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Heart|Natural|GIA

1.23ct G VS2 Heart Natural Diamond

EX • G/VS2 • GIA 1535424391

Certificate GIA 1535424391

Diamond specifications and retailer prices

From $4,387 AUD
As of November 6, 2026
Save $5,455 AUD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $10,255 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.23ct natural heart diamond

This 1.23ct natural heart sits in the classic one-carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1535424391. Listed at 15 retailers as of November 2, 2026, with a 124% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
G
Colour
VS2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle39.59°
Pavilion angle39.43°
OriginNatural
Grading LabGIA
CertificateGIA 1535424391
Dimensions6.37 × 7.36 × 4.36 mm
L/W Ratio1.16
Culet sizeNone
Top View
6.37 mm7.36 mm1.23 ctG / VS2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1535424391
Side View
Table 60.0%Crown 39.59°Girdle: STK-THKPavilion 39.43°Culet: NoneDepth 59.2%

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: $4,387 AUD|Low: $4,254 AUD|High: $9,962 AUD|Avg: $6,210 AUD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$4,387 AUD
Retailer 8$5,319 AUD
Retailer 5$5,432 AUD
Retailer 7$5,886 AUD
Retailer 2$5,961 AUD
Retailer 6$6,303 AUD
Retailer 3$7,184 AUD
Retailer 4$9,841 AUD

44 data points across 8 retailers

15 retailers$4,387 AUD to $9,841 AUD

A
Cheapest Retailer
-
$4,387 AUD
A
Retailer 2
-
$5,025 AUD
View
B+
Retailer 3
-
$5,178 AUD
View
B+
Retailer 4
-
$5,319 AUD
View
B+
Retailer 5
-
$5,432 AUD
View
Final sale: no returns
B+
Retailer 6
-
$5,611 AUD
View
Retailer 7
-
$5,886 AUD
View
Price last confirmed 40 days ago
Retailer 8
-
$5,886 AUD
View
Price last confirmed 30 days ago
B+
Retailer 9
-
$5,961 AUD
View
B+
Retailer 10
-
$6,280 AUD
View
Retailer 11
-
$6,303 AUD
View
Price last confirmed 36 days ago
Retailer 12
-
$6,791 AUD
View
Price last confirmed 40 days ago
B+
Retailer 13
-
$7,184 AUD
View
B
Retailer 14
-
$9,841 AUD
View
Most Expensive
NZ Jewellers
fb099d90-d583-41d4-bb91-9d3d7957c15b · Sep 28
$10,255 AUD
$7,046 USD
View
Price last confirmed 39 days ago
14 more retailers have this diamond
Prices start from $4,387 AUDSave up to $5,455 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
1.23ct Heart
$4,387 AUD