer 15
-
£1,945 GBP
View
B
Retailer 16
-
£2,030 GBP
View
Retailer 17
-
£2,090 GBP
View
Price last confirmed 32 days ago
B
Retailer 18
-
£2,288 GBP
View
Most Expensive
B
MOH London
A8FADB89F · Nov 1
£2,791 GBP
View
18 more retailers have this diamond
Prices start from £1,248 GBPSave up to £1,544 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
1.20ct Heart
£1,248 GBP