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Heart|Natural|GIA

1.20ct E SI1 Heart Natural Diamond

VG • E/SI1 • GIA 1435701902

Certificate GIA 1435701902

Diamond specifications and retailer prices

From $5,747 AUD
As of November 6, 2026
Save $5,707 AUD (50%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,454 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1435701902. Listed at 18 retailers as of November 4, 2026, with prices from $5,747 to $11,454, a $5,707 spread on the same certified stone. MOH London lists it at $11,454. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1435701902
Dimensions6.35 × 5.58 × 3.93 mm
L/W Ratio1.14
Culet sizeNone
Top View
6.35 mm5.58 mm1.20 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1435701902
Side View
Table 67.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 70.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $11,454 AUD|Low: $5,792 AUD|High: $11,622 AUD|Avg: $8,210 AUD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$5,792 AUD
Retailer 8$5,919 AUD
Retailer 9$6,028 AUD
Retailer 7$6,532 AUD
Retailer 3$7,099 AUD
Retailer 10$7,268 AUD
Retailer 2$8,114 AUD
Retailer 4$8,798 AUD
Retailer 6$10,961 AUD
MOH London$11,454 AUD

42 data points across 10 retailers

18 retailers$5,747 AUD to $11,454 AUD

B
Cheapest Retailer
-
$5,747 AUD
B
Retailer 2
-
$5,792 AUD
View
B
Retailer 3
-
$5,919 AUD
View
B
Retailer 4
-
$6,028 AUD
View
Final sale: no returns
B
Retailer 5
-
$6,185 AUD
View
B
Retailer 6
-
$6,191 AUD
View
B
Retailer 7
-
$6,491 AUD
View
Retailer 8
-
$6,532 AUD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$7,059 AUD
View
B
Retailer 10
-
$7,059 AUD
View
B
Retailer 11
-
$7,099 AUD
View
Retailer 12
-
$7,268 AUD
View
Price last confirmed 28 days ago
B
Retailer 13
-
$7,292 AUD
View
Retailer 14
-
$7,961 AUD
View
Price last confirmed 22 days ago
B
Retailer 15
-
$8,114 AUD
View
B
Retailer 16
-
$8,798 AUD
View
Retailer 17
-
$10,961 AUD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
20CDB8A99 · Nov 4
$11,454 AUD
£6,197 GBP
View
17 more retailers have this diamond
Prices start from $5,747 AUDSave up to $5,707 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
$5,747 AUD