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Heart|Natural|GIA

1.20ct K SI2 Heart Natural Diamond

VG • K/SI2 • GIA 1313069156

Certificate GIA 1313069156

Diamond specifications and retailer prices

From $2,142 AUD
As of November 6, 2026
Save $2,904 AUD (58%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,046 AUD at MOH London · As of November 4, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1313069156. Listed at 11 retailers as of November 4, 2026, with prices from $2,142 to $5,046, a $2,904 spread on the same certified stone. MOH London lists it at $5,046. 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
K
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1313069156
Dimensions5.74 × 5.69 × 4.06 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
5.74 mm5.69 mm1.20 ctK / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1313069156
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 71.3%

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: $5,046 AUD|Low: $2,123 AUD|High: $5,113 AUD|Avg: $3,192 AUD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 8$2,142 AUD
Retailer 10$2,786 AUD
Retailer 9$2,888 AUD
Retailer 5$2,953 AUD
Retailer 7$2,976 AUD
Retailer 12$2,991 AUD
Retailer 3$3,013 AUD
Retailer 11$3,088 AUD
Retailer 2$3,135 AUD
Retailer 4$3,480 AUD
Retailer 6$3,922 AUD
MOH London$5,046 AUD

32 data points across 12 retailers

11 retailers$2,142 AUD to $5,046 AUD

B+
Cheapest Retailer
-
$2,142 AUD
B+
Retailer 2
-
$2,608 AUD
View
B+
Retailer 3
-
$2,786 AUD
View
Retailer 4
-
$2,888 AUD
View
Price last confirmed 30 days ago
B+
Retailer 5
-
$2,953 AUD
View
B
Retailer 6
-
$2,976 AUD
View
B
Retailer 7
-
$3,013 AUD
View
B
Retailer 8
-
$3,088 AUD
View
B
Retailer 9
-
$3,135 AUD
View
B
Retailer 10
-
$3,922 AUD
View
Most Expensive
B
MOH London
ED669A54F · Nov 4
$5,046 AUD
£2,730 GBP
View
10 more retailers have this diamond
Prices start from $2,142 AUDSave up to $2,904 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.

B+
1.20ct Heart
$2,142 AUD