Heart|Natural|GIA

1.21ct J SI1 Heart Natural Diamond

GD • J/SI1 • GIA 7458197631

Certificate GIA 7458197631

Diamond specifications and retailer prices

From $2,086 USD
As of November 6, 2026
Save $1,949 USD (48%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,035 USD 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7458197631. Listed at 12 retailers as of November 4, 2026, with prices from $2,086 to $4,035, a $1,949 spread on the same certified stone. MOH London lists it at $4,035. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
J
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7458197631
Dimensions6.47 × 5.84 × 3.91 mm
L/W Ratio1.11
Top View
6.47 mm5.84 mm1.21 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7458197631
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.0%

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: $4,035 USD|Low: $1,738 USD|High: $4,094 USD|Avg: $2,632 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$2,086 USD
Retailer 2$2,111 USD
Retailer 9$2,239 USD
Retailer 6$2,310 USD
Retailer 5$2,314 USD
Retailer 4$2,818 USD
Retailer 3$2,840 USD
Retailer 8$2,853 USD
MOH London$4,035 USD

38 data points across 9 retailers

12 retailers$2,086 USD to $4,035 USD

B+
Cheapest Retailer
-
$2,086 USD
B+
Retailer 2
-
$2,111 USD
View
Final sale: no returns
B
Retailer 3
-
$2,239 USD
View
B
Retailer 4
-
$2,310 USD
View
B
Retailer 5
-
$2,314 USD
View
B
Retailer 6
-
$2,329 USD
View
B
Retailer 7
-
$2,448 USD
View
B
Retailer 8
-
$2,533 USD
View
B
Retailer 9
-
$2,818 USD
View
B
Retailer 10
-
$2,840 USD
View
Retailer 11
-
$2,853 USD
View
Price last confirmed 33 days ago
Most Expensive
C
MOH London
CA0DCDDA5 · Nov 4
$4,035 USD
£3,177 GBP
View
11 more retailers have this diamond
Prices start from $2,086 USDSave up to $1,949 USD

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
$2,086 USD