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Heart|Natural|GIA

1.20ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 6535758842

Certificate GIA 6535758842

Diamond specifications and retailer prices

From $3,640 AUD
As of November 6, 2026
Save $5,271 AUD (59%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,911 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6535758842. Listed at 12 retailers as of November 5, 2026, with prices from $3,640 to $8,911, a $5,271 spread on the same certified stone. NZ Jewellers lists it at $8,911. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.44°
Pavilion angle39.76°
OriginNatural
Grading LabGIA
CertificateGIA 6535758842
Dimensions7.40 × 6.31 × 3.72 mm
L/W Ratio1.17
Top View
7.40 mm6.31 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535758842
Side View
Table 62.0%Crown 38.44°Girdle: MED-VTKPavilion 39.76°Culet: NoneDepth 59.0%

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: $8,911 AUD|Low: $3,640 AUD|High: $8,911 AUD|Avg: $5,075 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$3,640 AUD
Retailer 5$3,932 AUD
Retailer 8$4,024 AUD
Retailer 2$4,192 AUD
Retailer 6$4,263 AUD
Retailer 10$4,263 AUD
Retailer 3$4,512 AUD
Retailer 7$4,918 AUD
Retailer 4$7,108 AUD
NZ Jewellers$8,911 AUD

43 data points across 10 retailers

12 retailers$3,640 AUD to $8,911 AUD

A
Cheapest Retailer
-
$3,640 AUD
A
Retailer 2
-
$3,818 AUD
View
B+
Retailer 3
-
$3,932 AUD
View
Final sale: no returns
B+
Retailer 4
-
$4,024 AUD
View
B+
Retailer 5
-
$4,192 AUD
View
Retailer 6
-
$4,263 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$4,263 AUD
View
B+
Retailer 8
-
$4,426 AUD
View
B+
Retailer 9
-
$4,512 AUD
View
B+
Retailer 10
-
$4,918 AUD
View
B
Retailer 11
-
$7,108 AUD
View
Most Expensive
B
NZ Jewellers
2b707bbb-3a3a-476b-8c95-d06edac9fd56 · Nov 5
$8,911 AUD
$6,123 USD
View
11 more retailers have this diamond
Prices start from $3,640 AUDSave up to $5,271 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
$3,640 AUD