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Heart|Natural|GIA

1.20ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 7546617126

Certificate GIA 7546617126

Diamond specifications and retailer prices

From $3,922 AUD
As of November 5, 2026
Save $569 AUD (13%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,465 AUD at Queensmith · As of October 9, 2026
View at Queensmith

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7546617126. Listed at 19 retailers as of November 5, 2026, with a relatively tight 15% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7546617126
Dimensions6.76 × 7.36 × 4.20 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural
Top View
6.76 mm7.36 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 7546617126
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.0%

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 5
Current: $8,465 AUD|Low: $3,334 AUD|High: $8,465 AUD|Avg: $4,791 AUD|+0.8%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 5, 2026
Retailer 5$3,334 AUD
Retailer 11$3,617 AUD
Retailer 6$3,740 AUD
Retailer 2$3,922 AUD
Retailer 18$4,061 AUD
Retailer 3$4,164 AUD
Retailer 4$4,170 AUD
Retailer 17$4,420 AUD
Retailer 7$4,491 AUD
Retailer 8$4,628 AUD
Retailer 12$4,635 AUD
Retailer 9$4,679 AUD
Retailer 14$4,743 AUD
Retailer 10$4,788 AUD
Retailer 13$5,127 AUD
Retailer 15$5,330 AUD
Retailer 16$7,481 AUD
Queensmith$8,465 AUD

18 data points across 18 retailers

19 retailers$3,922 AUD to $4,491 AUD

Retailer 1
-
$3,334 AUD
Price last confirmed 36 days ago
B+
Retailer 2
-
$3,922 AUD
View
Retailer 3
-
$4,007 AUD
View
Price last confirmed 37 days ago
B
Retailer 4
-
$4,164 AUD
View
Retailer 5
-
$4,420 AUD
View
Price last confirmed 46 days ago
Retailer 6
-
$4,420 AUD
View
Price last confirmed 37 days ago
B+
Retailer 7
-
$4,491 AUD
View
Retailer 8
-
$4,590 AUD
View
Price last confirmed 37 days ago
Retailer 9
-
$4,628 AUD
View
Price last confirmed 29 days ago
Retailer 10
-
$4,679 AUD
View
Price last confirmed 29 days ago
Retailer 11
-
$4,743 AUD
View
Price last confirmed 35 days ago
Retailer 12
-
$4,788 AUD
View
Price last confirmed 29 days ago
Retailer 13
-
$5,101 AUD
View
Price last confirmed 46 days ago
Retailer 14
-
$5,101 AUD
View
Price last confirmed 39 days ago
Retailer 15
-
$5,330 AUD
View
Price last confirmed 38 days ago
Retailer 16
-
$7,481 AUD
View
Price last confirmed 37 days ago
Retailer 17
-
$7,702 AUD
View
Price last confirmed 38 days ago
Retailer 18
-
$7,702 AUD
View
Price last confirmed 48 days ago
Most Expensive
Queensmith
7546617126 · Oct 9
$8,465 AUD
£4,580 GBP
View
Price last confirmed 28 days ago
18 more retailers have this diamond
Prices start from $3,922 AUDSave up to $569 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
$3,922 AUD