Heart|Natural|GIA

1.20ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 6471259389

Certificate GIA 6471259389

Diamond specifications and retailer prices

From $1,653 USD
As of November 4, 2026
Save $1,846 USD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,499 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6471259389. Listed at 14 retailers as of November 4, 2026, with prices from $1,653 to $3,499, a $1,846 spread on the same certified stone. MOH London lists it at $3,499. 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

1.20
Carat
I
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6471259389
Dimensions6.25 × 5.72 × 4.10 mm
L/W Ratio1.09
Top View
6.25 mm5.72 mm1.20 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6471259389
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 71.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $3,499 USD|Low: $1,395 USD|High: $3,550 USD|Avg: $2,213 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 7$1,674 USD
Retailer 5$1,675 USD
Retailer 10$1,814 USD
Retailer 3$1,870 USD
Retailer 11$1,881 USD
Retailer 8$2,007 USD
Retailer 4$2,174 USD
Retailer 2$2,443 USD
Retailer 9$2,468 USD
Retailer 6$2,723 USD
MOH London$3,499 USD

45 data points across 11 retailers

14 retailers$1,653 USD to $3,499 USD

A
Cheapest Retailer
-
$1,653 USD
A
Retailer 2
-
$1,674 USD
View
Final sale: no returns
A
Retailer 3
-
$1,675 USD
View
A
Retailer 4
-
$1,703 USD
View
A
Retailer 5
-
$1,814 USD
View
B+
Retailer 6
-
$1,870 USD
View
B+
Retailer 7
-
$1,881 USD
View
B+
Retailer 8
-
$1,968 USD
View
B+
Retailer 9
-
$2,007 USD
View
B+
Retailer 10
-
$2,174 USD
View
B+
Retailer 11
-
$2,443 USD
View
Retailer 12
-
$2,468 USD
View
Price last confirmed 31 days ago
B
Retailer 13
-
$2,723 USD
View
Most Expensive
B
MOH London
E5159E46A · Nov 4
$3,499 USD
£2,755 GBP
View
13 more retailers have this diamond
Prices start from $1,653 USDSave up to $1,846 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.

A
1.20ct Heart
$1,653 USD