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Heart|Natural|GIA

1.20ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 5553470793

Certificate GIA 5553470793

Diamond specifications and retailer prices

From $3,931 AUD
As of November 6, 2026
Save $4,209 AUD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,140 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 5553470793. Listed at 19 retailers as of November 5, 2026, with prices from $3,931 to $8,140, a $4,209 spread on the same certified stone. NZ Jewellers lists it at $8,140. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.48°
Pavilion angle43.49°
OriginNatural
Grading LabGIA
CertificateGIA 5553470793
Dimensions7.24 × 6.27 × 4.52 mm
L/W Ratio1.15
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
7.24 mm6.27 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553470793
Side View
Table 59.0%Crown 37.48°Girdle: Slightly ThickPavilion 43.49°Culet: NoneDepth 62.4%

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: $8,140 AUD|Low: $3,931 AUD|High: $8,390 AUD|Avg: $5,432 AUD|-3.0%
NZ Jewellers
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 7, 2026
Retailer 5$3,931 AUD
Retailer 15$4,122 AUD
Retailer 14$4,247 AUD
Retailer 9$4,440 AUD
Retailer 16$4,465 AUD
Retailer 13$4,468 AUD
Retailer 8$4,672 AUD
Retailer 12$4,762 AUD
Retailer 11$4,780 AUD
Retailer 18$4,812 AUD
Retailer 10$4,816 AUD
Retailer 7$4,959 AUD
Retailer 3$5,145 AUD
Retailer 4$5,311 AUD
Retailer 17$5,359 AUD
Retailer 6$5,702 AUD
Retailer 2$7,657 AUD
NZ Jewellers$8,140 AUD

27 data points across 18 retailers

19 retailers$3,931 AUD to $8,140 AUD

B+
Cheapest Retailer
-
$3,931 AUD
B+
Retailer 2
-
$4,122 AUD
View
B+
Retailer 3
-
$4,247 AUD
View
Final sale: no returns
B+
Retailer 4
-
$4,440 AUD
View
B+
Retailer 5
-
$4,465 AUD
View
B+
Retailer 6
-
$4,468 AUD
View
B+
Retailer 7
-
$4,672 AUD
View
B+
Retailer 8
-
$4,762 AUD
View
B+
Retailer 9
-
$4,780 AUD
View
B
Retailer 10
-
$4,812 AUD
View
Retailer 11
-
$4,816 AUD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$4,959 AUD
View
Retailer 13
-
$5,145 AUD
View
Price last confirmed 31 days ago
B
Retailer 14
-
$5,145 AUD
View
B
Retailer 15
-
$5,311 AUD
View
B
Retailer 16
-
$5,359 AUD
View
B
Retailer 17
-
$5,702 AUD
View
B
Retailer 18
-
$7,657 AUD
View
Most Expensive
B
NZ Jewellers
2fce64ee-7c30-4c4a-bfd7-58f9eb41f63c · Nov 5
$8,140 AUD
$5,593 USD
View
18 more retailers have this diamond
Prices start from $3,931 AUDSave up to $4,209 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
$3,931 AUD