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Heart|Natural|GIA

1.21ct J VS1 Heart Natural Diamond

EX • J/VS1 • GIA 1455555188

Certificate GIA 1455555188

Diamond specifications and retailer prices

From $3,522 AUD
As of November 6, 2026
Save $3,350 AUD (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,872 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1455555188. Listed at 11 retailers as of November 4, 2026, with prices from $3,522 to $6,872, a $3,350 spread on the same certified stone. MOH London lists it at $6,872. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
J
Colour
VS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1455555188
Dimensions6.23 × 5.90 × 4.05 mm
L/W Ratio1.06
Top View
6.23 mm5.90 mm1.21 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1455555188
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.7%

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: $6,872 AUD|Low: $2,966 AUD|High: $6,974 AUD|Avg: $4,495 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$3,522 AUD
Retailer 2$3,595 AUD
Retailer 8$3,753 AUD
Retailer 5$3,866 AUD
Retailer 7$4,405 AUD
Retailer 4$4,800 AUD
Retailer 3$4,839 AUD
MOH London$6,872 AUD

45 data points across 8 retailers

11 retailers$3,522 AUD to $6,872 AUD

B+
Cheapest Retailer
-
$3,522 AUD
B+
Retailer 2
-
$3,595 AUD
View
Final sale: no returns
B+
Retailer 3
-
$3,753 AUD
View
B+
Retailer 4
-
$3,866 AUD
View
B+
Retailer 5
-
$3,871 AUD
View
B+
Retailer 6
-
$3,937 AUD
View
B
Retailer 7
-
$4,254 AUD
View
Retailer 8
-
$4,405 AUD
View
Price last confirmed 31 days ago
B+
Retailer 9
-
$4,800 AUD
View
B+
Retailer 10
-
$4,839 AUD
View
Most Expensive
B
MOH London
99BD1E4B4 · Nov 4
$6,872 AUD
£3,718 GBP
View
10 more retailers have this diamond
Prices start from $3,522 AUDSave up to $3,350 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
$3,522 AUD