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Heart|Natural|GIA

1.02ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 6331608970

Certificate GIA 6331608970

Diamond specifications and retailer prices

From £736 GBP
As of November 6, 2026
Save £1,071 GBP (59%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,807 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.02ct natural heart diamond

This 1.02ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6331608970. Listed at 12 retailers as of November 4, 2026, with prices from £736 to £1,807, a £1,071 spread on the same certified stone. MOH London lists it at £1,807. 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

1.02
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6331608970
Dimensions5.76 × 5.47 × 3.79 mm
L/W Ratio1.05
Top View
5.76 mm5.47 mm1.02 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6331608970
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.2%

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 6
Current: £1,807 GBP|Low: £726 GBP|High: £1,828 GBP|Avg: £1,102 GBP|-1.2%
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 10£736 GBP
Retailer 12£917 GBP
Retailer 2£959 GBP
Retailer 11£989 GBP
Retailer 4£1,009 GBP
Retailer 13£1,011 GBP
Retailer 5£1,016 GBP
Retailer 7£1,021 GBP
Retailer 3£1,072 GBP
Retailer 8£1,112 GBP
Retailer 9£1,207 GBP
Retailer 6£1,372 GBP
MOH London£1,807 GBP

31 data points across 13 retailers

12 retailers£736 GBP to £1,807 GBP

A
Cheapest Retailer
-
£736 GBP
B+
Retailer 2
-
£917 GBP
View
A
Retailer 3
-
£959 GBP
View
Retailer 4
-
£989 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£1,011 GBP
View
B+
Retailer 6
-
£1,016 GBP
View
B+
Retailer 7
-
£1,021 GBP
View
B+
Retailer 8
-
£1,072 GBP
View
B+
Retailer 9
-
£1,112 GBP
View
B+
Retailer 10
-
£1,207 GBP
View
B+
Retailer 11
-
£1,372 GBP
View
Most Expensive
B
MOH London
A302E7282 · Nov 4
£1,807 GBP
View
11 more retailers have this diamond
Prices start from £736 GBPSave up to £1,071 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
1.02ct Heart
£736 GBP