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Heart|Natural|GIA

1.30ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 6415809220

Certificate GIA 6415809220

Diamond specifications and retailer prices

From £2,883 GBP
As of November 6, 2026
Save £2,861 GBP (50%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,744 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.3ct natural heart diamond

This 1.3ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6415809220. Listed at 16 retailers as of November 4, 2026, with prices from £2,883 to £5,744, a £2,861 spread on the same certified stone. MOH London lists it at £5,744. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.30
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6415809220
Dimensions6.37 × 5.62 × 4.13 mm
L/W Ratio1.13
Top View
6.37 mm5.62 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6415809220
Side View
Table 63.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 73.5%

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: £5,744 GBP|Low: £2,772 GBP|High: £5,830 GBP|Avg: £3,732 GBP|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9£2,883 GBP
Retailer 6£2,976 GBP
Retailer 7£3,024 GBP
Retailer 10£3,105 GBP
Retailer 2£3,508 GBP
Retailer 5£3,563 GBP
Retailer 8£3,645 GBP
Retailer 3£4,069 GBP
Retailer 4£4,412 GBP
MOH London£5,744 GBP

39 data points across 10 retailers

16 retailers£2,883 GBP to £5,744 GBP

B+
Cheapest Retailer
-
£2,883 GBP
B
Retailer 2
-
£2,976 GBP
View
B
Retailer 3
-
£3,024 GBP
View
Final sale: no returns
B+
Retailer 4
-
£3,104 GBP
View
B+
Retailer 5
-
£3,105 GBP
View
B
Retailer 6
-
£3,257 GBP
View
B
Retailer 7
-
£3,508 GBP
View
B
Retailer 8
-
£3,541 GBP
View
B
Retailer 9
-
£3,541 GBP
View
B
Retailer 10
-
£3,563 GBP
View
Retailer 11
-
£3,645 GBP
View
Price last confirmed 29 days ago
B
Retailer 12
-
£3,661 GBP
View
Retailer 13
-
£3,993 GBP
View
Price last confirmed 23 days ago
B
Retailer 14
-
£4,069 GBP
View
B
Retailer 15
-
£4,412 GBP
View
Most Expensive
B
MOH London
2B896FE34 · Nov 4
£5,744 GBP
View
15 more retailers have this diamond
Prices start from £2,883 GBPSave up to £2,861 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+
1.30ct Heart
£2,883 GBP