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Round|Natural|GIA

1.21ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 2166080674

Certificate GIA 2166080674

Diamond specifications and retailer prices

From $9,220 CAD
$6,600 USD
As of October 25, 2026
Save $3,612 CAD (28%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $20,628 CAD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2166080674. Listed at 9 retailers as of October 25, 2026, with a 39% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
E
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2166080674
Dimensions6.85 × 6.82 × 4.23 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.85 mm6.82 mm1.21 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2166080674
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.9%

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: Oct 25
Current: $12,831 CAD|Low: $9,220 CAD|High: $12,831 CAD|Avg: $11,076 CAD|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 29, 2026
Retailer 2$9,220 CAD
Retailer 3$10,200 CAD
Retailer 4$12,241 CAD
Retailer 1$12,831 CAD

25 data points across 4 retailers

9 retailers$9,220 CAD to $12,831 CAD

B
Cheapest Retailer
-
$9,220 CAD
$6,600 USD
B
Retailer 2
-
$9,338 CAD
$6,685 USD
View
B
Retailer 3
-
$10,200 CAD
View
B
Retailer 4
-
$12,241 CAD
$8,763 USD
View
B
Retailer 5
-
$12,293 CAD
$8,800 USD
View
B
Retailer 6
-
$12,293 CAD
$8,800 USD
View
B
Retailer 7
-
$12,698 CAD
$9,090 USD
View
B
Retailer 8
-
$12,831 CAD
€8,748 EUR
View
Most Expensive
Diamond Quarter
1.21SI2E2174BEA0N · Oct 29
$20,628 CAD
£11,628 GBP
View
Price under review
8 more retailers have this diamond
Prices start from $9,220 CADSave up to $3,612 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 Round
$9,220 CAD