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Heart|Natural|GIA

1.21ct G SI1 Heart Natural Diamond

VG • G/SI1 • GIA 6542374552

Certificate GIA 6542374552

Diamond specifications and retailer prices

From $4,138 AUD
As of November 6, 2026
Save $4,746 AUD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,884 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6542374552. Listed at 17 retailers as of November 5, 2026, with prices from $4,138 to $8,884, a $4,746 spread on the same certified stone. NZ Jewellers lists it at $8,884. 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

1.21
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542374552
Dimensions7.28 × 6.59 × 4.15 mm
L/W Ratio1.10
Top View
7.28 mm6.59 mm1.21 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542374552
Side View
Table 61.0%CrownGirdle: ThickPavilionCulet: 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 6
Current: $8,884 AUD|Low: $4,138 AUD|High: $8,884 AUD|Avg: $5,624 AUD
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
November 7, 2026
Retailer 4$4,138 AUD
Retailer 5$4,339 AUD
Retailer 3$4,619 AUD
Retailer 14$4,619 AUD
Retailer 11$4,797 AUD
Retailer 8$4,945 AUD
Retailer 12$5,238 AUD
Retailer 7$5,260 AUD
Retailer 13$5,330 AUD
Retailer 6$5,404 AUD
Retailer 9$5,935 AUD
Retailer 10$6,223 AUD
Retailer 2$8,482 AUD
NZ Jewellers$8,884 AUD

31 data points across 14 retailers

17 retailers$4,138 AUD to $8,884 AUD

B+
Cheapest Retailer
-
$4,138 AUD
B+
Retailer 2
-
$4,328 AUD
View
Retailer 3
-
$4,339 AUD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$4,619 AUD
View
Retailer 5
-
$4,619 AUD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$4,647 AUD
View
B+
Retailer 7
-
$4,797 AUD
View
B+
Retailer 8
-
$4,945 AUD
View
B
Retailer 9
-
$5,238 AUD
View
B
Retailer 10
-
$5,260 AUD
View
B
Retailer 11
-
$5,330 AUD
View
Retailer 12
-
$5,404 AUD
View
Price last confirmed 39 days ago
Retailer 13
-
$5,776 AUD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$5,935 AUD
View
B
Retailer 15
-
$6,223 AUD
View
B
Retailer 16
-
$8,482 AUD
View
Most Expensive
B
NZ Jewellers
72be4621-ea94-4ed2-973d-2c86eee05f1b · Nov 5
$8,884 AUD
$6,104 USD
View
16 more retailers have this diamond
Prices start from $4,138 AUDSave up to $4,746 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+
1.21ct Heart
$4,138 AUD