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Heart|Natural|GIA

1.21ct J VS1 Heart Natural Diamond

EX • J/VS1 • GIA 2125010349

Certificate GIA 2125010349

Diamond specifications and retailer prices

From $7,018 AUD
As of November 4, 2026
Save $3,685 AUD (34%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $12,889 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 2125010349. Listed at 10 retailers as of November 4, 2026, with a 53% 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

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

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2125010349
Dimensions6.82 × 5.54 × 3.83 mm
L/W Ratio1.23
Culet sizeNone
Top View
6.82 mm5.54 mm1.21 ctJ / VS1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2125010349
Side View
Table 63.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 69.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $12,889 AUD|Low: $8,096 AUD|High: $13,079 AUD|Avg: $10,008 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5$8,096 AUD
Retailer 6$8,671 AUD
Retailer 3$9,332 AUD
Retailer 2$9,530 AUD
Retailer 4$10,703 AUD
MOH London$12,889 AUD

43 data points across 6 retailers

10 retailers$7,018 AUD to $10,703 AUD

B
Cheapest Retailer
-
$7,018 AUD
B
Retailer 2
-
$7,650 AUD
View
B
Retailer 3
-
$8,096 AUD
View
Final sale: no returns
B
Retailer 4
-
$8,172 AUD
View
Retailer 5
-
$8,671 AUD
View
Price last confirmed 29 days ago
B
Retailer 6
-
$8,999 AUD
View
B
Retailer 7
-
$9,332 AUD
View
B
Retailer 8
-
$9,530 AUD
View
B
Retailer 9
-
$10,703 AUD
View
Most Expensive
MOH London
14171E952 · Nov 4
$12,889 AUD
£6,973 GBP
View
Price under review
9 more retailers have this diamond
Prices start from $7,018 AUDSave up to $3,685 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
$7,018 AUD