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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 $1,434 AUD
As of November 6, 2026
Save $2,086 AUD (59%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,519 AUD 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 $1,434 to $3,519, a $2,086 spread on the same certified stone. MOH London lists it at $3,519. 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: $3,519 AUD|Low: $1,415 AUD|High: $3,562 AUD|Avg: $2,148 AUD|-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$1,434 AUD
Retailer 12$1,786 AUD
Retailer 2$1,869 AUD
Retailer 11$1,927 AUD
Retailer 4$1,965 AUD
Retailer 13$1,969 AUD
Retailer 5$1,979 AUD
Retailer 7$1,990 AUD
Retailer 3$2,088 AUD
Retailer 8$2,166 AUD
Retailer 9$2,350 AUD
Retailer 6$2,674 AUD
MOH London$3,519 AUD

31 data points across 13 retailers

12 retailers$1,434 AUD to $3,519 AUD

A
Cheapest Retailer
-
$1,434 AUD
B+
Retailer 2
-
$1,786 AUD
View
A
Retailer 3
-
$1,869 AUD
View
Retailer 4
-
$1,927 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,969 AUD
View
B+
Retailer 6
-
$1,979 AUD
View
B+
Retailer 7
-
$1,990 AUD
View
B+
Retailer 8
-
$2,088 AUD
View
B+
Retailer 9
-
$2,166 AUD
View
B+
Retailer 10
-
$2,350 AUD
View
B+
Retailer 11
-
$2,674 AUD
View
Most Expensive
B
MOH London
A302E7282 · Nov 4
$3,519 AUD
£1,904 GBP
View
11 more retailers have this diamond
Prices start from $1,434 AUDSave up to $2,086 AUD

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
$1,434 AUD