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Heart|Natural|GIA

1.20ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 1232951516

Certificate GIA 1232951516

Diamond specifications and retailer prices

From $2,711 AUD
As of November 6, 2026
Save $1,612 AUD (37%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,323 AUD at MOH London · As of November 7, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1232951516. Listed at 6 retailers as of November 6, 2026, with prices from $2,711 to $4,323, a $1,612 spread on the same certified stone. MOH London lists it at $4,323. 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

1.20
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.61°
OriginNatural
Grading LabGIA
CertificateGIA 1232951516
Dimensions6.71 × 7.36 × 4.02 mm
L/W Ratio1.10
Top View
6.71 mm7.36 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232951516
Side View
Table 57.0%Crown 37.61°Girdle: STK-THKPavilionCulet: NoneDepth 54.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,323 AUD|Low: $2,678 AUD|High: $5,185 AUD|Avg: $3,444 AUD|-15.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 5$2,711 AUD
Retailer 4$2,730 AUD
Retailer 2$2,745 AUD
Retailer 6$2,969 AUD
Retailer 3$3,369 AUD
MOH London$4,323 AUD

45 data points across 6 retailers

6 retailers$2,711 AUD to $4,323 AUD

A
Cheapest Retailer
-
$2,711 AUD
A
Retailer 2
-
$2,730 AUD
View
A
Retailer 3
-
$2,745 AUD
View
Retailer 4
-
$2,969 AUD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
$3,369 AUD
View
Most Expensive
B+
MOH London
3375B755D · Nov 7
$4,323 AUD
£2,339 GBP
View
5 more retailers have this diamond
Prices start from $2,711 AUDSave up to $1,612 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
1.20ct Heart
$2,711 AUD