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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 £1,803 GBP
$2,420 USD
As of November 1, 2026
Save £1,725 GBP (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,528 GBP at MOH London · As of November 1, 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 1, 2026, with prices from £1,803 to £3,528, a £1,725 spread on the same certified stone. MOH London lists it at £3,528. 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 1
Current: £3,528 GBP|Low: £1,519 GBP|High: £3,571 GBP|Avg: £2,261 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5£1,803 GBP
Retailer 6£1,859 GBP
Retailer 8£1,922 GBP
Retailer 9£1,982 GBP
Retailer 2£1,999 GBP
Retailer 7£2,256 GBP
Retailer 3£2,475 GBP
Retailer 4£2,515 GBP
MOH London£3,528 GBP

45 data points across 9 retailers

11 retailers£1,803 GBP to £3,528 GBP

B+
Cheapest Retailer
-
£1,803 GBP
$2,420 USD
B+
Retailer 2
-
£1,859 GBP
$2,494 USD
View
Final sale: no returns
B+
Retailer 3
-
£1,922 GBP
$2,579 USD
View
B+
Retailer 4
-
£1,982 GBP
$2,660 USD
View
B+
Retailer 5
-
£1,999 GBP
View
B+
Retailer 6
-
£2,016 GBP
$2,705 USD
View
B
Retailer 7
-
£2,179 GBP
A$4,498 AUD
View
Retailer 8
-
£2,256 GBP
A$4,658 AUD
View
Price last confirmed 25 days ago
B
Retailer 9
-
£2,475 GBP
ZAR 53,664 ZAR
View
B
Retailer 10
-
£2,515 GBP
€3,214 EUR
View
Most Expensive
B
MOH London
99BD1E4B4 · Nov 1
£3,528 GBP
View
10 more retailers have this diamond
Prices start from £1,803 GBPSave up to £1,725 GBP

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
£1,803 GBP