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Heart|Natural|GIA

1.23ct K VVS1 Heart Natural Diamond

EX • K/VVS1 • GIA 6545597330

Certificate GIA 6545597330

Diamond specifications and retailer prices

From $4,110 AUD
As of November 6, 2026
Save $3,180 AUD (44%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $7,290 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct natural heart diamond

This 1.23ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545597330. Listed at 4 retailers as of November 4, 2026, with prices from $4,110 to $7,290, a $3,180 spread on the same certified stone. MOH London lists it at $7,290. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
K
Colour
VVS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.86°
OriginNatural
Grading LabGIA
CertificateGIA 6545597330
Dimensions6.50 × 7.48 × 4.34 mm
L/W Ratio1.15
Top View
6.50 mm7.48 mm1.23 ctK / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545597330
Side View
Table 59.0%Crown 35.86°Girdle: STK-THKPavilionCulet: NoneDepth 58.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $7,290 AUD|Low: $4,110 AUD|High: $7,837 AUD|Avg: $5,078 AUD|-4.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$4,110 AUD
Retailer 6$4,199 AUD
Retailer 2$4,627 AUD
Retailer 3$4,698 AUD
Retailer 5$4,890 AUD
MOH London$7,290 AUD

41 data points across 6 retailers

4 retailers$4,110 AUD to $7,290 AUD

B+
Cheapest Retailer
-
$4,110 AUD
B+
Retailer 2
-
$4,627 AUD
View
B+
Retailer 3
-
$4,698 AUD
View
Most Expensive
B
MOH London
6326A4E5B · Nov 4
$7,290 AUD
£3,944 GBP
View
3 more retailers have this diamond
Prices start from $4,110 AUDSave up to $3,180 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+
1.23ct Heart
$4,110 AUD