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Radiant|Natural|GIA

1.21ct F SI1 Radiant Natural Diamond

GD • F/SI1 • GIA 1279100240

Certificate GIA 1279100240

Diamond specifications and retailer prices

From $7,034 CAD
As of November 6, 2026
Save $1,635 CAD (19%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $8,669 CAD at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant 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 1279100240. Listed at 6 retailers as of November 5, 2026, with prices from $7,034 to $8,669, a $1,635 spread on the same certified stone. 77 Diamonds lists it at $8,669. 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
F
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1279100240
Dimensions5.74 × 5.31 × 4.22 mm
L/W Ratio1.08
Top View
5.74 mm5.31 mm1.21 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1279100240
Side View
Table 68.0%CrownGirdle: ThickPavilionCulet: NoneDepth 79.4%

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 6
Current: $8,669 CAD|Low: $7,034 CAD|High: $8,782 CAD|Avg: $7,926 CAD|-0.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2$7,034 CAD
Retailer 6$7,454 CAD
Retailer 3$7,462 CAD
Retailer 5$7,650 CAD
Retailer 4$8,545 CAD
77 Diamonds$8,669 CAD

39 data points across 6 retailers

6 retailers$7,034 CAD to $8,669 CAD

B
Cheapest Retailer
-
$7,034 CAD
B
Retailer 2
-
$7,454 CAD
View
Retailer 3
-
$7,462 CAD
View
Price last confirmed 10 days ago
B
Retailer 4
-
$7,650 CAD
View
Retailer 5
-
$8,545 CAD
View
Price last confirmed 9 days ago
Most Expensive
B
77 Diamonds
RADZYSVFQSTP · Nov 5
$8,669 CAD
£4,853 GBP
View
5 more retailers have this diamond
Prices start from $7,034 CADSave up to $1,635 CAD

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 Radiant
$7,034 CAD