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Heart|Natural|GIA

1.01ct J SI1 Heart Natural Diamond

GD • J/SI1 • GIA 6431635587

Certificate GIA 6431635587

Diamond specifications and retailer prices

From £1,123 GBP
As of November 6, 2026
Save £1,696 GBP (60%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,819 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.01ct natural heart diamond

This 1.01ct 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 6431635587. Listed at 17 retailers as of November 2, 2026, with prices from £1,123 to £2,819, a £1,696 spread on the same certified stone. MOH London lists it at £2,819. 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

1.01
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6431635587
Dimensions6.27 × 5.31 × 3.57 mm
L/W Ratio1.18
Top View
6.27 mm5.31 mm1.01 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6431635587
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.2%

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: £2,819 GBP|Low: £1,238 GBP|High: £2,853 GBP|Avg: £1,735 GBP
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
November 6, 2026
Retailer 6£1,295 GBP
Retailer 12£1,317 GBP
Retailer 8£1,360 GBP
Retailer 4£1,406 GBP
Retailer 10£1,458 GBP
Retailer 11£1,485 GBP
Retailer 9£1,490 GBP
Retailer 3£1,505 GBP
Retailer 13£1,763 GBP
Retailer 7£1,963 GBP
Retailer 5£1,978 GBP
Retailer 2£2,185 GBP
MOH London£2,819 GBP

45 data points across 13 retailers

17 retailers£1,123 GBP to £2,819 GBP

B+
Cheapest Retailer
-
£1,123 GBP
B+
Retailer 2
-
£1,295 GBP
View
B
Retailer 3
-
£1,317 GBP
View
Retailer 4
-
£1,360 GBP
View
Price last confirmed 18 days ago
B
Retailer 5
-
£1,367 GBP
View
B
Retailer 6
-
£1,367 GBP
View
B
Retailer 7
-
£1,406 GBP
View
B
Retailer 8
-
£1,412 GBP
View
Retailer 9
-
£1,458 GBP
View
Price last confirmed 8 days ago
B
Retailer 10
-
£1,485 GBP
View
Final sale: no returns
B
Retailer 11
-
£1,490 GBP
View
B
Retailer 12
-
£1,505 GBP
View
B
Retailer 13
-
£1,763 GBP
View
B
Retailer 14
-
£1,963 GBP
View
Retailer 15
-
£1,978 GBP
View
Price last confirmed 31 days ago
B
Retailer 16
-
£2,185 GBP
View
Most Expensive
C
MOH London
14AE9F325 · Nov 2
£2,819 GBP
View
16 more retailers have this diamond
Prices start from £1,123 GBPSave up to £1,696 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+
1.01ct Heart
£1,123 GBP