Heart|Natural|GIA

1.20ct F SI1 Heart Natural Diamond

GD • F/SI1 • GIA 6431067710

Shape and cutting style on the report: Cushion modified brilliant

Certificate GIA 6431067710

Diamond specifications and retailer prices

From $1,856 USD
As of November 6, 2026
Save $2,504 USD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,360 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 F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6431067710. Listed at 15 retailers as of November 4, 2026, with prices from $1,856 to $4,360, a $2,504 spread on the same certified stone. MOH London lists it at $4,360. 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
F
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6431067710
Dimensions6.62 × 5.39 × 4.00 mm
L/W Ratio1.23
Top View
6.62 mm5.39 mm1.20 ctF / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6431067710
Side View
Table 61.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 74.2%

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: $4,360 USD|Low: $1,843 USD|High: $4,425 USD|Avg: $2,726 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 6, 2026
Retailer 7$1,856 USD
Retailer 8$2,254 USD
Retailer 10$2,255 USD
Retailer 9$2,303 USD
Retailer 3$2,495 USD
Retailer 5$2,640 USD
Retailer 6$2,685 USD
Retailer 11$2,806 USD
Retailer 4$3,045 USD
Retailer 2$3,098 USD
MOH London$4,360 USD

46 data points across 11 retailers

15 retailers$1,856 USD to $4,360 USD

B+
Cheapest Retailer
-
$1,856 USD
B+
Retailer 2
-
$2,254 USD
View
B+
Retailer 3
-
$2,255 USD
View
B+
Retailer 4
-
$2,303 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,436 USD
View
Retailer 6
-
$2,495 USD
View
Price last confirmed 8 days ago
Retailer 7
-
$2,582 USD
View
Price last confirmed 10 days ago
B
Retailer 8
-
$2,626 USD
View
B
Retailer 9
-
$2,635 USD
View
B+
Retailer 10
-
$2,640 USD
View
B
Retailer 11
-
$2,685 USD
View
Retailer 12
-
$2,806 USD
View
Price last confirmed 33 days ago
B
Retailer 13
-
$3,045 USD
View
B
Retailer 14
-
$3,098 USD
View
Most Expensive
B
MOH London
EF17A3B57 · Nov 4
$4,360 USD
£3,433 GBP
View
14 more retailers have this diamond
Prices start from $1,856 USDSave up to $2,504 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+
1.20ct Heart
$1,856 USD